237 results on '"Bryant, AL"'
Search Results
102. Mechanism of Anterior Cruciate Ligament Loading during Dynamic Motor Tasks.
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Nasseri A, Lloyd DG, Bryant AL, Headrick J, Sayer TA, and Saxby DJ
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- Adolescent, Anterior Cruciate Ligament Injuries prevention & control, Anterior Cruciate Ligament Injuries rehabilitation, Biomechanical Phenomena, Computer Simulation, Electromyography, Exercise Test, Female, Hamstring Muscles physiology, Humans, Quadriceps Muscle physiology, Stress, Mechanical, Task Performance and Analysis, Young Adult, Anterior Cruciate Ligament physiology, Knee physiology, Muscle, Skeletal physiology
- Abstract
Introduction: This study determined anterior cruciate ligament (ACL) force and its contributors during a standardized drop-land-lateral jump task using a validated computational model., Methods: Three-dimensional whole-body kinematics, ground reaction forces, and muscle activation patterns from eight knee-spanning muscles were collected during dynamic tasks performed by healthy recreationally active females (n = 24). These data were used in a combined neuromusculoskeletal and ACL force model to determine lower limb muscle and ACL forces., Results: Peak ACL force (2.3 ± 0.5 bodyweight) was observed at ~14% of stance during the drop-land-lateral jump. The ACL force was primarily generated through the sagittal plane, and muscle was the dominant source of ACL loading. The main ACL antagonists (i.e., loaders) were the gastrocnemii and quadriceps, whereas the hamstrings were the main ACL agonists (i.e., supporters)., Conclusion: Combining neuromusculoskeletal and ACL force models, the roles of muscle in ACL loading and support were determined during a challenging motor task. Results highlighted the importance of the gastrocnemius in ACL loading, which could be considered more prominently in ACL injury prevention and rehabilitation programs., (Copyright © 2021 by the American College of Sports Medicine.)
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- 2021
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103. Predictors of Unplanned Hospitalizations Among Older Adults Receiving Cancer Chemotherapy.
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Klepin HD, Sun CL, Smith DD, Elias R, Trevino KM, Bryant AL, Li D, Nelson C, Tew WP, Mohile SG, Gajra A, Owusu C, Gross C, Lichtman SM, Katheria VV, Muss HB, Chapman AE, Cohen HJ, Hurria A, and Dale W
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- Aged, Cohort Studies, Geriatric Assessment, Hospitalization, Humans, Length of Stay, Neoplasms drug therapy, Quality of Life
- Abstract
Purpose: Hospitalizations during cancer treatment are costly, can impair quality of life, and negatively affect therapy completion. Our objective was to identify risk factors for unplanned hospitalization among older adults receiving chemotherapy., Methods: This is a secondary analysis of a multisite cohort study (N = 750) of patients ≥ 65 years of age evaluated with a geriatric assessment (GA) to predict chemotherapy toxicity. The primary outcome of this analysis was unplanned hospitalizations during treatment; the secondary outcome was length of stay (LOS) of the first hospitalization. Independent variables included pretreatment GA measures, laboratory values, cancer type and stage, and treatment intensity characteristics. We used logistic regression to estimate the odds of hospitalization and generalized linear models for LOS in multivariable analyses., Results: The sample median age was 72 years (range, 65-94 years); 59% had stage IV disease. At least one unplanned hospitalization occurred in 193 patients (25.7%) during receipt of chemotherapy. In multivariable analyses controlling for cancer type, the following baseline characteristics were significantly associated with increased odds of hospitalization: needing help bathing or dressing (odds ratio [OR], 1.8; 95% CI, 1.0 to 3.1), polypharmacy (≥ 5 meds) (OR, 1.6; 95% CI, 1.1 to 2.4), more comorbid conditions (OR, 1.1; 95% CI, 1.0 to 1.3), availability of someone to take them to the doctor (OR, 2.0; 95% CI, 1.0 to 4.1), CrCl < 60 mL/min (OR, 1.7; 95% CI, 1.1 to 2.4), and albumin < 3.5 g/dL (OR, 1.8; 95% CI, 1.2 to 2.8). In multivariable analyses, older age, self-reported presence of liver or kidney disease, living alone and depressive symptoms were associated with longer LOS., Conclusion: Readily available GA variables and laboratory data, but not age, were associated with unplanned hospitalizations among older adults receiving chemotherapy. If validated, these data can inform prediction models and the design of interventions to decrease unplanned hospitalizations., Competing Interests: Amanda Nickles FaderHonoraria: Ethicon, Mersana, Intuitive SurgicalConsulting or Advisory Role: Merck Christian MeyerConsulting or Advisory Role: BayerSpeakers' Bureau: NovartisTravel, Accommodations, Expenses: Plexxikon, LillyOther Relationship: UpToDate Stephanie GaillardConsulting or Advisory Role: Immunogen, AstraZeneca, Sermonix Pharmaceuticals, RigelResearch Funding: PharmaMar, Genentech/Roche, Iovance Biotherapeutics, Abbvie, AstraZeneca, Pfizer, TesaroPatents, Royalties, Other Intellectual Property: Sermonix PharmaceuticalsNo other potential conflicts of interest were reported.
- Published
- 2021
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104. Using Cognitive Interviewing to Design Interventions for Implementation in Oncology Settings.
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Hirschey R, Nance J, Wangen M, Bryant AL, Wheeler SB, Herrera J, and Leeman J
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- Cancer Survivors statistics & numerical data, Evidence-Based Nursing, Humans, Nurse-Patient Relations, Cognitive Behavioral Therapy methods, Exercise, Interview, Psychological methods, Nurse's Role, Oncology Nursing methods
- Abstract
Background: Implementation of effective interventions into clinical practice is slow, in large part, because researchers do not sufficiently attend to the realities of nurses who implement interventions., Objectives: The aim of the study was to provide an exemplar of how cognitive interviewing-an important and underused method for developing nursing research-can be used to design survey items and assess multilevel implementation factors., Methods: We utilized the Consolidated Framework for Implementation Research to create a survey to assess factors that influence how oncology nurses deliver physical activity interventions. Two rounds of cognitive interviews were conducted with five purposively selected oncology nurses to assess survey items' clarity and effectiveness at eliciting desired information. We used a cognitive interviewing coding scheme to code data and revise unclear items. Participants completed the revised survey online and underwent a second interview to provide additional feedback., Results: Seven important changes were made to the survey: how to assess nurses' perceptions of other nurses' beliefs and practices; language to capture data relating to nursing leadership and administration; increased detail to assess factors related to nurses' workplaces; language related to capturing factors related to policy; language to capture data related to equity, disparities, and cultural tailoring; terms replacement with language used by nurses; and strategy to capture data about nurses' knowledge of national physical activity recommendations for cancer survivors., Discussion: Cognitive interviewing can be applied to develop survey items that capture real-world experiences and perspectives of practicing nurses. This is an essential step in developing nursing interventions that are ready to be implemented and increasing the uptake of evidence-based nursing care. Cognitive interviewing can be used across nursing settings, populations, and interventions to develop understandings of attitudes, attributes, characteristics, and perceptions for a variety of nursing interventions., Competing Interests: Stephanie Wheeler has received unrelated grant funding paid to her institution from Pfizer Foundation in the past 3 years. The authors have no other conflicts of interest to report., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2021
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105. Oral adherence in adults with acute myeloid leukemia (AML): results of a mixed methods study.
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Bryant AL, LeBlanc TW, Albrecht T, Chan YN, Richardson J, Foster M, Dang M, Dudley W, Owenby S, and Wujcik D
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- Administration, Oral, Age Factors, Aged, Caregivers, Humans, Male, Middle Aged, Antineoplastic Agents administration & dosage, Leukemia, Myeloid, Acute drug therapy, Medication Adherence
- Abstract
Introduction: The incidence of AML is increasing, in part due to an aging population. Since 2017, eight novel agents have been introduced, 6 of which are oral: midostaurin, enasidenib, ivosidenib, gilteritinib, glasdegib, and venetoclax. With an increase in oral medications (OMs), patients face associated side effects that accompany OMs, which often decreases adherence. We aimed to identify and summarize adherence to OMs in this population., Methods: Our mixed method design used focus groups (FG) and patient surveys. After IRB approval, 11 patients and 4 caregivers participated in 4 FGs. Themes from the FGs were used to develop a 37-item OMs adherence needs assessment. Participants were recruited and consented at three cancer centers to complete surveys (online, at the clinic, hospital, or from home)., Results: A total of 100 patients completed OMs survey. The number of pills to be taken was the most frequent and troublesome challenge. The most frequently reported interventions that would improve patient adherence were smaller pills, easier packaging, and scheduling assistance. Nearly 33% of patients indicated they skip OMs dose altogether when they forget to take it. Younger patients (< 65 years) were more accepting of taking oral compared with intravenous medications (p = .03)., Conclusion: This study represents the first assessment of OMs adherence in adults with AML. Findings provide the basis for further exploration of interventions to enhance and increase adherence to OMs regimens.
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- 2020
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106. Effects of Supervised Early Resistance Training versus standard care on cognitive recovery following cardiac surgery via median sternotomy (the SEcReT study): protocol for a randomised controlled pilot study.
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Pengelly JMS, Royse AG, Bryant AL, Williams GP, Tivendale LJ, Dettmann TJ, Canty DJ, Royse CF, and El-Ansary DA
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- Australia, Humans, Pilot Projects, Prospective Studies, Quality of Life, Randomized Controlled Trials as Topic, Treatment Outcome, Cardiac Surgical Procedures rehabilitation, Cognition, Exercise Therapy, Resistance Training, Sternotomy rehabilitation
- Abstract
Introduction: Mild cognitive impairment is considered a precursor to dementia and significantly impacts upon quality of life. The prevalence of mild cognitive impairment is higher in the post-surgical cardiac population than in the general population, with older age and comorbidities further increasing the risk of cognitive decline. Exercise improves neurogenesis, synaptic plasticity and inflammatory and neurotrophic factor pathways, which may help to augment the effects of cognitive decline. However, the effects of resistance training on cognitive, functional and overall patient-reported recovery have not been investigated in the surgical cardiac population. This study aims to determine the effect of early moderate-intensity resistance training, compared to standard care, on cognitive recovery following cardiac surgery via a median sternotomy. The safety, feasibility and effect on functional recovery will also be examined., Methods: This study will be a prospective, pragmatic, pilot randomised controlled trial comparing a standard care group (low-intensity aerobic exercise) and a moderate-intensity resistance training group. Participants aged 18 years and older with coronary artery and/or valve disease requiring surgical intervention will be recruited pre-operatively and randomised 1:1 to either the resistance training or standard care group post-operatively. The primary outcome, cognitive function, will be assessed using the Alzheimer's Disease Assessment Scale and cognitive subscale. Secondary measures include safety, feasibility, muscular strength, physical function, multiple-domain quality of recovery, dynamic balance and patient satisfaction. Assessments will be conducted at baseline (pre-operatively) and post-operatively at 2 weeks, 8 weeks, 14 weeks and 6 months., Discussion: The results of this pilot study will be used to determine the feasibility of a future large-scale randomised controlled trial that promotes the integration of early resistance training into existing aerobic-based cardiac rehabilitation programs in Australia., Trial Registration: Australian New Zealand Clinical Trials Registry (ANZCTR) ACTRN12617001430325p . Registered on 9 October 2017. Universal Trial Number (UTN): U1111-1203-2131.
- Published
- 2020
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107. Muscular Coordination of Single-Leg Hop Landing in Uninjured and Anterior Cruciate Ligament-Reconstructed Individuals.
- Author
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Sritharan P, Perraton LG, Munoz MA, Pivonka P, and Bryant AL
- Abstract
This study compared lower-limb muscle function, defined as the contributions of muscles to center-of-mass support and braking, during a single-leg hopping task in anterior cruciate ligament-reconstructed (ACLR) individuals and uninjured controls. In total, 65 ACLR individuals and 32 controls underwent a standardized anticipated single-leg forward hop. Kinematics and ground reaction force data were input into musculoskeletal models to calculate muscle forces and to quantify muscle function by decomposing the vertical (support) and fore-aft (braking) ground reaction force components into contributions by individual lower-limb muscles. Four major muscles, the vasti, soleus, gluteus medius, and gluteus maximus, were primarily involved in support and braking in both ACLR and uninjured groups. However, although the ACLR group demonstrated lower peak forces for these muscles (all Ps < .001, except gluteus maximus, P = .767), magnitude differences in these muscles' contributions to support and braking were not significant. ACLR individuals demonstrated higher erector spinae (P = .012) and hamstrings forces (P = .085) to maintain a straighter, stiffer landing posture with more forward lumbar flexion. This altered landing posture may have enabled the ACLR group to achieve similar muscle function to controls, despite muscle force deficits. Our findings may benefit rehabilitation and the development of interventions to enable faster and safer return to sport.
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- 2020
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108. Systematic Review of Video Education in Underrepresented Minority Cancer Survivors.
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Hirschey R, Bryant AL, Walker JS, and Nolan TS
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- Adult, Cancer Survivors statistics & numerical data, Ethnicity statistics & numerical data, Humans, Minority Groups statistics & numerical data, Randomized Controlled Trials as Topic, Cancer Survivors education, Ethnicity education, Health Education methods, Minority Groups education, Videotape Recording
- Abstract
Background: Underrepresented minority (URM) cancer survivors experience disparities in mortality and quality of life, compared with non-Hispanic whites. Disparities are associated with poor social determinants of health, enhanced by mistrust of the healthcare system. Trust can be facilitated by provider-patient racial/ethnic concordance, yet URM survivors rarely experience concordance. Effective health communication is needed for this vulnerable population., Objective: The aim of this study was to systematically review evidence on the composition and utility of health education videos among adult URM survivors., Methods: Literature searches were conducted in Web of Science, Embase, PubMed, Cochrane, PsycInfo, and CINAHL databases. Articles that included adult URM cancer survivor samples and either described or tested a video intervention aimed to improve health outcomes were included. Two researchers independently screened articles for inclusion and quality appraisal and abstracted and synthesized relevant data to identify themes., Results: Eight articles, detailing 7 independent studies, met inclusion criteria. Quality appraisal of the included studies was fair to good. Six themes were identified: (1) video development with stakeholders, (2) focus on designing culturally appropriate videos, (3) in-clinic video delivery, (4) video intervention effects, (5) provider and URM survivors support video interventions, and (6) building trust through personal stories., Conclusions: Video interventions are well received by URMs and improve outcomes yet are underutilized. More rigorous studies are warranted to develop best practices for video development and application., Implications for Practice: Videos serve as an easy, effective tool to achieve favorable outcomes in the care of URM survivors.
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- 2020
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109. Between-Limb Differences in Patellofemoral Joint Forces During Running at 12 to 24 Months After Unilateral Anterior Cruciate Ligament Reconstruction.
- Author
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Sritharan P, Schache AG, Culvenor AG, Perraton LG, Bryant AL, and Crossley KM
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- Adolescent, Adult, Biomechanical Phenomena, Female, Follow-Up Studies, Humans, Male, Middle Aged, Osteoarthritis, Knee etiology, Osteoarthritis, Knee physiopathology, Torque, Weight-Bearing physiology, Young Adult, Anterior Cruciate Ligament Injuries physiopathology, Anterior Cruciate Ligament Injuries surgery, Anterior Cruciate Ligament Reconstruction methods, Patellofemoral Joint physiology, Running physiology
- Abstract
Background: Patellofemoral joint (PFJ) osteoarthritis may occur after anterior cruciate ligament reconstruction (ACLR). The mechanisms underpinning the development of PFJ osteoarthritis are not known but may relate to altered PFJ loading. Few studies have assessed PFJ loads during high-impact tasks, such as running, beyond the acute rehabilitation phase (ie, >12 months) after ACLR., Purpose/hypothesis: The purpose was to compare between-limb joint angles, joint moments, and PFJ contact force during running in individuals at 12 to 24 months after unilateral ACLR. We hypothesized that peak knee flexion angle, knee extension moment, and PFJ contact force during stance would be lower in the ACLR limb compared with the uninjured limb., Study Design: Controlled laboratory study., Methods: A total of 55 participants (mean ± SD age, 28 ± 7 years), 12 to 24 months after ACLR, ran at a self-selected speed (2.9 ± 0.3 m/s). Measured kinematics and ground-reaction forces were input into musculoskeletal models to calculate joint moments and muscle forces. These values were subsequently input into a PFJ model to calculate contact force peak and impulse. Outcome measures were compared between the ACLR and uninjured limbs., Results: In the ACLR limb, compared with the uninjured limb, the PFJ contact force displayed a lower peak (ACLR, 6.1 ± 1.3 body weight [BW]; uninjured, 6.7 ± 1.4 BW; P < .001) and impulse (ACLR, 0.72 ± 0.17 BW*seconds [BWs]; uninjured, 0.81 ± 0.17 BWs; P < .001). At the time of the peak PFJ contact force, the knee extension moment was lower in the ACLR limb (ACLR, 14.0 ± 2.4 %BW*height [%BW*HT]; uninjured, 15.5 ± 2.5 %BW*HT; P < .001). The opposite was true for the ankle plantarflexion moment (ACLR, 12.1 ± 2.6 %BW*HT; uninjured, 11.5 ± 2.7 %BW*HT; P = .019) and the hip extension moment (ACLR, 2.3 ± 2.5 %BW*HT; uninjured, 1.6 ± 2.3 %BW*HT; P = .013). The foot-ground center of pressure was located more anteriorly with respect to the ankle joint center (ACLR, 5.8 ± 0.9 %height [%HT]; uninjured, 5.4 ± 1.0 %HT; P = .001). No differences were found for the sagittal plane hip, knee, and ankle angles., Conclusion: The ACLR limb experienced lower peak PFJ loads during running, explained by a small anterior shift in the foot-ground center of pressure during stance that offloaded the torque demand away from the ACLR knee., Clinical Relevance: Lower net PFJ loading during running in the ACLR limb more than 12 months after ACLR suggests that underloading might play a role in the onset of PFJ osteoarthritis after ACLR.
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- 2020
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110. Understanding Barriers to Oral Therapy Adherence in Adults With Acute Myeloid Leukemia.
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Bryant AL, Chan YN, Richardson J, Foster M, Owenby S, and Wujcik D
- Abstract
Acute myeloid leukemia (AML) is a disease of older adults, with a median age at diagnosis of 68 years. The availability of oral anticancer medications has increased, although the standard treatment for AML remains in intravenous form. We aim to identify barriers to adherence to oral medications in patients with AML and proposed solutions for improvements. Following institutional review board approval, patients with AML and their caregivers were recruited to participate in focus groups. Sessions were digitally recorded, transcribed verbatim, and analyzed for thematic content using Dedoose qualitative software. 11 patients (five < 65 years; six ≥ 65 years) and 4 caregivers participated in these sessions. Three central themes emerged: 1) medication adherence challenges, 2) managing an oral adherence plan, and 3) strategies to improve oral adherence. Participants recommended written schedules, taking medications around meals, and using pillboxes and alarms. We believe that patients are an important source of insight into barriers and solutions to oral medication adherence., Competing Interests: Ms. Richardson has served on an advisory board for Roche. Ms. Owenby and Dr. Wujcik are employees of Carevive Systems, Inc. The remaining authors have no conflicts of interest to disclose., (© 2020 Harborside™.)
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- 2020
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111. Predicting physical activity among cancer survivors: Meta-analytic path modeling of longitudinal studies.
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Hirschey R, Bryant AL, Macek C, Battaglini C, Santacroce S, Courneya KS, Walker JS, Avishai A, and Sheeran P
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- Female, Humans, Longitudinal Studies, Male, Cancer Survivors psychology, Exercise psychology
- Abstract
Objective: We conducted meta-analyses and meta-analytic structural equation modeling of longitudinal studies among cancer survivors to (a) quantify associations between psychosocial predictors and physical activity, (b) test how psychosocial predictors combine to influence physical activity, and (c) identify study, demographic, and clinical characteristics that moderate associations., Method: Eligible studies used a longitudinal, observational design, included a sample of cancer survivors, and measured both a psychosocial predictor at baseline and physical activity at a later time-point. Of 2,431 records located through computerized searches, 25 independent tests (N = 5,897) met the inclusion criteria for the review. Random effects meta-analyses and meta-analytic structural equation modeling were conducted., Results: Eight psychosocial predictors of physical activity were identified. Self-efficacy (r+ = 0.26) and intentions (r+ = 0.33) were the strongest predictors in bivariate analyses. The structural equation models included attitudes, injunctive norms, self-efficacy, intentions, and physical activity (k = 22, N = 4,385). The model with the best fit, χ2(2) = 0.11, p = .95, root mean square error of approximation = .00, comparative fit index = 1.00, Tucker-Lewis index = 1.00, indicated that all specified paths were significant. Intentions were the strongest predictor of physical activity (β = 0.27, p < .001), and attitudes and self-efficacy were strong predictors of intentions (both βs = 0.29, ps < .001). Few significant moderators were observed., Conclusion: This review indicates that self-efficacy and intentions are direct predictors of physical activity in cancer survivors. Further, attitudes and norms predict physical activity through intentions. Findings inform intervention development to increase physical activity engagement among cancer survivors. (PsycINFO Database Record (c) 2020 APA, all rights reserved).
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- 2020
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112. Muscle contributions to medial and lateral tibiofemoral compressive loads during sidestep cutting.
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Maniar N, Bryant AL, Sritharan P, Schache AG, and Opar DA
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- Adult, Biomechanical Phenomena, Compressive Strength, Humans, Male, Pressure, Walking physiology, Weight-Bearing, Femur physiology, Muscle, Skeletal physiology, Tibia physiology
- Abstract
The tibiofemoral compressive forces experienced during functional activities are believed to be important for maintaining tibiofemoral stability. Previous studies have shown that both knee-spanning and non-knee-spanning muscles contribute to tibiofemoral joint compressive forces during walking. However, healthy individuals typically engage in more vigorous activities (e.g. jumping and cutting) that provide greater challenges to tibiofemoral stability. Despite this, no previous studies have investigated how both knee-spanning and non-knee-spanning muscles contribute to tibiofemoral compressive loading during such tasks. The present study investigated how muscles contributed to the medial and lateral compartment tibiofemoral compressive forces during sidestep cutting. Three-dimensional marker trajectories, ground reaction forces and muscle electromyographic signals were collected from eight healthy males whilst they completed unanticipated sidestep cutting. OpenSim was used to perform musculoskeletal simulations to compute the contribution of each lower-limb muscle to compressive loading of each compartment of the knee. The greatest contributors to medial compartment loading were the vasti, gluteus maximus and medius, and the medial gastrocnemius. The greatest contributors to lateral compartment loading were the vasti, adductors, medial and lateral gastrocnemius, and the soleus. The soleus displayed the greatest potential for unloading the medial compartment, whereas the gluteus maximus and medius displayed the greatest potential for unloading the lateral compartment. These findings may help to inform interventions aiming to modulate compressive loading at the knee., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2020 Elsevier Ltd. All rights reserved.)
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- 2020
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113. Pilot randomized trial of an electronic symptom monitoring and reporting intervention for hospitalized adults undergoing hematopoietic stem cell transplantation.
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Bryant AL, Coffman E, Phillips B, Tan X, Bullard E, Hirschey R, Bradley J, Bennett AV, Stover AM, Song L, Shea TC, and Wood WA
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- Adolescent, Adult, Aged, Female, Health Services, Hospitalization, Humans, Inpatients, Male, Middle Aged, Pilot Projects, Prospective Studies, Young Adult, Hematopoietic Stem Cell Transplantation adverse effects, Patient Reported Outcome Measures, Transplantation Conditioning adverse effects
- Abstract
Purpose: Patients undergoing a hematopoietic stem cell transplantation (HCT) have varied symptoms during their hospitalization. This study examined whether daily symptom reporting (with electronic patient-reported outcomes [PROs]) in an inpatient bone marrow transplant clinic reduced symptom burden on post-transplant days +7, +10, and +14., Methods: A prospective, single-institution 1:1 pilot randomized, two-arm study recruited HCT patients. HCT inpatients (N = 76) reported daily on 16 common symptoms using the PRO version of the Common Terminology for Adverse Events (PRO-CTCAE). Fisher's exact test was used to examine differences in the proportion of patients reporting individual symptoms. Multivariable linear regression modeling was used to examine group differences in peak symptom burden, while controlling for symptom burden at baseline, age, comorbidity, and transplantation type (autologous or allogeneic)., Results: HCT patients receiving the PRO intervention also experienced lower peak symptom burden (average of 16 symptoms) at days +7, +10, and +14 (10.4 vs 14.5, p = 0.03)., Conclusions: Daily use of electronic symptom reporting to nurses in an inpatient bone marrow transplant clinic reduced peak symptom burden and improved individual symptoms during the 2 weeks post-transplant. A multi-site trial is warranted to demonstrate the generalizability, efficacy, and value of this intervention., Trial Registration: ClinicalTrials.gov identifier: NCT02574897.
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- 2020
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114. Modelling the loading mechanics of anterior cruciate ligament.
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Nasseri A, Khataee H, Bryant AL, Lloyd DG, and Saxby DJ
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- Adult, Anterior Cruciate Ligament Injuries prevention & control, Cadaver, Female, Humans, Male, Middle Aged, Young Adult, Anterior Cruciate Ligament physiology, Anterior Cruciate Ligament Injuries physiopathology, Biomechanical Phenomena, Computer Simulation
- Abstract
Background and Objectives: The anterior cruciate ligament (ACL) plays a crucial role in knee stability and is the most commonly injured knee ligament. Although ACL loading patterns have been investigated previously, the interactions between knee loadings transmitted to ACL remain elusive. Understanding the loading mechanism of ACL during dynamic tasks is essential to prevent ACL injuries. Therefore, we propose a computational model that predicts the force applied to ACL in response to knee loading in three planes of motion., Methods: First, a three-dimensional (3D) computational model was developed and validated using available cadaveric experimental data to predict ACL force. This 3D model was then combined with a neuromusculoskeletal model of lower limb and used to estimate in vivo ACL forces during a standardised drop-landing task. The neuromusculoskeletal model utilised movement data collected from female participants during a dynamic task and calculated lower limb joint kinematics and kinetics, as well as muscle forces., Results: The total ACL force predicted by the 3D computational ACL force model was in good agreement with cadaveric data, as strong correlation (r
2 = 0.96 and P < 0.001), minimal bias, and narrow limits of agreement were observed. The combined model further illustrated that the ACL is primarily loaded through the sagittal plane, mainly due to muscle loading., Conclusions: The proposed computational model is the first validated model that can provide an accessible tool to develop and test knee ACL injury prevention programs for people with normal ACL. This method can be extended to study the abnormal ACL upon the availability of relevant experimental data., Competing Interests: Declaration of competing interest The authors declare no competing interests., (Copyright © 2019 Elsevier B.V. All rights reserved.)- Published
- 2020
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115. Running-related muscle activation patterns and tibial acceleration across puberty.
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Sayer TA, Hinman RS, Paterson KL, Bennell KL, Hall M, Allison K, and Bryant AL
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- Adolescent, Female, Humans, Muscle, Skeletal growth & development, Muscle Contraction, Muscle, Skeletal physiology, Running physiology, Sexual Maturation
- Abstract
This study examined whether differences exist in tibial acceleration transients and electromyography (EMG) variables during running across female pubertal development. Sixty-four girls classified as pre- (n = 19), early/mid- (n = 22) and late/post-pubertal development (n = 23) ran in a laboratory whilst EMG data were recorded from quadriceps, hamstring and calf muscle groups, and acceleration transients from a triaxial accelerometer. The late/post-pubertal girls exhibited delayed vastus lateralis onset (mean difference (MD) = 0.02, 95% CI = 0.008, 0.34 ms)) compared to pre-pubertal girls, lower vastus lateralis pre-activation (MD = 7.02, 95% CI = 12.63, 1.42%) compared to early/mid-pubertal girls, and longer time to peak (TTP) anterior/posterior (A/P) tibial acceleration compared to pre-pubertal girls (MD = 0.02, 95% CI = 0.006, 0.03 s). By contrast, late/post-pubertal girls demonstrated earlier semitendinosus onset compared to both early/mid- (MD = 0.02, 95% CI = 0.03, 0.005 ms) and pre-pubertal girls (MD = 0.02, 95% CI = 0.04, 0.007 ms). No other between-group differences were found for peak A/P, vertical and TTP vertical tibial acceleration (p > 0.05). Subsequently, regression analysis revealed that EMG variables accounted for approximately 34% (R
2 = 0.34) of the variance in TTP A/P tibial acceleration. These findings highlight that neuromuscular recruitment patterns and kinetics differ across female pubertal development while running and should be further explored in the context of adolescent female musculoskeletal injuries., Competing Interests: Declaration of Competing Interest All authors declare no conflict of interest and at no stage did any of funding organizations influence study design, data collection or analysis of results., (Copyright © 2019 Elsevier Ltd. All rights reserved.)- Published
- 2020
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116. Health-related quality of life among non-muscle-invasive bladder cancer survivors: a population-based study.
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Jung A, Nielsen ME, Crandell JL, Palmer MH, Smith SK, Bryant AL, and Mayer DK
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- Adult, Aged, Aged, 80 and over, Cancer Survivors, Cross-Sectional Studies, Diagnostic Self Evaluation, Female, Humans, Male, Middle Aged, Neoplasm Invasiveness, North Carolina, Prospective Studies, Quality of Life, Urinary Bladder Neoplasms pathology, Urinary Bladder Neoplasms therapy
- Abstract
Objective: To examine the effect of non-muscle-invasive bladder cancer (NMIBC) diagnosis and treatment on survivors' quality of life (QoL)., Patients and Methods: Of the 5979 patients with NMIBC diagnosed between 2010 and 2014 in North Carolina, 2000 patients were randomly selected to be invited to enroll in this cross-sectional study. Data were collected by postal mail survey. The European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Core (QLQ-C30) and the NMIBC-specific module were included in the survey to measure QoL. Descriptive statistics, t-tests, anova, and Pearson's correlation were used to describe demographics and to assess how QoL varied by sex, cancer stage, time since diagnosis, and treatment., Results: A total of 398 survivors returned questionnaires (response rate: 23.6%). The mean QoL score for QLQ-C30 (range 0-100, higher = better QoL in all domains but symptoms) for global health status was 73.6, function domain scores ranged from 83.9 to 86.5, and scores for the top five symptoms (insomnia, fatigue, dyspnoea, pain, and financial difficulties) ranged from 14.1 to 24.3. The lowest NMIBC-specific QoL domain was sexual issues including sexual function, enjoyment, problems, and intimacy. Women had worse bowel problems, sexual function, and sexual enjoyment than men but better sexual intimacy and fewer concerns about contaminating their partner. Stage Ta had the highest global health status, followed by T1 and Tis. QoL did not vary by time since diagnosis except for sexual function. The cystectomy group (n = 21) had worse QoL in sexual function, discomfort with sexual intimacy, sexual enjoyment, and male sexual problems than the non-cystectomy group (n = 336)., Conclusion: Survivors of NMIBC face a unique burden associated with their diagnosis and the often-lifelong surveillance and treatment regimens. The finding has important implications for the design of tailored supportive care interventions to improve QoL for NMIBC survivors., (© 2019 The Authors BJU International © 2019 BJU International Published by John Wiley & Sons Ltd.)
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- 2020
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117. Utilizing courageous dialogue to support minority and disadvantaged background nursing students.
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Johnson TM, Bryant AL, Brooks J, Santos H, Jenerette C, Lynn MR, and Rodgers S
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- Achievement, Education, Nursing, Baccalaureate, Humans, Learning, Communication, Ethnicity psychology, Mentors, Minority Groups psychology, Social Support, Students, Nursing psychology
- Abstract
Background: Nursing students from historically underrepresented ethnic minorities and disadvantaged background (HUREM-DB) groups often face barriers such as a lack of consistent financial resources, fewer professional role models, bias, and micro-inequities. Utilizing a multifaceted approach for support can be crucial to enhancing student success., Purpose of the Project: MENTORS
2 mitigates some of the challenges for HUREM-DB nursing students with educational, cultural, social, and financial resources. Courageous dialogue (CD) was one required activity of MENTORS2 and included topics such as stress management, time management, and honors project preparation., Implementation of the Project: Courageous dialogue sessions were conducted with 56 HUREM-DB undergraduate nursing students enrolled in a baccalaureate program. The number of evaluations submitted for a session averaged 17 (range 7-36). Courageous dialogue sessions allowed students to express views in a safe environment with opportunities for peer support, role modeling, open discussion, and problem solving., Project Outcomes: Student evaluations reflected an appreciation of the opportunity to share experiences and learn new skills, knowledge, and approaches to aid their success in nursing school and perhaps their entry into the profession of nursing., Conclusion: Courageous dialogue can be an important part of a comprehensive strategy to support HUREM-DB nursing students academically, socially, and professionally., (Copyright © 2019 Elsevier Inc. All rights reserved.)- Published
- 2020
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118. Psychological and Financial Distress Management in Adults With Acute Leukemia.
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Albrecht TA and Bryant AL
- Subjects
- Adaptation, Psychological, Adult, Female, Humans, Male, Palliative Care methods, Cost of Illness, Leukemia, Myeloid, Acute nursing, Leukemia, Myeloid, Acute psychology, Nurse's Role, Nursing Staff, Hospital psychology, Oncology Nursing methods
- Abstract
Objectives: To review and summarize psychological and financial distress in adults with acute leukemia and provide evidence-based methods that nurses can apply to alleviate distress experienced by patients., Data Sources: Oncology and palliative care literature published over the past decade., Conclusion: Current evidence supports the efficacy of psychosocial interventions to improve psychological well-being and reduce distress for adults undergoing treatment for leukemia., Implications for Nursing Practice: Nurses play a critical role, not only in identifying patients who are experiencing impaired psychological well-being and high levels of distress, but also in providing prompt support to these patients., (Copyright © 2019 Elsevier Inc. All rights reserved.)
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- 2019
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119. Introduction.
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Bryant AL and LeBlanc TW
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- Humans, Oncology Nursing methods, Leukemia nursing, Oncology Nursing organization & administration, Patient Care Planning organization & administration
- Published
- 2019
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120. Research Agenda of the Oncology Nursing Society: 2019-2022.
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Von Ah D, Brown CG, Brown SJ, Bryant AL, Davies M, Dodd M, Ferrell B, Hammer M, Knobf MT, Knoop TJ, LoBiondo-Wood G, Mayer DK, Miaskowski C, Mitchell SA, Song L, Watkins Bruner D, Wesmiller S, and Cooley ME
- Subjects
- Humans, Surveys and Questionnaires, United States, Nursing Research organization & administration, Oncology Nursing organization & administration, Organizational Objectives, Research Design trends, Societies, Nursing organization & administration
- Abstract
Problem Statement: To define the Oncology Nursing Society Research Agenda for 2019-2022., Design: Multimethod, consensus-building approach by members of the Research Agenda Project Team., Data Sources: Expert opinion, literature review, surveys, interviews, focus groups, town hall, and review of research priorities from other cancer care organizations and funding agencies., Analysis: Content analysis and descriptive statistics were used to synthesize research priority themes that emerged., Findings: Three priority areas for scientific development were identified., Implications for Nursing: The Research Agenda can be used to focus oncology nurses' research, scholarship, leadership, and health policy efforts to advance quality cancer care, inform research funding priorities, and align initiatives and resources across the ONS enterprise.
- Published
- 2019
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121. Catalyzing Research to Optimize Cancer Survivors' Participation in Work and Life Roles.
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Newman RM, Alfano CM, Radomski MV, Pergolotti M, Wolf TJ, Sleight AG, Bryant AL, Voelbel GT, de Moor JS, Nitkin R, Daniels E, Braveman B, Walker RK, Williams GR, Winters-Stone KM, Cheville AL, Campbell SE, Lawlor MC, King AA, Ness KK, Srivastava P, and Lyons KD
- Subjects
- Activities of Daily Living, Humans, Quality of Life, Research Design, Cancer Survivors, Occupational Therapy
- Abstract
Participation refers to a state of health in which a person is able to fully engage in roles and life situations. Adults living with and beyond cancer often report persistent participation restrictions that affect their productivity and quality of life. The American Occupational Therapy Foundation convened a group of scientists from seven different disciplines in a Planning Grant Collective (PGC) to stimulate research to identify scalable ways to preserve and optimize participation among cancer survivors. Participants identified challenges, prioritized solutions, and generated novel research questions that move beyond symptom and impairment mitigation as outcomes to identify interventions that improve participation in roles and life situations. This article summarizes the PGC discussion and recommendations regarding three challenges: (a) the dynamic and multi-faceted nature of participation, (b) a need to integrate the concept of participation within the culture of oncology, and (c) identification of priority areas in which new lines of research regarding participation would be most impactful.
- Published
- 2019
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122. Tibiofemoral joint structural change from 2.5 to 4.5 years following ACL reconstruction with and without combined meniscal pathology.
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Wang X, Bennell KL, Wang Y, Wrigley TV, Van Ginckel A, Fortin K, Saxby DJ, Cicuttini FM, Lloyd DG, Vertullo CJ, Feller JA, Whitehead T, Gallie P, and Bryant AL
- Subjects
- Adult, Anterior Cruciate Ligament Injuries complications, Bone Marrow diagnostic imaging, Bone Marrow pathology, Cartilage, Articular diagnostic imaging, Cartilage, Articular pathology, Female, Humans, Knee Joint diagnostic imaging, Knee Joint pathology, Longitudinal Studies, Magnetic Resonance Imaging, Male, Osteoarthritis, Knee etiology, Osteoarthritis, Knee pathology, Postoperative Complications etiology, Postoperative Complications pathology, Tibia diagnostic imaging, Tibia pathology, Tibial Meniscus Injuries complications, Time Factors, Young Adult, Anterior Cruciate Ligament Injuries surgery, Anterior Cruciate Ligament Reconstruction adverse effects, Arthroscopy adverse effects, Osteoarthritis, Knee epidemiology, Postoperative Complications epidemiology, Tibial Meniscus Injuries surgery
- Abstract
Background: People who have had anterior cruciate ligament reconstruction (ACLR) are at a high risk of developing tibiofemoral joint (TFJ) osteoarthritis (OA), with concomitant meniscal injury elevating this risk. This study aimed to investigate OA-related morphological change over 2 years in the TFJ among individuals who have undergone ACLR with or without concomitant meniscal pathology and in healthy controls. A secondary aim was to examine associations of baseline TFJ cartilage defects and bone marrow lesions (BML) scores with tibial cartilage volume change in ACLR groups., Methods: Fifty seven ACLR participants aged 18-40 years (32 isolated ACLR, 25 combined meniscal pathology) underwent knee magnetic resonance imaging (MRI) 2.5 and 4.5 years post-surgery. Nine healthy controls underwent knee MRI at the ~ 2-year intervals. Tibial cartilage volume, TFJ cartilage defects and BMLs were assessed from MRI., Results: For both ACLR groups, medial and lateral tibial cartilage volume increased over 2 years (P < 0.05). Isolated ACLR group had greater annual percentage increase in lateral tibial cartilage volume compared with controls and with the combined group (P = 0.03). Cartilage defects remained unchanged across groups. Both ACLR groups showed more lateral tibia BML regression compared with controls (P = 0.04). Baseline cartilage defects score was positively associated with cartilage volume increase at lateral tibia (P = 0.002) while baseline BMLs score was inversely related to medial tibia cartilage volume increase (P = 0.001) in the pooled ACLR group., Conclusions: Tibial cartilage hypertrophy was apparent in ACLR knees from 2.5 to 4.5 years post-surgery and was partly dependent upon meniscal status together with the nature and location of the underlying pathology at baseline. Magnitude and direction of change in joint pathologies (i.e., cartilage defects, BMLs) were less predictable and either remained stable or improved over follow-up.
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- 2019
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123. Senior Sway: Using a Mobile Application to Measure Fall Risk.
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Pergolotti M, Deal AM, Bryant AL, Bennett AV, Farley E, Covington K, Lucas K, and Williams GR
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- Aged, Aged, 80 and over, Exercise Test, Female, Humans, Independent Living, Male, Middle Aged, Reaction Time, Risk Assessment methods, Accidental Falls, Mobile Applications, Postural Balance
- Abstract
Background and Purpose: The Senior Sway mobile application uses the iPhone/iPad gyroscope to assess postural sway and motion reaction time. Impairment in postural sway and motion reaction time have the potential to increase risk for future falls. Senior Sway thereby has the potential to provide a quick, easy to use, objective measure for predicting falls in older adults. The purpose of this study was to evaluate the feasibility of the Senior Sway mobile application and its associations with fall risk in community-dwelling older adults., Methods: Adults older than 62 years were recruited from senior centers and community events. Descriptive and bivariate statistics were used to examine feasibility on the basis of enrollment, time required, satisfaction with application, and association with fall risk., Results and Discussion: Fifty-seven adults were recruited. Use of the Senior Sway mobile application was feasible. Ninety-one percent said that they liked the application and reported length of time of assessment was "just right." The average Senior Sway score was 64.0 (range: 47.8-84.0), which was significantly associated with the 30-second sit-to-stand test. In addition, the motor reaction time score was associated with the Timed Up and Go., Conclusions: Senior Sway is a promising application to improve identification of adults at risk for falls and need for rehabilitation but warrants further research.
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- 2019
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124. Hyperglycemia and Cancer: A State-of-the-Science Review.
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Hammer M, Storey S, Hershey DS, Brady VJ, Davis E, Mandolfo N, Bryant AL, and Olausson J
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- Adult, Aged, Aged, 80 and over, Female, Humans, Hyperglycemia epidemiology, Male, Middle Aged, Neoplasms epidemiology, Comorbidity, Hyperglycemia drug therapy, Hyperglycemia etiology, Hyperglycemia physiopathology, Neoplasms complications, Neoplasms physiopathology
- Abstract
Problem Identification: Hyperglycemia can increase the risk for adverse events and outcomes in patients undergoing treatment for cancer. The purposes of this state-of-the-science review were to explore the complexity of hyperglycemia in patients with cancer and to analyze physiologic mechanisms and outcomes in individuals with or at risk for cancer., Literature Search: PubMed® and the Cochrane Library databases were searched, and 95 articles were included. Findings were evaluated for their methods and analyses. Studies assessed as methodologically flawed were not included., Data Evaluation: The synthesis of the articles provided the evidence for describing normal and glycemic pathways. Hyperglycemia in patients with cancer was explored through chronic inflammatory mechanisms that lead to increased risks for adverse events and outcomes., Synthesis: This article discusses normal glucose regulation and hyperglycemic pathways, hyperglycemia in patients with cancer, hyperglycemia and cancer-related inflammation, and outcomes (e.g., infections, mortality, symptoms)., Implications for Research: Understanding the contributors to and consequences of hyperglycemia can guide the development of screening tools to predict which individuals are at the greatest risk for hyperglycemic episodes prior to starting cancer therapies. Research can lead to glycemic guidelines specific to patients with cancer for better outcomes.
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- 2019
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125. Older Adults with Cancer: A Randomized Controlled Trial of Occupational and Physical Therapy.
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Pergolotti M, Deal AM, Williams GR, Bryant AL, McCarthy L, Nyrop KA, Covington KR, Reeve BB, Basch E, and Muss HB
- Subjects
- Aged, Aged, 80 and over, Female, Humans, Incidence, Male, Neoplasm Recurrence, Local epidemiology, Neoplasms physiopathology, Treatment Outcome, United States epidemiology, Exercise physiology, Geriatric Assessment methods, Health Status, Neoplasms rehabilitation, Occupational Therapy methods, Physical Therapy Modalities
- Abstract
Objectives: The impact of occupational therapy (OT) and physical therapy (PT) on functional outcomes in older adults with cancer is unknown., Design: Two-arm single-institution randomized controlled trial of outpatient OT/PT., Setting: Comprehensive cancer center with two off-site OT/PT clinics., Participants: We recruited adults 65 years and older with a recent diagnosis or recurrence of cancer within 5 years, with at least one functional limitation as identified by a geriatric assessment. Participants were randomized to OT/PT or usual care., Intervention: Rehabilitation consisted of individualized OT and PT that addressed functional activities and strength/endurance needs., Measurements: Primary outcome was functional status as measured by the Nottingham Extended Activities of Daily Living scale. Secondary outcomes were Patient-Reported Outcomes Measurement Information System-Global Mental Health (GMH) and Global Physical Health (GPH), ability to participate in Social Roles (SR), physical function, and activity expectations and self-efficacy (Possibilities for Activity Scale [PActS])., Results: Among those recruited (N = 63), only 45 patients (71%) were evaluable due to loss of follow-up and/or nonreceipt of intervention. The median age was 74 years; 53% were female, and 91% were white. Overall, 30% patients had hematologic malignancies, 30% breast cancer, and 16% colorectal cancers. A total of 65% were in active treatment; 49% had stage 3 or 4 disease. At follow-up, both OT/PT (P = .02) and usual care (P = .03) groups experienced a decline in functional status. PActS scores between groups (P = .04) was significantly improved in the intervention group. GMH and SR met criteria for minimally important clinical difference favoring the intervention, but not statistical significance. Several barriers were noted in the implementation of the intervention program: recruitment, concerns about cost, distance, scheduling, and limited treatment provided., Conclusion: OT/PT may positively influence activity expectations and self-efficacy. Future research needs to address significant barriers to implementation to increase use of OT/PT services and access to quality care. J Am Geriatr Soc 67:953-960, 2019., (© 2019 The American Geriatrics Society.)
- Published
- 2019
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126. Deficits in Quadriceps Force Control After Anterior Cruciate Ligament Injury: Potential Central Mechanisms.
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Ward SH, Perraton L, Bennell K, Pietrosimone B, and Bryant AL
- Subjects
- Adult, Cross-Sectional Studies, Electromyography methods, Female, Humans, Male, Psychomotor Performance physiology, Transcranial Magnetic Stimulation methods, Adaptation, Physiological physiology, Anterior Cruciate Ligament Injuries physiopathology, Anterior Cruciate Ligament Injuries rehabilitation, Brain diagnostic imaging, Brain physiology, Quadriceps Muscle physiopathology
- Abstract
Context: Poor quadriceps force control has been observed after anterior cruciate ligament (ACL) reconstruction but has not been examined after ACL injury. Whether adaptations within the central nervous system are contributing to these impairments is unknown., Objective: To examine quadriceps force control in individuals who had sustained a recent ACL injury and determine the associations between cortical excitability and quadriceps force control in these individuals., Design: Cross-sectional study., Setting: Research laboratory., Patients or Other Participants: Eighteen individuals with a recent unilateral ACL injury (6 women, 12 men; age = 29.6 ± 8.4 years, height = 1.74 ± 0.07 m, mass = 76.0 ± 10.4 kg, time postinjury = 69.5 ± 42.5 days) and 18 uninjured individuals (6 women, 12 men; age = 29.2 ± 6.8 years, height = 1.79 ± 0.07 m, mass = 79.0 ± 8.4 kg) serving as controls participated., Main Outcome Measure(s): Quadriceps force control was quantified as the root mean square error between the quadriceps force and target force during a cyclical force-matching task. Cortical excitability was measured as the active motor threshold and cortical silent period. Outcome measures were determined bilaterally in a single testing session. Group and limb differences in quadriceps force control were assessed using mixed analyses of variance (2 × 2). Pearson product moment correlations were performed between quadriceps force control and cortical excitability in individuals with an ACL injury., Results: Individuals with an ACL injury exhibited greater total force-matching error with their involved (standardized mean difference [SMD] = 0.8) and uninvolved (SMD = 0.9) limbs than did controls ( F
1,27 = 11.347, P = .03). During the period of descending force, individuals with an ACL injury demonstrated greater error using their involved (SMD = 0.8) and uninvolved (SMD = 0.8) limbs than uninjured individuals ( F1,27 = 4.941, P = .04). Greater force-matching error was not associated with any cortical excitability measures ( P > .05)., Conclusions: Quadriceps force control was impaired bilaterally after recent ACL injury but was not associated with selected measures of cortical excitability. The findings highlight a need to incorporate submaximal-force control tasks into rehabilitation and "prehabilitation," as the deficits were present before surgery.- Published
- 2019
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127. Quality of Life in Non-Muscle-Invasive Bladder Cancer Survivors: A Systematic Review.
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Jung A, Nielsen ME, Crandell JL, Palmer MH, Bryant AL, Smith SK, and Mayer DK
- Subjects
- Humans, Randomized Controlled Trials as Topic, Cancer Survivors, Quality of Life, Urinary Bladder Neoplasms therapy
- Abstract
Background: Non-muscle-invasive bladder cancer (NMIBC) represents approximately 75% of newly diagnosed patients with bladder cancer. Non-muscle-invasive bladder cancer survivors have unique chronic burdens including frequent recurrences, repeated surveillance cystoscopies and treatments, and the highest lifetime medical cost per person among all cancers., Objective: The purpose of this study was to summarize studies assessing quality of life (QOL) in NMIBC survivors., Methods: The literature from January 2005 to March 2017 found in PubMed, CINAHL, and PsycINFO databases was reviewed systematically. Inclusion criteria were as follows: (1) research about NMIBC survivors, (2) outcomes included QOL, (3) original research article published in peer-reviewed journals, and (4) published in English., Results: A total of 15 studies were included: 14 quantitative studies and 1 mixed-methods study. Non-muscle-invasive bladder cancer survivors had significantly lower QOL compared with the general population, especially in fatigue, physical and role functioning, and mental health. Repeated transurethral resections and intravesical treatments were associated with impaired physical function and mental health. Most NMIBC survivors had concerns of urinary and bowel problems and sexual function., Conclusion: Despite a good prognosis, NMIBC and its treatment have a significant impact on QOL in survivors. The findings showed large burdens in NMIBC survivors and suggest that further research is needed to better understand potential opportunities to improve QOL in this population., Implications for Practice: Oncology nurses are in the critical position for assessing symptoms and concerns. Oncology nurses should pay special attention to NMIBC survivors who have unique symptoms and burden with the aim of improving survivors' QOL.
- Published
- 2019
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128. Best practices and inclusion of team science principles in appointment promotion and tenure documents in research intensive schools of nursing.
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Brody AA, Bryant AL, Perez GA, and Bailey DE
- Subjects
- Benchmarking, Humans, Practice Guidelines as Topic, Qualitative Research, United States, Career Mobility, Education, Nursing, Nursing Research
- Abstract
Background: Nurse scientists are highly sought after and find satisfaction in serving as members of interdisciplinary research teams. These teams also tend to be highly productive. However, nurse scientists in academia also have to reach certain productivity milestones to be promoted and receive tenure that may be incongruent with team science principles., Purpose: This study therefore sought to examine whether APT documents in research intensive nursing schools incorporate team science principles., Methods: Qualitatively analyzed the appointment, promotion and tenure documents of 18 U.S. based research intensive schools of nursing with over $2 million in NIH funding in fiscal year 2014., Findings: The study found that only 8 of 18 documents included any reference to team science principles and even these mentions were largely negligible. There were few best practices to recommend across documents. By not recognizing team science within these documents, nursing risks marginalization within the larger scientific community by limiting mentorship and learning opportunities for early career nurse scientists., Discussion: Schools of nursing should revisit their promotion and tenure criteria and include a greater commitment to encouragement of team science., (Published by Elsevier Inc.)
- Published
- 2019
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129. Greater magnitude tibiofemoral contact forces are associated with reduced prevalence of osteochondral pathologies 2-3 years following anterior cruciate ligament reconstruction.
- Author
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Saxby DJ, Bryant AL, Van Ginckel A, Wang Y, Wang X, Modenese L, Gerus P, Konrath JM, Fortin K, Wrigley TV, Bennell KL, Cicuttini FM, Vertullo C, Feller JA, Whitehead T, Gallie P, and Lloyd DG
- Subjects
- Adult, Biomechanical Phenomena physiology, Bone Marrow physiopathology, Cross-Sectional Studies, Female, Gait physiology, Humans, Knee Injuries surgery, Logistic Models, Magnetic Resonance Imaging, Male, Osteonecrosis pathology, Prevalence, Tibial Meniscus Injuries surgery, Victoria epidemiology, Young Adult, Anterior Cruciate Ligament Injuries surgery, Anterior Cruciate Ligament Reconstruction, Osteonecrosis epidemiology
- Abstract
Purpose: External loading of osteoarthritic and healthy knees correlates with current and future osteochondral tissue state. These relationships have not been examined following anterior cruciate ligament reconstruction. We hypothesised greater magnitude tibiofemoral contact forces were related to increased prevalence of osteochondral pathologies, and these relationships were exacerbated by concomitant meniscal injury., Methods: This was a cross-sectional study of 100 individuals (29.7 ± 6.5 years, 78.1 ± 14.4 kg) examined 2-3 years following hamstring tendon anterior cruciate ligament reconstruction. Thirty-eight participants had concurrent meniscal pathology (30.6 ± 6.6 years, 83.3 ± 14.3 kg), which included treated and untreated meniscal injury, and 62 participants (29.8 ± 6.4 years, 74.9 ± 13.3 kg) were free of meniscal pathology. Magnetic resonance imaging of reconstructed knees was used to assess prevalence of tibiofemoral osteochondral pathologies (i.e., cartilage defects and bone marrow lesions). A calibrated electromyogram-driven neuromusculoskeletal model was used to predict medial and lateral tibiofemoral compartment contact forces from gait analysis data. Relationships between contact forces and osteochondral pathology prevalence were assessed using logistic regression models., Results: In patients with reconstructed knees free from meniscal pathology, greater medial contact forces were related to reduced prevalence of medial cartilage defects (odds ratio (OR) = 0.7, Wald χ
2 (2) = 7.9, 95% confidence interval (CI) = 0.50-95, p = 0.02) and medial bone marrow lesions (OR = 0.8, Wald χ2 (2) = 4.2, 95% CI = 0.7-0.99, p = 0.04). No significant relationships were found in lateral compartments. In reconstructed knees with concurrent meniscal pathology, no relationships were found between contact forces and osteochondral pathologies., Conclusions: In patients with reconstructed knees free from meniscal pathology, increased contact forces were associated with fewer cartilage defects and bone marrow lesions in medial, but not, lateral tibiofemoral compartments. No significant relationships were found between contact forces and osteochondral pathologies in reconstructed knees with meniscal pathology for any tibiofemoral compartment. Future studies should focus on determining longitudinal effects of contact forces and changes in osteochondral pathologies., Level of Evidence: IV.- Published
- 2019
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130. Greater knee flexion excursion/moment in hopping is associated with better knee function following anterior cruciate ligament reconstruction.
- Author
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Perraton LG, Clark RA, Crossley KM, Pua YH, Whitehead TS, Morris HG, Culvenor AG, and Bryant AL
- Subjects
- Adult, Anterior Cruciate Ligament Reconstruction, Biomechanical Phenomena, Cross-Sectional Studies, Female, Humans, Male, Postoperative Complications physiopathology, Range of Motion, Articular, Young Adult, Anterior Cruciate Ligament Injuries surgery, Joint Instability physiopathology, Movement, Osteoarthritis, Knee physiopathology
- Abstract
Purpose: Individuals with impaired knee function after anterior cruciate ligament reconstruction (ACLR) may be at greater risk of developing knee osteoarthritis related to abnormal knee joint movement and loading. The aim of this study was to assess the association between knee biomechanics and knee laxity during hopping and clinically assessed knee function (i.e., patient-reported knee function and hop tests) following ACLR., Methods: Sixty-six participants (23 women, mean age 28 ± 6 years, mean 18 ± 3 months following ACLR) completed a standardized single-leg hopping task. Three-dimensional movement analysis was used to assess knee flexion excursion and body weight/height normalized knee flexion moments during landing for the involved limb. Anterior-posterior knee laxity was assessed with a KT-1000 knee arthrometer. Participants then completed a patient-reported knee function questionnaire and three separate hop tests (% of uninvolved limb) and were divided into poor and satisfactory knee function groups (satisfactory: ≥85% patient-reported knee function and ≥ 85% hop test symmetry). Associations between knee function and hop biomechanics/knee laxity were assessed using logistic regression and interquartile range scaled odds ratios (OR
IQR )., Results: Greater knee flexion excursion (ORIQR 2.9, 95%CI 1.1-7.8), greater knee flexion moment (ORIQR 4.9, 95%CI 1.6-14.3) and lesser knee laxity (ORIQR 4.7, 95%CI 1.5-14.9) were significantly associated with greater odds of having satisfactory knee function (≥ 85% patient-reported knee function and ≥ 85% hop test symmetry)., Conclusion: Greater knee flexion excursion/moment during hop-landing and lesser knee laxity is associated with better patient-reported knee function and single-leg hop test performance following ACLR. Patients with lower levels of knee function following ACLR demonstrated hop-landing biomechanics previously associated with early patellofemoral osteoarthritis. Therefore, interventions aimed at improving hop landing biomechanics in people with poor knee function are likely required., Level of Evidence: III, Cross-sectional study.- Published
- 2019
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131. Differences and mechanisms underpinning a change in the knee flexion moment while running in stability and neutral footwear among young females.
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Sayer TA, Hinman RS, Paterson KL, Bennell KL, Fortin K, Kasza J, and Bryant AL
- Subjects
- Adolescent, Adult, Ankle Joint physiology, Biomechanical Phenomena physiology, Child, Female, Hip Joint physiology, Humans, Range of Motion, Articular physiology, Young Adult, Knee Joint physiology, Running physiology, Shoes
- Abstract
Background: Higher peak external knee flexion moments (KFM) during running has been observed in healthy people wearing athletic footwear compared to barefoot, which may increase risk of knee pathologies such as patellofemoral pain. Currently, no studies have examined whether stability and neutral style athletic shoes influence the peak KFM differently, or explored the underlying biomechanical mechanisms by which footwear alters peak KFM in young females., Methods: Lower limb biomechanics of sixty girls aged between 10 and 25 years old were collected while running in footwear (both stability and neutral) and barefoot. The external peak KFM, sagittal plane kinematics, sagittal plane knee ground reaction force (GRF) lever arm and sagittal plane resultant GRF magnitude were analysed by repeated measures Analysis of Variance. Linear mixed models were fit to identify predictors of a change in peak KFM, and to determine if the effects of these predictors differed between footwear conditions., Results: The peak KFM was higher wearing both shoe styles compared to barefoot ( p < 0.001), while no between-shoe differences were found ( p > 0.05). Both shoes also increased kinematic variables at the hip, knee, and ankle ( p < 0.05) . When all these variables were entered into the mixed model, only a change in the knee-GRF lever arm was predictive of a change in peak KFM wearing shoes compared to barefoot ( p < 0.001)., Conclusion: These findings provide evidence that stability and neutral shoes increase peak KFM compared to barefoot, which is associated with a change in the knee-GRF lever arm rather than a change in lower limb kinematics. Future studies may consider manipulating footwear characteristics to reduce the knee-GRF lever arm in an effort to reduce peak KFM and the potential risk of patellofemoral pain., Competing Interests: All participants, together with parents/guardians of those < 18 years of age, signed an informed consent form. Ethics approval was obtained by the University of Melbourne Human Research Ethics Committee (#1442604).Not applicableThis project was conducted in collaboration with our industry partner Asics Oceania. None of the authors receive any financial benefit from the results of this study or from the manufacturer external to this study. All research procedures were conducted independently, without Asics Oceania involvement. We declare that the results of this study are without fabrication, falsification, or inappropriate data manipulation.Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
- Published
- 2019
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132. Differences in Hip and Knee Landing Moments across Female Pubertal Development.
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Sayer TA, Hinman RS, Paterson KL, Bennell KL, Fortin K, Timmi A, Pivonka P, and Bryant AL
- Subjects
- Adolescent, Biomechanical Phenomena, Body Height, Body Mass Index, Child, Female, Humans, Rotation, Time and Motion Studies, Young Adult, Hip physiology, Knee physiology, Plyometric Exercise, Sexual Development physiology
- Abstract
Purpose: The higher prevalence of knee injuries among adolescent females may be related to female pubertal development. The aim of this study was to determine whether girls exhibit higher triplanar knee and hip moments with more advanced pubertal development during a single-limb landing., Methods: Lower-limb biomechanics of 93 females grouped according to prepubertal (n = 31), early/midpubertal (n = 31) and late/postpubertal (n = 31) development performed a single-limb drop lateral jump. Peak triplanar knee moments and hip moments at the time of peak knee moments were derived from a Vicon motion analysis system and concealed force plate. Joint moments were normalized to body mass (N·m·kg), height (N·m·kg·m) and body mass by height (N·m·kg·m). Between-group differences were analyzed using a one-way ANOVA with Pearson correlations used to explore relationships between joint moments and anthropometrics., Results: Girls at latter stages of puberty landed with higher triplanar knee moments and hip flexion moment at time of peak knee flexion moment when normalized separately to body mass and to height (P < 0.05). In contrast, hip internal rotation moments at time of peak knee internal rotation moment normalized to body mass and to body mass by height were lower in late/postpubertal girls compared to their early/midpubescent (P = 0.01) and prepubescent (P = 0.01) counterparts. Positive correlations were identified between triplanar knee moments and body mass (r = 0.73-0.91, P < 0.001) and height (r = 0.61-0.89, P < 0.001) for all participants., Conclusions: Higher triplanar knee and sagittal plane hip moments with more advanced pubertal stage is attributed to growth-related increases in body mass and height. Given that growth is a crucial element of puberty, further research is required to quantify the impact of pubertal growth-related changes on risk of adolescent female anterior cruciate ligament injury.
- Published
- 2019
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133. Individual muscle contributions to tibiofemoral compressive articular loading during walking, running and sidestepping.
- Author
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Killen BA, Saxby DJ, Fortin K, Gardiner BS, Wrigley TV, Bryant AL, and Lloyd DG
- Subjects
- Adult, Biomechanical Phenomena, Female, Humans, Ligaments, Articular physiology, Male, Pressure, Quadriceps Muscle physiology, Young Adult, Activities of Daily Living, Gait, Knee Joint physiology, Muscle, Skeletal physiology, Running physiology, Walking physiology
- Abstract
The tibiofemoral joint (TFJ) experiences large compressive articular contact loads during activities of daily living, caused by inertial, ligamentous, capsular, and most significantly musculotendon loads. Comparisons of relative contributions of individual muscles to TFJ contact loading between walking and sporting movements have not been previously examined. The purpose of this study was to determine relative contributions of individual lower-limb muscles to compressive articular loading of the medial and lateral TFJ during walking, running, and sidestepping. The medial and lateral compartments of the TFJ were loaded by a combination of medial and lateral muscles. During all gait tasks, the primary muscles loading the medial and lateral TFJ were the vastus medialis (VM) and vastus lateralis (VL) respectively during weight acceptance, while typically the medial gastrocnemii (MG) and lateral gastrocnemii (LG) dominated medial and lateral TFJ loading respectively during midstance and push off. Generally, the contribution of the quadriceps muscles were higher in running compared to walking, whereas gastrocnemii contributions were higher in walking compared to running. When comparing running and sidestepping, contributions to medial TFJ contact loading were generally higher during sidestepping while contributions to lateral TFJ contact loading were generally lower. These results suggests that after orthopaedic procedures, the VM, VL, MG and LG should be of particular rehabilitation focus to restore TFJ stability during dynamic gait tasks., (Copyright © 2018 Elsevier Ltd. All rights reserved.)
- Published
- 2018
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134. Effect of high and low-supportive footwear on female tri-planar knee moments during single limb landing.
- Author
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Sayer TA, Hinman RS, Paterson KL, Bennell KL, Fortin K, and Bryant AL
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- Adolescent, Analysis of Variance, Biomechanical Phenomena physiology, Body Mass Index, Equipment Design, Female, Humans, Movement physiology, Knee Joint physiology, Shoes
- Abstract
Background: Higher landing-related external knee joint moments at later stages of female pubertal development likely contribute to a higher incidence of non-contact anterior cruciate ligament (ACL) injury. Athletic footwear may provide a potential strategy to alter higher knee moments., Methods: Thirty-one late/post-pubertal girls (Tanner stage IV-V, menarche and growth spurt attained) performed a single limb drop lateral jump in three footwear conditions (barefoot, low support shoes and high support shoes), in which peak knee abduction moment (KAbM), flexion moment (KFM) and internal rotation moments (KIRM) were measured. Repeated measures ANOVA and ANCOVA were used to test for a main effect of footwear with and without foot posture index (FPI) as a covariate ( p < 0.05) with post-hoc test carried out via Fisher's Least Significant Difference (LSD)., Results: A main effect of footwear condition was observed for peak KFM ( p < 0.05), but not KAbM or KIRM, in both unadjusted and adjusted models. Post-hoc analysis demonstrated that both high- and low-support shoes increased peak KFM compared with barefoot ( p < 0.001 )., Conclusion: Our findings indicate commercially available high- and low-supportive footwear increase peak KFM, but do not effect KAbM or KIRM while landing among late/post-pubertal girls. This suggests that these styles of footwear are inadequate at reducing higher knee moments in an at-risk cohort., Competing Interests: All participants, together with parents/guardians of those < 18 years of age, signed an informed consent form. Ethics approval was obtained by the University of Melbourne Human Research Ethics Committee (#1442604).Not applicable.This project was conducted in collaboration with our industry partner Asics Oceania. None of the authors receive any financial benefit from the results of this study or from the manufacturer external to this study. All research procedures were conducted independently, without Asics Oceania involvement. We declare that the results of this study are without fabrication, falsification, or inappropriate data manipulation.Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
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- 2018
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135. Accuracy of a novel marker tracking approach based on the low-cost Microsoft Kinect v2 sensor.
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Timmi A, Coates G, Fortin K, Ackland D, Bryant AL, Gordon I, and Pivonka P
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- Adult, Female, Humans, Male, Costs and Cost Analysis, Monitoring, Physiologic economics, Monitoring, Physiologic instrumentation, Movement, Software
- Abstract
Microsoft Kinect for Windows v2 is a motion analysis system that features a markerless human pose estimation algorithm. Given its affordability and portability, Kinect v2 has potential for use in biomechanical research and within clinical settings; however, recent studies suggest high inaccuracy of the markerless algorithm compared to marker-based motion capture systems. A novel tracking method was developed using Kinect v2, employing custom-made colored markers and computer vision techniques. The aim of this study was to test the accuracy of this approach relative to a conventional Vicon motion analysis system, performing a Bland-Altman analysis of agreement. Twenty participants were recruited, and markers placed on bony prominences near hip, knee and ankle. Three-dimensional coordinates of the markers were recorded during treadmill walking and running. The limits of agreement (LOA) of marker coordinates were narrower than - 10 and 10 mm in most conditions, however a negative relationship between accuracy and treadmill speed was observed along Kinect depth direction. LOA of the surrogate knee angles were within - 1.8°, 1.7° for flexion in all conditions and - 2.9°, 1.7° for adduction during fast walking. The proposed methodology exhibited good agreement with a marker-based system over a range of gait speeds and, for this reason, may be useful as low-cost motion analysis tool for selected biomechanical applications., (Copyright © 2018 IPEM. Published by Elsevier Ltd. All rights reserved.)
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- 2018
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136. A systematic review of patient reported outcomes in phase II or III clinical trials of myelodysplastic syndromes and acute myeloid leukemia.
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Bryant AL, Drier SW, Lee S, and Bennett AV
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- Antineoplastic Combined Chemotherapy Protocols adverse effects, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Bone Marrow Transplantation adverse effects, Bone Marrow Transplantation methods, Clinical Trials, Phase II as Topic, Clinical Trials, Phase III as Topic, Humans, Leukemia, Myeloid, Acute diagnosis, Myelodysplastic Syndromes diagnosis, Patient Reported Outcome Measures, Quality of Life, Leukemia, Myeloid, Acute therapy, Myelodysplastic Syndromes therapy
- Abstract
The purpose of this systematic literature review was to identify clinical trials of MDS and AML that included patient-reported outcome (PRO) instruments, and to summarize the symptom and other health related quality of life (HRQOL) concepts most frequently assessed and the PRO instruments that were used. Sixteen manuscripts describing 14 distinct trials met all criteria (i.e., phase 2 or 3 clinical trial for MDS or AML which included PRO assessment) and were published between 1996-2017. In trials evaluating anemia, PRO scores showed significant improvement in relevant domains (e.g. fatigue, function) among patients identified as responders. In trials evaluating the impact of anti-cancer therapies, improvements the baseline to end of treatment were observed in physical functioning and HRQOL, however the rates of missing data in many of the trials was high or unreported. PRO instruments have the ability to capture changes over time in patients' function and well-being, and PRO instruments and guidance documents are available to support the assessment of HRQOL in AML/MDS clinical trials., (Copyright © 2018. Published by Elsevier Ltd.)
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- 2018
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137. Cartilage quantitative T2 relaxation time 2-4 years following isolated anterior cruciate ligament reconstruction.
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Wang X, Wrigley TV, Bennell KL, Wang Y, Fortin K, Cicuttini FM, Lloyd DG, and Bryant AL
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- Adolescent, Adult, Anterior Cruciate Ligament Injuries pathology, Body Mass Index, Cartilage, Articular pathology, Case-Control Studies, Female, Femur diagnostic imaging, Follow-Up Studies, Humans, Magnetic Resonance Imaging, Male, Meniscus diagnostic imaging, Orthopedics, Patella diagnostic imaging, Prospective Studies, Tibia diagnostic imaging, Young Adult, Anterior Cruciate Ligament Injuries surgery, Anterior Cruciate Ligament Reconstruction, Cartilage diagnostic imaging, Knee Joint diagnostic imaging
- Abstract
Cartilage T2 relaxation time in isolated anterior cruciate ligament reconstruction (ACLR) without concomitant meniscal pathology and their changes over time remain unclear. The purpose of this exploratory study was to: (i) compare cartilage T2 relaxation time (T2 values) in people with isolated ACLR at 2-3 years post-surgery (baseline) and matched healthy controls and; (ii) evaluate the subsequent 2-year change in T2 values in people with ACLR. Twenty-eight participants with isolated ACLR and nine healthy volunteers underwent knee magnetic resonance imaging (MRI) at baseline; 16 ACLR participants were re-imaged 2 years later. Cartilage T2 values in full thickness, superficial layers, and deep layers were quantified in the tibia, femur, trochlear, and patella. Between-group comparisons at baseline were performed using analysis of covariance adjusting for age, sex, and body mass index. Changes over time in the ACLR group were evaluated using paired sample t-tests. ACLR participants showed significantly higher (p = 0.03) T2 values in the deep layer of medial femoral condyle at baseline compared to controls (mean difference 4.4 ms [13%], 95%CI 0.4, 8.3 ms). Over 2 years, ACLR participants showed a significant reduction (p = 0.04) in T2 value in the deep layer of lateral tibia (mean change 1.4 ms [-7%], 95%CI 0.04, 2.8 ms). The decrease in T2 values suggests improvement in cartilage composition in the lateral tibia (deep layer) of ACLR participants. Further research with larger ACLR cohorts divided according to meniscal status and matched healthy cohorts are needed to further understand cartilage changes post-ACLR. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:2022-2029, 2018., (© 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.)
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- 2018
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138. The Effects of Exercise on Patient-Reported Outcomes and Performance-Based Physical Function in Adults With Acute Leukemia Undergoing Induction Therapy: Exercise and Quality of Life in Acute Leukemia (EQUAL).
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Bryant AL, Deal AM, Battaglini CL, Phillips B, Pergolotti M, Coffman E, Foster MC, Wood WA, Bailey C, Hackney AC, Mayer DK, Muss HB, and Reeve BB
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- Adult, Aged, Anxiety physiopathology, Depression physiopathology, Exercise Therapy methods, Fatigue physiopathology, Female, Health Status, Humans, Male, Middle Aged, Patient Reported Outcome Measures, Quality of Life, Sleep Wake Disorders physiopathology, Exercise physiology, Leukemia physiopathology
- Abstract
Introduction: Fatigue is a distressing symptom for adults with acute leukemia, often impeding their ability to exercise., Objectives: 1) Examine effects of a 4-week mixed-modality supervised exercise program (4 times a week, twice a day) on fatigue in adults with acute leukemia undergoing induction chemotherapy. 2) Evaluate effects of exercise program on cognition, anxiety, depression, and sleep disturbance. 3) Evaluate effect of intervention on adherence to exercise., Methods: 17 adults (8 intervention, 9 control), aged 28-69 years, newly diagnosed with acute leukemia were recruited within 4 days of admission for induction treatment. Patient-reported outcomes (PROs) (fatigue, cognition, anxiety, depression, sleep disturbance, mental health, and physical health) and fitness performance-based measures (Timed Up and Go [TUG], Karnofsky Performance Status, and composite strength scoring) were assessed at baseline and at discharge. Changes in PRO and performance-based physical function measures from baseline to time of discharge were compared between groups using Wilcoxon Rank Sum tests., Results: With PROMIS (Patient-Reported Outcomes Measurement Information System) Fatigue, we found a median change in fatigue (-5.95) for the intervention group, which achieved a minimally important difference that is considered clinically relevant. Intervention group reduced their TUG performance by 1.73 seconds, whereas the control group remained fairly stable. A concerning finding was that cognition decreased for both groups during their hospitalization. 80% adherence of visits completed with a mean of 6 sessions attended per week., Conclusions: Our study provides information on the impact of exercise on symptomatology, with focus on fatigue and other psychosocial variables in acute leukemia.
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- 2018
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139. Differences in Hip and Knee Running Moments across Female Pubertal Development.
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Sayer TA, Hinman RS, Fortin K, Paterson KL, Bennell KL, Timmi A, Pivonka P, and Bryant AL
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- Adolescent, Age Factors, Analysis of Variance, Biomechanical Phenomena, Child, Cross-Sectional Studies, Female, Humans, Range of Motion, Articular, Rotation, Young Adult, Hip Joint physiology, Knee Joint physiology, Puberty, Running physiology
- Abstract
Purpose: This study aimed to investigate whether knee and hip running moments differ across stages of female pubertal development., Methods: This was a cross-sectional study comparing the barefoot running moments of 91 prepubertal (n = 31, Tanner stage I), early/midpubertal (n = 30, Tanner stages II and III), and late/postpubertal (n = 30, Tanner stages IV and V) girls. External peak moments for knee abduction (KAbM), knee adduction (KAM), knee flexion (KFM), and knee internal rotation (KIRM) were analyzed. Secondary measures of hip adduction moment at the time of peak KAbM and hip flexion moment at the time of peak KFM were also derived. Between-group differences were analyzed using a series of one-way ANOVAs and ANCOVAs., Results: At the knee, the late/postpubertal girls displayed a higher peak KFM and KAM compared with the prepubertal group (P < 0.05), and the early/midpubertal group exhibited a higher peak KFM than the prepubertal group (P = 0.034). No between-group differences were found for peak KAbM or KIRM (P > 0.05). At the hip, both the late/postpubertal (P = 0.03) and early/midpubertal girls (P = 0.039) ran with a lower hip adduction moment at the time of peak KAbM than the prepubertal girls. The hip flexion moment at the time of peak KFM in late/postpubertal girls was also significantly lower than both the early/mid- and prepubertal girls (P < 0.001)., Conclusion: Girls at the latter stages of puberty exhibit higher peak external knee flexion and adduction moments, but not abduction or internal rotation moments. This may be partly attributed to a lower hip flexion but higher hip abduction moment at the time of peak knee moments. Future research should examine whether these differences in knee kinetics between pubertal stages have implications for knee injuries such as patellofemoral pain syndrome.
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- 2018
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140. Men with unilateral Achilles tendinopathy have impaired balance on the symptomatic side.
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Scholes M, Stadler S, Connell D, Barton C, Clarke RA, Bryant AL, and Malliaras P
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- Achilles Tendon diagnostic imaging, Achilles Tendon pathology, Achilles Tendon physiopathology, Adult, Biomechanical Phenomena, Chi-Square Distribution, Cross-Sectional Studies, Humans, Male, Middle Aged, Posture physiology, Sensation Disorders diagnosis, Sensation Disorders physiopathology, Ultrasonography, Young Adult, Achilles Tendon injuries, Postural Balance, Tendinopathy physiopathology
- Abstract
Objectives: To investigate single leg standing balance in males with mid-portion Achilles tendinopathy (AT)., Design: Cross sectional case study., Methods: Centre of pressure (COP) path length was measured using a Wii Balance Board (WBB) in 21 male participants (20-60 years) with unilateral mid-portion AT during single-limb standing on each limb with eyes open and closed. Ultrasound imaging of both Achilles tendons was also performed by one blinded assessor, and the anteroposterior (AP) thickness and presence of pathology was determined. Comparisons were made between symptomatic and asymptomatic sides for key outcomes, and correlation between COP path length and variables of interest were investigated., Results: Symptomatic Achilles tendons demonstrated significantly increased AP tendon thickness (p<0.001). Participants with AT demonstrated increased COP path length (sway amplitude) on their affected side during the eyes closed task (p=0.001). Increased tendon thickness was associated with increased sway amplitude during the eyes open task on both the affected (rho=0.44, p=0.045) and unaffected sides (rho=0.62, p=0.003)., Conclusions: In males with AT, single-leg standing balance with eyes closed is impaired on the symptomatic side. This indicates that neuromuscular deficits affecting functional ability may be present in people with AT during more challenging balance activities. It is unclear if this deficit precedes the onset of symptoms, or is a consequence of tendon pain. Work is now needed to understand the mechanisms that may explain standing balance deficits among people with AT., (Copyright © 2017 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.)
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- 2018
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141. Trunk and lower limb coordination during lifting in people with and without chronic low back pain.
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Pranata A, Perraton L, El-Ansary D, Clark R, Mentiplay B, Fortin K, Long B, Brandham R, and Bryant AL
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- Adult, Cross-Sectional Studies, Female, Hip Joint physiology, Humans, Knee Joint physiology, Lumbar Vertebrae physiology, Male, Middle Aged, Movement physiology, Lifting, Low Back Pain physiopathology, Lower Extremity physiology, Torso physiology
- Abstract
Differences in synchronous movement between the trunk and lower limb during lifting have been reported in chronic low back pain (CLBP) patients compared to healthy people. However, the relationship between movement coordination and disability in CLBP patients has not been investigated. A cross-sectional study was conducted to compare regional lumbar and lower limb coordination between CLBP (n = 43) and control (n = 29) groups. The CLBP group was divided into high- and low-disability groups based on their Oswestry Disability Index (ODI) score. The mean absolute relative phase (MARP) angles and mean deviation phase (DP) between the (1) lumbar spine and hip, and (2) hip and knee were measured. The relationship between MARP angle and DP and ODI were investigated using linear regression. The higher-disability CLBP group demonstrated significantly greater lumbar-hip MARP angles than the lower-disability CLBP group (mean difference = 12.97, % difference = 36, p = 0.041, 95% CI [2.97, 22.98]). The higher-disability CLBP group demonstrated significantly smaller hip-knee DP than controls (mean difference = 0.11, % difference = 76, p = 0.011, 95% CI [0.03, 0.19]). There were no significant differences in lumbar-hip and hip-knee MARP and DP between the lower-disability CLBP and control groups. Lumbar-hip MARP was positively associated with ODI (R
2 = 0.092, β = 0.30, p = 0.048). High-disability CLBP patients demonstrated decreased lumbar-hip movement coordination and stiffer hip-knee movement during lifting than low-disability CLBP patients and healthy controls., (Copyright © 2018 Elsevier Ltd. All rights reserved.)- Published
- 2018
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142. Poor knee function after ACL reconstruction is associated with attenuated landing force and knee flexion moment during running.
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Perraton LG, Hall M, Clark RA, Crossley KM, Pua YH, Whitehead TS, Morris HG, Culvenor AG, and Bryant AL
- Subjects
- Adolescent, Adult, Anterior Cruciate Ligament Injuries physiopathology, Biomechanical Phenomena, Cross-Sectional Studies, Female, Humans, Knee Joint surgery, Male, Middle Aged, Treatment Outcome, Young Adult, Anterior Cruciate Ligament Injuries surgery, Anterior Cruciate Ligament Reconstruction, Knee Joint physiopathology, Running physiology
- Abstract
Purpose: Poor knee function after anterior cruciate ligament reconstruction (ACLR) may increase the risk of future knee symptoms and knee osteoarthritis via abnormal knee joint loading patterns, particularly during high-impact activity. This study aimed to assess the relationship between poor self-reported or clinically measured knee function and knee moments/vertical ground reaction force (vGRF) in individuals following ACLR., Methods: 61 participants (mean 16.5 ± 3 months following ACLR, 23 women) completed a patient-reported knee function questionnaire and three hop tests (% of uninvolved limb). Participants were divided into satisfactory and poor knee function groups (poor < 85% patient-reported knee function and/or < 85% hop test symmetry). The knee biomechanics of both groups were assessed with three-dimensional motion analysis during the stance phase of overland running at self-selected speeds, and the association between knee function and knee moments was assessed using analysis of covariance with running speed as a covariate., Results: Participants with poor knee function (n = 30) ran with significantly smaller peak knee flexion moments (moderate effect size 0.7, p = 0.03) and significantly smaller peak vGRFs (large effect size 1.0, p = 0.002) compared to those with satisfactory knee function (n = 31). No significant differences were observed for knee adduction and knee external rotation moments or knee kinematics., Conclusion: Individuals following ACLR with poor self-reported knee function and/or hop test performance demonstrate knee moments during running that may be associated with lower knee joint contact forces. These findings provide greater understanding of the relationship between knee biomechanics during running and clinical assessments of knee function., Level of Evidence: III. Cross-sectional study.
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- 2018
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143. Therapy influences goal attainment following botulinum neurotoxin injection for focal spasticity in adults with neurological conditions.
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Moore EJ, Olver J, Bryant AL, McKenzie DP, and Williams G
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- Adolescent, Adult, Aged, Cohort Studies, Dose-Response Relationship, Drug, Female, Humans, Logistic Models, Male, Middle Aged, Nervous System Diseases rehabilitation, Outcome Assessment, Health Care, Patient Compliance, Severity of Illness Index, Young Adult, Botulinum Toxins, Type A therapeutic use, Goals, Muscle Spasticity drug therapy, Muscle Spasticity etiology, Nervous System Diseases complications, Neuromuscular Agents therapeutic use, Treatment Outcome
- Abstract
Objective: To determine whether therapy influenced goal attainment following botulinum toxin (BoNT-A) injection for focal spasticity in adults with neurological conditions., Methods: A prospective observational cohort study conducted in a large metropolitan spasticity clinic on adults with focal spasticity of any origin. Participants were provided with a therapy programme, designed to maximise therapeutic outcome. The primary outcome measure was Goal Attainment Scaling. To measure adherence, participants completed a therapy-recording tool each day. Goal attainment, and the rate of adherence to the therapy programme, was evaluated after 10 weeks., Results: Active indications for BoNT-A treatment made up the majority of the goals (80.30%). Goals were achieved in 43/76 cases (56.60%; 95% CI = 42.40 to 69.80%). Therapy adherence was associated with significantly greater goal attainment (OR = 1.02, p = 0.03, 95% CI = 1.00 to 1.04). Greater adherence to therapy increased the odds of goal achievement for active indications but not for passive indications, suggesting a possible statistical interaction between the indication for injection and adherence to therapy (p < 0.01)., Conclusion: Therapy adherence was associated with greater goal attainment. Active indications for BoNT-A were more reliant on adherence to prescribed therapy programmes than passive indications, although further investigation is required.
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- 2018
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144. Comorbidity, Physical Function, and Quality of Life in Older Adults with Acute Myeloid Leukemia.
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Storey S, Gray TF, and Bryant AL
- Abstract
Purpose of Review: To describe the pathology, impact of comorbidities, functional limitations, symptoms, and quality of life (QOL) related to treatment of acute myeloid leukemia (AML) in older adults., Recent Findings: AML is a rare aggressive hematologic disease that occurs most often in older adults. The prognosis for older patients with AML is markedly worse due to genetic mutations and patient characteristics such as comorbidities and functional limitations. Patient characteristics may influence treatment decisions, as well as impact symptoms, functional ability, health-related outcomes and (QOL)., Summary: As the population continues to age, the number of people diagnosed with AML is expected to increase. Better management of comorbidities is imperative to improving QOL and other treatment related outcomes. Prospective, longitudinal and multi-site studies are warranted to further understand the interaction between these characteristics on symptoms, outcomes and QOL.
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- 2017
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145. Relationships Between Tibiofemoral Contact Forces and Cartilage Morphology at 2 to 3 Years After Single-Bundle Hamstring Anterior Cruciate Ligament Reconstruction and in Healthy Knees.
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Saxby DJ, Bryant AL, Wang X, Modenese L, Gerus P, Konrath JM, Bennell KL, Fortin K, Wrigley T, Cicuttini FM, Vertullo CJ, Feller JA, Whitehead T, Gallie P, and Lloyd DG
- Abstract
Background: Prevention of knee osteoarthritis (OA) following anterior cruciate ligament (ACL) rupture and reconstruction is vital. Risk of postreconstruction knee OA is markedly increased by concurrent meniscal injury. It is unclear whether reconstruction results in normal relationships between tibiofemoral contact forces and cartilage morphology and whether meniscal injury modulates these relationships., Hypotheses: Since patients with isolated reconstructions (ie, without meniscal injury) are at lower risk for knee OA, we predicted that relationships between tibiofemoral contact forces and cartilage morphology would be similar to those of normal, healthy knees 2 to 3 years postreconstruction. In knees with meniscal injuries, these relationships would be similar to those reported in patients with knee OA, reflecting early degenerative changes., Study Design: Cross-sectional study; Level of evidence, 3., Methods: Three groups were examined: (1) 62 patients who received single-bundle hamstring reconstruction with an intact, uninjured meniscus (mean age, 29.8 ± 6.4 years; mean weight, 74.9 ± 13.3 kg); (2) 38 patients with similar reconstruction with additional meniscal injury (ie, tear, repair) or partial resection (mean age, 30.6 ± 6.6 years; mean weight, 83.3 ± 14.3 kg); and (3) 30 ligament-normal, healthy individuals (mean age, 28.3 ± 5.2 years; mean weight, 74.9 ± 14.9 kg) serving as controls. All patients underwent magnetic resonance imaging to measure the medial and lateral tibial articular cartilage morphology (volumes and thicknesses). An electromyography-driven neuromusculoskeletal model determined medial and lateral tibiofemoral contact forces during walking. General linear models were used to assess relationships between tibiofemoral contact forces and cartilage morphology., Results: In control knees, cartilage was thicker compared with that of isolated and meniscal-injured ACL-reconstructed knees, while greater contact forces were related to both greater tibial cartilage volumes (medial: R
2 = 0.43, β = 0.62, P = .000; lateral: R2 = 0.19, β = 0.46, P = .03) and medial thicknesses ( R2 = 0.24, β = 0.48, P = .01). In the overall group of ACL-reconstructed knees, greater contact forces were related to greater lateral cartilage volumes ( R2 = 0.08, β = 0.28, P = .01). In ACL-reconstructed knees with lateral meniscal injury, greater lateral contact forces were related to greater lateral cartilage volumes ( R2 = 0.41, β = 0.64, P = .001) and thicknesses ( R2 = 0.20, β = 0.46, P = .04)., Conclusion: At 2 to 3 years postsurgery, ACL-reconstructed knees had thinner cartilage compared with healthy knees, and there were no positive relationships between medial contact forces and cartilage morphology. In lateral meniscal-injured reconstructed knees, greater contact forces were related to greater lateral cartilage volumes and thicknesses, although it was unclear whether this was an adaptive response or associated with degeneration. Future clinical studies may seek to establish whether cartilage morphology can be modified through rehabilitation programs targeting contact forces directly in addition to the current rehabilitation foci of restoring passive and dynamic knee range of motion, knee strength, and functional performance., Competing Interests: One or more of the authors has declared the following potential conflict of interest or source of funding: Funding support for this research was received from the Australian National Health and Medical Research Council to A.L.B., D.G.L., K.L.B., and F.M.C. (grant No. 628850), as well as the National Health and Medical Research Council R.D. Wright Biomedical Fellowship and Principal Research Fellowship to authors A.L.B. and K.L.B., respectively. The work of author L.M. was supported by the UK Engineering and Physical Sciences Research Council through grant EP/K03877X/1. D.J.S. received a PhD scholarship and stipend awards from Griffith University, as well as a PhD matching dissertation grant from the International Society of Biomechanics. T.W. is a lecturer for Smith & Nephew and Arthrex, receives research support from Smith & Nephew, and is a consultant for Medacta. C.J.V. receives funding from Smith & Nephew.- Published
- 2017
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146. Activities, function, and health-related quality of life (HRQOL) of older adults with cancer.
- Author
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Pergolotti M, Deal AM, Williams GR, Bryant AL, Bensen JT, Muss HB, and Reeve BB
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- Aged, Black People, Comorbidity, Female, Geriatric Assessment, Humans, Male, Neoplasms epidemiology, Registries, White People, Activities of Daily Living, Neoplasms psychology, Patient Reported Outcome Measures, Quality of Life, Survivorship
- Abstract
Objective: This study aims to (1) describe the activities, function, and health-related quality of life (HRQOL) of a large sample of older adults (age ≥65) with cancer, (2) identify the associations with demographics, cancer type, comorbid conditions, and ability to participate in activities and functional status., Materials and Methods: The Health Registry/Cancer Survivorship Cohort is an institutional database designed to aid cancer survivorship research. The registry includes three measures of patient-reported HRQOL: FACT-G and PROMIS® Global measures for physical and mental health. Other measures included in the registry are cancer type, date from diagnosis, number of comorbid conditions and specific conditions and their limitations in daily activity, and self-reported daily activity/function., Results: Our sample consists of 768 older adults with cancer, mean age 72years, 60% female, and 90% White. Mean scores for HRQOL: FACT-G (85, range: 25-108), PROMIS-physical (48, range: 16-67) and, PROMIS-mental (51, range: 21-67). In multivariable models, Black race, one or more comorbid conditions, and Gastrointestinal cancer (p<.05), and patient- reported decreased levels of activities/function were all independently associated with poor HRQOL (p<.0001)., Conclusions: Older Black adults with cancer, those that have high comorbidity burden, with gastrointestinal cancers and those that report decreased ability to participate in daily activities/function reported poorer HRQOL. As geriatric oncology moves towards trying to identify who may need supportive services, this study demonstrated that a one question patient-reported level of activities and functional ability were independently associated with physical, mental, and cancer-specific HRQOL., (Copyright © 2017 Elsevier Ltd. All rights reserved.)
- Published
- 2017
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147. Cartilage morphology at 2-3 years following anterior cruciate ligament reconstruction with or without concomitant meniscal pathology.
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Wang X, Wang Y, Bennell KL, Wrigley TV, Cicuttini FM, Fortin K, Saxby DJ, Van Ginckel A, Dempsey AR, Grigg N, Vertullo C, Feller JA, Whitehead T, Lloyd DG, and Bryant AL
- Subjects
- Adolescent, Adult, Anterior Cruciate Ligament surgery, Anthropometry, Cartilage Diseases surgery, Female, Follow-Up Studies, Humans, Joint Instability, Magnetic Resonance Imaging methods, Male, Prevalence, Tibial Meniscus Injuries surgery, Young Adult, Anterior Cruciate Ligament Reconstruction, Cartilage Diseases pathology, Cartilage, Articular surgery
- Abstract
Purpose: To examine differences in cartilage morphology between young adults 2-3 years post-anterior cruciate ligament reconstruction (ACLR), with or without meniscal pathology, and control participants., Methods: Knee MRI was performed on 130 participants aged 18-40 years (62 with isolated ACLR, 38 with combined ACLR and meniscal pathology, and 30 healthy controls). Cartilage defects, cartilage volume and bone marrow lesions (BMLs) were assessed from MRI using validated methods., Results: Cartilage defects were more prevalent in the isolated ACLR (69 %) and combined group (84 %) than in controls (10 %, P < 0.001). Furthermore, the combined group showed higher prevalence of cartilage defects on medial femoral condyle (OR 4.7, 95 % CI 1.3-16.6) and patella (OR 7.8, 95 % CI 1.5-40.7) than the isolated ACLR group. Cartilage volume was lower in both ACLR groups compared with controls (medial tibia, lateral tibia and patella, P < 0.05), whilst prevalence of BMLs was higher on lateral tibia (P < 0.001), with no significant differences between the two ACLR groups for either measure., Conclusions: Cartilage morphology was worse in ACLR patients compared with healthy controls. ACLR patients with associated meniscal pathology have a higher prevalence of cartilage defects than ACLR patients without meniscal pathology. The findings suggest that concomitant meniscal pathology may lead to a greater risk of future OA than isolated ACLR., Level of Evidence: III.
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- 2017
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148. Myotonometry Reliably Measures Muscle Stiffness in the Thenar and Perineal Muscles.
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Davidson MJ, Bryant AL, Bower WF, and Frawley HC
- Abstract
Purpose: The authors investigated the reliability of myotonometry-measured muscle tone in the thenar and perineal muscles. Methods: Participants were women aged 18-50 years who were asymptomatic for thumb and pelvic floor dysfunction (interrater study n =20; intrarater study n =43) or who were symptomatic for vulvodynia (interrater study n =14; intrarater study n =32). Mechanical properties (stiffness, frequency, decrement, relaxation time, and creep) of the muscles were measured using a myotonometer (MyotonPRO) while the muscles were in a relaxed state. Measures were performed twice by two assessors. Intra- and interrater reliability were determined using intra-class correlation coefficients (ICCs) and absolute reliability using the standard error of measurement and a minimum detectable change. Results: The primary property of interest, muscle stiffness, showed very good interrater (ICC 0.85-0.86) and intrarater (ICC 0.82-0.88) reliability in the thenar eminence. In the perineal muscles, reliability results ranged from good to very good for interrater (ICC 0.70-0.86) and intrarater (ICC 0.80-0.91) reliability for muscle stiffness. Absolute reliability was confirmed, with all measures showing minimal variance. Conclusions: Muscle stiffness of the smaller muscles of the body can be reliably measured using the MyotonPRO. The device could be used as a reference standard in the development of a digital palpation scale that would facilitate accurate diagnosis of muscle tone.
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- 2017
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149. Corrigendum to "Quadriceps cortical adaptations in individuals with an anterior cruciate ligament injury" [Knee 23 (2016) 582-587].
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Ward SH, Pearce A, Bennell KL, Pietrosimone B, and Bryant AL
- Published
- 2016
- Full Text
- View/download PDF
150. Subject-specific musculoskeletal modeling in the evaluation of shoulder muscle and joint function.
- Author
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Wu W, Lee PVS, Bryant AL, Galea M, and Ackland DC
- Subjects
- Activities of Daily Living, Adult, Biomechanical Phenomena, Humans, Male, Movement physiology, Range of Motion, Articular physiology, Torque, Models, Biological, Muscle, Skeletal physiology, Shoulder physiology, Shoulder Joint physiology
- Abstract
Upper limb muscle force estimation using Hill-type muscle models depends on musculotendon parameter values, which cannot be readily measured non-invasively. Generic and scaled-generic parameters may be quickly and easily employed, but these approaches do not account for an individual subject's joint torque capacity. The objective of the present study was to develop a subject-specific experimental testing and modeling framework to evaluate shoulder muscle and joint function during activities of daily living, and to assess the capacity of generic and scaled-generic musculotendon parameters to predict muscle and joint function. Three-dimensional musculoskeletal models of the shoulders of 6 healthy subjects were developed to calculate muscle and glenohumeral joint loading during abduction, flexion, horizontal flexion, nose touching and reaching using subject-specific, scaled-generic and generic musculotendon parameters. Muscle and glenohumeral joint forces calculated using generic and scaled-generic models were significantly different to those of subject-specific models (p<0.05), and task dependent; however, scaled-generic model calculations of shoulder glenohumeral joint force demonstrated better agreement with those of subject-specific models during abduction and flexion. Muscles in generic musculoskeletal models operated further from the plateau of their force-length curves than those of scaled-generic and subject-specific models, while muscles in subject-specific models operated over a wider region of their force length curves than those of the generic or scaled-generic models, reflecting diversity of subject shoulder strength. The findings of this study suggest that generic and scaled-generic musculotendon parameters may not provide sufficient accuracy in prediction of shoulder muscle and joint loading when compared to models that employ subject-specific parameter-estimation approaches., (Copyright © 2016 Elsevier Ltd. All rights reserved.)
- Published
- 2016
- Full Text
- View/download PDF
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