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Background: Some physiotherapists find assessing and managing clients experiencing psychological distress challenging and are uncertain regarding the boundaries of the profession's scope., Objective: To map the approaches recommended for physiotherapists in scholarly literature, with respect to the assessment and management of clients experiencing psychological distress., Methods: A systematic mapping review was conducted. CINAHL, APA PsycINFO, Embase, and Medline ALL databases were systematically searched for secondary and tertiary literature relevant to the research objective. Recommended approaches were extracted from each article and analyzed descriptively and thematically., Results: 3884 records were identified with 40 articles meeting the inclusion/exclusion criteria. Most recommendations related to identifying, assessing, and managing pain-related distress, with depression screening and referral also receiving some attention. Three approaches to detecting and assessing psychological distress were identified: 1) brief depression screen; 2) integrated suicide/nonsuicidal self-harm and depression screen; and 3) multidimensional screen and health-related distress assessment. Regarding the management of psychological distress the main approaches identified were: 1) education and reassurance; 2) cognitive-behavioral approaches; 3) mindfulness; and 4) case management., Conclusion: While assessment and management of health-related distress by physiotherapists is commonly recommended, further guidance is needed to differentiate various forms of distress.

Objective: to establish whether torque pulses ap-plied by an exoskeleton to the hip and knee joint modulate propulsion mechanics and whether changes in propulsion me-chanics are sustained after exposure to torque pulses under user-driven treadmill control., Methods: we applied twelve for-mulations of torque pulses consecutively over 300 strides to 22 healthy participants, and quantified the evolution of four outcome measures - gait speed (GS), hip extension (HE), trailing limb angle (TLA), normalized propulsive impulse (NPI) - before, during, and immediately after training., Results: Metrics of propulsion mechanics significantly changed both during and after training. Increases in HE during and after training were observed primarily in conjunction with hip/knee flexion pulses during early stance, or hip/knee extension during late stance. Increases in NPI during training were associated with hip/knee extension during early stance, or knee flexion during late stance. Knee flexion dur-ing early stance resulted in positive after-effects in NPI. Increases in GS were associated with the application of hip flexion pulses. Conditions exhibiting the largest positive changes in HE, and not NPI, during training resulted in increased GS after training. Analysis of the relationship between the effects measured during and after training suggests that after-effects primarily arise from retention of training effects, and that such retention is amplified compared to fixed-speed training., Conclusion and Significance: Combination of exoskeleton training and user-driven treadmill control modulates propulsion mechanics both during and after training and can be considered for the formulation of propulsion- oriented methods for individuals with impairments in propulsion mechanics.

Background: Previous research suggests physiotherapists' perceived frequency of contact with clients experiencing psychological distress is common; however, there is significant variation in the frequency of such contact., Objective: The study aimed to 1) investigate Australian physiotherapists' perceived frequency of contact with clients experiencing various forms of psychological distress; 2) identify potential factors that predict perceived frequency of contact; and 3) explore physiotherapists' beliefs regarding their role and self-reported capability to identify and assess psychological distress., Methods: A nationwide online survey of 340 Australian physiotherapists was conducted, and the data were analyzed using descriptive analysis and regression analysis., Results: Physiotherapists' perceived frequencies of contact with psychologically distressed and severely distressed clients expressed as proportions of all clients seen each week were 36.1% and 15.6%, respectively. Factors related to the clinical setting were stronger predictors of the perceived frequency of contact (Cohen's f 2  = 0.16) than factors related to the physiotherapists themselves (Cohen's f 2  = 0.03). Despite believing that identifying psychological distress was within their scope of practice, the physiotherapists in the study felt that assessing and managing this distress fell outside or on the boundary of their scope of practice., Conclusion: Australian physiotherapists frequently encounter clients they perceive to be experiencing psychological distress. Future research into physiotherapists' capability to assess and respond to client psychological distress, using non-self-reported measures, is required.

Background: Psychological distress is a common response to many conditions physiotherapists treat. It is also common for a person's experience of distress to be associated with multiple stressors., Objective: This qualitative study explored physiotherapists' perceptions of the types of patient psychological distress they encountered in their clinical practice., Methods: A qualitative research approach was adopted. Twenty-three physiotherapists were recruited through purposive maximum variation sampling. To participate, physiotherapists had to self-report having encountered at least one patient they perceived to be experiencing psychological distress in the last 12 months. Data analysis was completed using Iterative Thematic Inquiry., Results: Five themes were identified in the study: 1) distress extends beyond physical health issues; 2) fear of the future; 3) the emotional toll of loss; 4) trauma is often part of the story; and 5) losing hope., Conclusion: The results of this study highlight that patient psychological distress presents in a variety of forms and appears to be multifaceted and multifactorial in nature. As patients' experiences of psychological distress are relevant to physiotherapy practice, mental health capabilities need to be embedded within physiotherapy training.

Bone stress injuries are prevalent among athletes and military recruits and can significantly compromise training schedules. The development of an ankle-foot orthosis to reduce tibial load and enable a faster return to activity will require new device testing methodologies capable of capturing the contribution of muscular force on tibial strain. Thus, an actuated robotic surrogate leg was developed to explore how tibial strain changes with different ankle-foot orthosis conditions. The purpose of this work was to assess the reliability, scalability, and behavior of the surrogate. A dual actuation system consisting of a Bowden cable and a vertical load applied to the femur via a material testing system, replicated the action-reaction of the Achilles-soleus complex. Maximum and minimum principal strain, maximum shear strain, and axial strain were measured by instrumented strain gauges at five locations on the tibia. Strains were highly repeatable across tests but did not consistently match in vivo data when scaled. However, the stiffness of the ankle-foot orthosis strut did not systematically affect tibial load, which is consistent with in vivo findings. Future work will involve improving the scalability of the results to match in vivo data and using the surrogate to inform exoskeletal designs for bone stress injuries.

Purpose: Sedentary behaviour is associated with pain, fatigue, and a more severe impact of the disease in fibromyalgia, independently of physical activity levels. Despite this knowledge, little attention has been attributed to estimate sedentary behaviour in this population. The aims of this meta-analysis were to: (a) establish the pooled mean time spent sedentary, (b) investigate moderators of sedentary levels, and (c) explore differences with age- and gender-matched general population controls in people with fibromyalgia (PwF)., Methods: Two independent authors searched major databases until 1 December 2022. A random effects meta-analysis was performed. The methodological quality of included studies was assessed with the Quality Assessment Tool for Observational Cohort and Cross-sectional Studies., Results: Across 7 cross-sectional studies of fair methodological quality, there were 1500 patients with fibromyalgia (age range = 43-53 years). PwF spent 545.6 min/day (95% CI = 523.7-567.5, p  < 0.001, N  = 3) engaging in sedentary behaviour. Self-reported questionnaires overestimate sedentary levels with 314.3 min/day (95% CI = 302.0-326.6, p  = 0.001, N  = 2). PwF spent 36.14 min/day (95% CI = 16.3-55.9, p  < 0.001) more in sedentary behaviour than general population controls., Conclusions: PwF are more sedentary than the general population. The limited available data should however be considered with caution due to substantial heterogeneity.

Objective: To investigate the prevalence and moderators of dropout rates among adults with knee or hip osteoarthritis participating in exercise randomized controlled trials (RCTs)., Data Sources: Two authors searched Embase, CINAHL, PsycARTICLES, and PubMed up to 01/09/2023., Study Selection: We included RCTs of exercise interventions in people with knee or hip osteoarthritis that reported dropout rates., Data Extraction: Dropout rates from exercise and control conditions and exerciser/participant, provider, and design/implementation related moderators., Data Synthesis: In total, 209 RCTs involving 277 exercise arms in 13,102 participants were included (mean age at study level=64 years; median prevalence of men participants=26.8%). The trim-and-fill-adjusted prevalence of dropout across all RCTs was 17.5% (95% CI=16.7%-18.2%), which is comparable with dropout observed in control conditions (trim-and-fill-adjusted odds ratio=0.89; 95% CI=0.71-1.12, P=.37). Higher prevalence of antidepressant use at study-level predicted higher dropout (R 2 =0.75, P=.002, N RCTs=6, n exercisers=412). Supervision by an exercise professional was associated with lower dropout rates, with a trim-and-fill-adjusted rate of 13.2% (95% CI=11.7%-14.9%) compared with 20.8% without supervision (95% CI=18.3%-23.5%) (P<.001)., Conclusions: Dropout rates for exercise in RCTs are comparable with control conditions, suggesting that exercise is a generally well-accepted intervention. However, interventions should be supervised by an exercise professional, such as a physiotherapist or exercise physiologist, to further minimize the risk of dropout. Health professionals should consider participants' use of antidepressants as a risk factor for dropout from exercise., (Copyright © 2024 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.)

Background: All health professionals have a role in suicide prevention, although little is known about physiotherapists' contact with clients experiencing suicidal thoughts and behaviors., Objective: The aims of this study were to investigate physiotherapists' self-reported frequency of contact with clients who disclose suicidal thoughts and behaviors and to identify potential factors associated with frequency of contact., Methods: Three-hundred and thirty-eight Australian physiotherapists were surveyed using an online questionnaire, with an estimated response rate of 6.1%. Data were analyzed using descriptive analysis and logistic regression., Results: Over half the respondents (52.1%) reported encountering clients at least once a year who disclosed suicidal thoughts, and nearly half (49.4%) reported having received at least one disclosure of a suicide plan at some point in their career. Among those working in the public sector, 67.5% of respondents reported having received a disclosure of a suicide plan, and almost all physiotherapists working in pain management reported having received such a disclosure (93.8%). The binary logistic regression model explained approximately 39.7% of the variance in whether a physiotherapist had a client disclose a plan for suicide at some point in their career or not., Conclusion: The results highlight that all physiotherapists should receive training in suicide prevention.

Objective: To meta-analyze the prevalence and predictors of dropout rates among adults with fibromyalgia participating in exercise randomized controlled trials (RCTs)., Data Sources: Two authors searched Embase, CINAHL, PsycARTICLES, and Medline up to 01/21/2023., Study Selection: We included RCTs of exercise interventions in people with fibromyalgia that reported dropout rates., Data Extraction: Dropout rates from exercise and control conditions and exerciser/participant, provider, and design/implementation related predictors., Data Synthesis: A random effects meta-analysis and meta-regression were conducted. In total, 89 RCTs involving 122 exercise arms in 3.702 people with fibromyalgia were included. The trim-and-fill-adjusted prevalence of dropout across all RCTs was 19.2% (95% CI=16.9%-21.8%), which is comparable with the dropout observed in control conditions with the trim-and-fill-adjusted odds ratio being 0.31 (95% CI=0.92-1.86, P=.44). Body mass index (R 2 =0.16, P=.03) and higher effect of illness (R 2 =0.20, P=.02) predicted higher dropout. The lowest dropout was observed in exergaming, compared with other exercise types (P=.014), and in lower-intensity exercises, compared with high intensity exercise (P=.03). No differences in dropout were observed for the frequency or duration of the exercise intervention. Continuous supervision by an exercise expert (eg, physiotherapist) resulted in the lowest dropout rates (P<.001)., Conclusions: Exercise dropout in RCTs is comparable with control conditions, suggesting that exercise is a feasible and accepted treatment modality; however, interventions are ideally supervised by an expert (eg, physiotherapist) to minimize the risk of dropout. Experts should consider a high BMI and the effect of the illness as risk factors for dropout., (Copyright © 2023 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.)

Background: Previous research suggests that physiotherapists frequently engage with patients who experience psychological distress (e.g. feelings of depression and anxiety) and that physiotherapists find supporting these patients challenging., Objective: The aim of this study was to explore the experiences of Australian physiotherapists with patients they perceived were experiencing psychological distress., Methods: A 'Big Q' qualitative research approach was used. Twenty-three interviews with physiotherapists were conducted. The data were then analyzed using iterative thematic inquiry., Results: The analysis produced four interrelated themes: 1) encounters with patients in distress are common and varied; 2) becoming emotionally attuned with their patients meant that distress could invoke empathetic distress; 3) physiotherapists use emotional shields to protect themselves; and 4) physiotherapists found frequent encounters with patient distress to be emotionally exhausting. Viewed together, the themes highlight how patient distress can invoke transient empathetic distress in a physiotherapist; repeated experiences of empathetic distress may lead to empathetic distress fatigue., Conclusion: While physiotherapists are sometimes viewed as 'physical' health professionals, the experiences of these physiotherapists suggest that patient psychological distress is highly relevant to physiotherapy practice. We recommend future research explores the relationships between patient distress, physiotherapists' empathy, and physiotherapists' wellbeing.

Purpose: Understanding the enablers of and barriers to physical activity (PA) participation in people with fibromyalgia (PwF) is an essential first step to developing effective PA interventions. This systematic review examined correlates of PA across the socio-ecological model (i.e., intra-personal, inter-personal, environmental, and policy level) in PwF., Materials and Methods: PubMed, Embase, and CINAHL were searched from inception until 12 July 2022. Keywords included "physical activity" or "exercise" and "fibromyalgia" or "fibrositis." Summary coding was used to quantify the PA correlates., Results: Out of 74 PA correlates retrieved from 39 articles ( n  = 9426), co-morbid depression and higher pain intensity were found to be consistent (i.e., reported in four or more articles) barriers to PA in PwF, while higher self-efficacy and better endurance were found to be consistent enablers to PA. Despite the abundance of evidence for the PA benefits for PwF, we only found consistent evidence for PA correlates at the intrapersonal level., Conclusions: Health professionals should consider mental and physical health barriers when promoting PA in PwF. There remains a need to better understand social, environmental, and policy-related factors associated with PA participation in PwFImplications for rehabilitationCo-morbid depression is a notable barrier to physical activity participation in people with fibromyalgia.Experienced pain intensity should be considered as a barrier when promoting physical activity for people with fibromyalgia.Rehabilitation professionals should facilitate self-efficacy in physical activity interventions for people with fibromyalgia.Rehabilitation professionals should promote endurance when motivating people with fibromyalgia towards an active lifestyle.

Each year, approximately 700,000 people, including 46,000 Americans, die by suicide; however, many more people experience suicidal thoughts and behaviors. Historically, the prevention of suicide has largely been the domain of mental health professionals working within specialist mental health care settings. An issue with this approach is that many individuals who experience suicidal ideation never disclose these thoughts to a mental health professional. The nonprofessional and paraprofessional mental health movement aims to bring suicide prevention to the people who need it, rather than wait for them to seek help. The nonprofessional and paraprofessional mental health movement does so by upskilling people who are not recognized as mental health professionals but may have contact with people experiencing suicidal thoughts and behaviors. In this Perspective, we argue that physical therapists are well-positioned to engage in suicide prevention. For example, physical therapists working in pain management are likely to frequently encounter clients experiencing suicidal thoughts and behaviors. Physical therapy is also viewed as a physical health profession, meaning that they may have contact with a broad range of populations at high risk of suicide who may be difficult to reach through traditional channels (eg, men from rural communities). Physical therapists will require training on how to provide crisis support, including how to link clients with appropriate mental health services. However, given the size of the physical therapist workforce globally, the impact of mobilizing the physical therapist workforce could be significant., (© The Author(s) 2023. Published by Oxford University Press on behalf of the American Physical Therapy Association. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Introduction: It is unclear how much physical activity (PA) people with fibromyalgia (PwF) engage in. We conducted a meta-analysis to examine PA levels in PwF and compared levels with age- and gender-matched controls and between objective and subjective assessments., Methods: Embase, PubMed and CINAHL Plus were searched by two independent reviewers from inception till 3 January 2023 using the keywords: 'fibromyalgia' OR 'fibrositis' AND 'physical activity' OR 'exercise' OR 'sports'. A random effects meta-analysis adjusting for publication bias was conducted., Results: Across 22 studies, there were 5997 (5956 women) PwF (median age = 44 years). After trim and fill adjustment, PwF spent a mean of 4.0 (95% CI = 2.3-5.8) min/day in vigorous PA, 67.5 (95% CI = 35.4-99.6) min/day in moderate intensity PA and 270.5 (95% CI = 99.6-441.4) min/day in light PA. Only 37.7% (95% CI = 18.7-61.5) of PwF achieved the public PA recommendation of 150 min of moderate to vigorous PA per week. PwF walked 5663.7 (95% CI = 4493.5-6833.9) steps per day, which is below the 6000 steps per day recommendation. PwF spent 39.0 min/day (95% CI = 22.8-55.1, p < 0.001) less in PA than healthy controls, while MET-minutes per week is 1324.7 (95 % CI = 237.6-2411.7, p = 0.017) lower. There were no significant differences between subjective and objective PA assessments (p = 0.69)., Conclusion: Our data demonstrate that the majority of PwF are still insufficiently physically active to obtain significant health benefits. Future clinical PA interventions specifically targeting the prevention of physical inactivity in PwF and engaging physically inactive PwF to become physically active are warranted., (© 2023 John Wiley & Sons Ltd.)

Introduction: Understanding the correlates of sedentary behavior (SB) is important in the development of interventions which reduce and interrupt SB in people with fibromyalgia (PwF). This systematic review aimed to investigate the correlates of SB in PwF using the socio-ecological model., Methods: Three databases (Embase, CINAHL and PubMed) were search from inception until July 21, 2022 using "sedentary" or different types of SB and "fibromyalgia" or "fibrositis" as keywords. The data collected was then analyzed using summary coding., Results: Out of 23 SB correlates retrieved from 7 reports (n = 1698), no correlates were consistently reported (ie, reported in 4 or more studies). Higher pain intensity was the most commonly reported barrier for reducing/interrupting SB (reported in 3 reports). Other reported barriers to reducing/interrupting SB were experiencing physical and mental fatigue, a more severe disease impact, and a lack of motivation to be physically active (all reported in 1 study). A better experienced social and physical functioning and more vitality were facilitators for reducing/interrupting SB (all reported in 1 study). To date, in PwF no correlates of SB at the interpersonal, environmental and policy levels have been explored., Conclusion: Research on correlates of SB in PwF is still in its infancy. The current preliminary evidence suggests that clinicians should consider physical and mental barriers when aiming to reduce or interrupt SB in PwF. Further research on modifiable correlates at all levels of the socio-ecological model is required to inform future trials aiming to modify SB in this vulnerable population., (© 2023 Asia Pacific League of Associations for Rheumatology and John Wiley & Sons Australia, Ltd.)

Interest in the individualized responses to exercise has been growing within mental health care and psychiatry. This meta-analysis examined if true interindividual differences (IIDs) in anxiolytic effects of exercise exist among adults with anxiety- and stress-related disorders. Data were extracted from a previous meta-analysis of randomized controlled trials (RCTs) and searches in CINAHL, Embase and Medline were updated (8 arms from 7 original studies, n participants=322). Change outcome standard deviations treated as point estimates for anxiety were extracted to calculate true IIDs. Inverse variance heterogeneity and restricted maximum likelihood models were used. Aerobic exercise and resistance training showed significant anxiolytic effects. No significant pooled IIDs were found for aerobic exercise nor resistance training demonstrating that there is currently a lack of convincing evidence to support the notion that true IIDs exist for the anxiolytic effects of exercise among adults with anxiety- and stress-related disorders. Consequently, clinical practice can focus on general population physical activity guidelines for patients with anxiety- and stress-related disorders rather than aiming for highly specific, individualized recommendations. Future research could prioritize investigating how to motivate patients with anxiety- and stress-related disorders to meet general population physical activity guidelines., Competing Interests: Declaration of Competing Interest The authors state that there are no conflicts of interest to report., (Copyright © 2022 Elsevier B.V. All rights reserved.)

In Australia, physiotherapists are registered healthcare practitioners who possess the knowledge and skills to care for clients with poor physical health as a result of musculoskeletal, neurological, and respiratory conditions. Although physiotherapists are not considered a primary profession in the Australian mental health workforce, the association between suicide and poor physical health suggests that they may encounter clients with suicidal thoughts and behaviours. We used a qualitative approach inspired by phenomenology to explore the experiences of nine physiotherapists who encountered clients with suicidal thoughts and behaviours. We used a combination of focus groups and in-depth interviews to collect this data. The data were analysed inductively using framework analysis. The main themes identified in the data were: i) the importance of trust, ii) the mechanism of conversation, and iii) the 'middle space'. The middle space refers to the experience of working with clients at risk of low or medium risk of suicide. A trusting practitioner-client relationship was reported to be essential in facilitating the disclosure of suicidal thoughts and behaviours. Physiotherapists also reported that less structured subjective assessments encourage clients to talk more openly, which in turn facilitates the disclosure of suicidal thoughts and behaviours. Once the disclosure of suicidal thoughts and behaviours occurred, physiotherapists reported a lack of confidence regarding role clarity and issues associated with this. Difficulties were most evident during encounters with clients with low to medium suicide risk due to a lack of confidence in the accuracy of assessment of these clients. The findings suggest that physiotherapists are well placed to detect and/or receive disclosure of suicidal thoughts and behaviours, as well as the need for physiotherapists to be trained in how to support clients who disclose suicidal thoughts and behaviours., Competing Interests: The authors have declared that no competing interests exist.

Robot assisted gait retraining is an increasingly common method for supporting restoration of walking function after neurological injury. Gait speed, an indicator of walking function, is correlated with propulsive force, a measure modulated by the posture of the trailing limb at push-off. With the ultimate goal of improving efficacy of robot assisted gait retraining, we sought to directly target gait propulsion, by exposing subjects to pulses of joint torque applied at the hip and knee joints to modulate push-off posture. In this work, we utilized a robotic exoskeleton to apply pulses of torque to the hip and knee joints, during individual strides, of 16 healthy control subjects, and quantified the effects of this intervention on hip extension and propulsive impulse during and after application of these pulses. We observed significant effects in the outcome measures primarily at the stride of pulse application and generally no after effects in the following strides. Specifically, when pulses were applied at late stance, we observed a significant increase in propulsive impulse when knee and/or hip flexion pulses were applied and a significant increase in hip extension angle when hip extension torque pulses were applied. When pulses were applied at early stance, we observed a significant increase in propulsive impulse associated with hip extension torque.

Robot-assisted training is a promising tool under development for improving walking function based on repetitive goal-oriented task practice. The challenges in developing the controllers for gait training devices that promote desired changes in gait is complicated by the limited understanding of the human response to robotic input. A possible method of controller formulation can be based on the principle of bio-inspiration, where a robot is controlled to apply the change in joint moment applied by human subjects when they achieve a gait feature of interest. However, it is currently unclear how lower extremity joint moments are modulated by even basic gait spatio-temporal parameters. In this study, we investigated how sagittal plane joint moments are affected by a factorial modulation of two important gait parameters: gait speed and stride length. We present the findings obtained from 20 healthy control subjects walking at various treadmill-imposed speeds and instructed to modulate stride length utilizing real-time visual feedback. Implementing a continuum analysis of inverse-dynamics derived joint moment profiles, we extracted the effects of gait speed and stride length on joint moment throughout the gait cycle. Moreover, we utilized a torque pulse approximation analysis to determine the timing and amplitude of torque pulses that approximate the difference in joint moment profiles between stride length conditions, at all gait speed conditions. Our results show that gait speed has a significant effect on the moment profiles in all joints considered, while stride length has more localized effects, with the main effect observed on the knee moment during stance, and smaller effects observed for the hip joint moment during swing and ankle moment during the loading response. Moreover, our study demonstrated that trailing limb angle, a parameter of interest in programs targeting propulsion at push-off, was significantly correlated with stride length. As such, our study has generated assistance strategies based on pulses of torque suitable for implementation via a wearable exoskeleton with the objective of modulating stride length, and other correlated variables such as trailing limb angle., Competing Interests: The authors have declared that no competing interests exist.

Robot-assisted gait training is becoming increasingly common to support recovery of walking function after neurological injury. How to formulate controllers capable of promoting desired features in gait, i.e. goals, is complicated by the limited understanding of the human response to robotic input. A possible method to formulate controllers for goal-oriented gait training is based on the analysis of the joint torques applied by healthy subjects to modulate such goals. The objective of this work is to understand how sagittal plane joint torque is affected by two important gait parameters: gait speed (GS) and stride length (SL). We here present the results obtained from healthy subjects walking on a treadmill at different speeds, and asked to modulate stride length via visual feedback. Via principal component analysis, we extracted the global effects of the two factors on the peak-to-peak amplitude of joint torques. Next, we used a torque pulse approximation analysis to determine optimal timing and amplitude of torque pulses that approximate the SL-specific difference in joint torque profiles measured at different values of GS. Our results show a strong effect of GS on the torque profiles in all joints considered. In contrast, SL mostly affects the torque produced at the knee joint at early and late stance, with smaller effects on the hip and ankle joints. Our analysis generated a set of torque assistance profiles that will be experimentally tested using gait training robots.

Objectives: To determine (1) bimanual coordination deficits in patients with stroke using 3-dimensional kinematic analyses as they perform naturalistic tasks requiring collaborative interaction of the 2 arms; and (2) whether bimanual coordination deficits are related to clinical measures of sensorimotor impairments and unimanual performance of the paretic arm., Design: Case-control study., Setting: Rehabilitation hospital research institute., Participants: Participants (N=24) were patients with unilateral chronic stroke (n=14) and age-matched controls (n=10)., Interventions: Not applicable., Main Outcome Measures: Temporal coordination between the 2 hands as participants performed (1) a symmetric task: reach to pick up a box using both hands; and (2) an asymmetric task: open a drawer with 1 hand to press a button inside with the other hand., Results: During the symmetric task, patients and controls showed preserved temporal coupling while transporting the hands to the box. However, on reaching the box, patients demonstrated an impaired ability to cooperatively interact their 2 arms for an efficient pickup. This led to significantly longer pickup times compared with controls. Pickup time positively correlated with proprioceptive deficits of the paretic arm. During the asymmetric task, patients had a longer time delay between drawer opening and button pressing movements than controls. The deficits in asymmetric coordination did not significantly correlate with sensorimotor impairments or unimanual paretic arm performance., Conclusions: Bimanual coordination was impaired in patients poststroke during symmetric and asymmetric bimanual tasks that required cooperative interaction between the 2 arms. While the proprioceptive system contributes to symmetric cooperative coordination, commonly tested measures of paretic arm impairment or performance, or both, do not strongly predict deficits in bimanual coordination., (Copyright © 2016 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.)

Hemispheric specialization for motor control influences how individuals perform and adapt to goal-directed movements. In contrast to adaptation, motor skill learning involves a process wherein one learns to synthesize novel movement capabilities in absence of perturbation such that they are performed with greater accuracy, consistency and efficiency. Here, we investigated manual asymmetry in acquisition and retention of a complex motor skill that requires speed and accuracy for optimal performance in right-handed and left-handed individuals. We further determined if degree of handedness influences motor skill learning. Ten right-handed (RH) and 10 left-handed (LH) adults practiced two distinct motor skills with their dominant or nondominant arms during separate sessions two-four weeks apart. Learning was quantified by changes in the speed-accuracy tradeoff function measured at baseline and one-day retention. Manual asymmetry was evident in the RH group but not the LH group. RH group demonstrated significantly greater skill improvement for their dominant-right hand than their nondominant-left hand. In contrast, for the LH group, both dominant and nondominant hands demonstrated comparable learning. Less strongly-LH individuals (lower EHI scores) exhibited more learning of their dominant hand. These results suggest that while hemispheric specialization influences motor skill learning, these effects may be influenced by handedness., (Copyright © 2015 Elsevier B.V. All rights reserved.)

The first detailed measurements of the centrality dependence of strangeness production in p-A collisions are presented. Lambda and K(S) dn/dy distributions from 17.5 GeV/ c p-Au collisions are shown as a function of "grey" track multiplicity and the estimated number of collisions, nu, made by the proton. The nu dependence of the Lambda yield deviates from a scaling of p-p data by the number of participants, increasing faster than this scaling for nu

Forty-one infants with thoracoabdominal ectopia cordis have been reported to date; 9 of them survived. Among the patients with an omphalocele as the abdominal wall defect, however, only 2 survived. Death in this group of patients occurred almost exclusively as a consequence of either attempted coverage of the heart or secondary to the associated intracardiac lesion. We report here the case of a patient recently treated in whom coverage with a temporary Silastic prosthesis protected the exposed heart from infection and rupture of the sac, thus permitting full cardiac investigation before operation.

A case of chylothorax following a right-sided Blalock-Taussig shunt is presented. Chylopericardial tamponade eventually developed, because the mediastinal leakage of chyle was sealed off from the pleural cavity and diverted into the pericardium. Chylopericardium is a rare cause of an enlarged cardiac silhouette on a postoperative chest roentgenogram, but the importance of differentiating it from congestive heart failure is illustrated. When chylopericardial tamponade occurs, treatment consists of (1) aspiration for immediate relief and, if there is recurrence, (2) surgical evacuation of the pericardium with tube drainage or pericardiectomy and (3) ligation of the source of chylous drainage.

Preterm infants at risk of developing a patent ductus arteriosus were followed sequentially by physical examination, echocardiographic determinations of the LA/AO ratio, and chest roentgenograms. The results show that a significant number of infants who have no clinical signs or symptoms of a PDA have large left-to-right shunts. The presence of this shunt was suggested by acute increase in left atrial size by ECHO determination and confirmed by retrograde single-film aortography. Clinical signs and symptoms often developed several days after documentation of the left-to-right shunt.