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Contains fulltext : 306416.pdf (Publisher’s version ) (Open Access), OBJECTIVE: To investigate how people with shoulder problems and their physiotherapists perceive the recovery of shoulder problems. METHOD: We performed a qualitative study using semi-structured interviews with patients and their physiotherapists. Nine pairs of patients and physiotherapists (n = 18) were recruited. The transcribed interviews were analyzed in a consecutive multistep iterative process using a conventional content analysis. RESULTS: Analysis of the interviews resulted in three major themes: 'What do I expect from my recovery?', 'Am I recovering?' and 'When do I consider myself recovered?' The patients and physiotherapists talked similarly about the importance of and interdependency between these themes. Central to these three themes are the analysis of the cause of shoulder problems and the experience of uncertainty. Our analyses suggest that there are conceptual differences in how patients and physiotherapists formulate their expectations about recovery, observe the recovering process, and conceptualize when someone may be considered recovered. Different interpretations by the patients of the information provided by the physical therapists appeared to fuel these differences. CONCLUSION: Our results show that the concept of recovery is defined by patients and physiotherapists in three distinct themes. Within these themes the patients and physiotherapists differ substantially in their conceptualization of the recovery. IMPACT STATEMENT: This insight in the concept of recovery can help patients and physiotherapists better understand each other, enhance the alignment of ideas about the care process, and support making decisions together. Physiotherapists should be aware that patients might interpret their words, explanations, and expectations substantially different., 01 juni 2024

Contains fulltext : 296154.pdf (Publisher’s version ) (Open Access), BACKGROUND: The Observable Movement Quality scale for patients with low back pain (OMQ-LBP) is a newly developed measurement instrument for use in primary care settings of physical and exercise therapists to assess movement quality (MQ) of patients with low back pain (LBP). OBJECTIVE: This study aims to determine validity, reliability and feasibility of the OMQ-LBP. The OMQ-LBP consists of a standardized movement circuit (performed twice) consisting of five daily activities problematic for LBP patients, which are scored with an 11-item observation list. METHODS: Construct validity was determined by testing seven hypotheses on associations between constructs (n = 85 patients with LBP) and four hypotheses on known group differences (n = 85 patients with LBP and n = 63 healthy controls; n = 35 matched participant-patients having VAS-pain ≥ 20 mm during and/or after both circuits and healthy controls). Internal consistency was analyzed with Cronbach's alpha (n = 85 patients with LBP). For inter- and intra-rater reliability Intraclass Correlation Coefficient (ICC) values were examined (n = 14 therapists: seven primary care physical therapists and seven exercise therapists). Additionally, content validity and feasibility were determined using thematic analysis of a brief interview with participants, patients (n = 38) and therapists (n = 14). RESULTS: After Bonferroni correction 2/7 associations between constructs and 2/4 significant group differences were confirmed. Cronbach's alpha was 0,79. The ICC-values of interrater reliability of the OMQ-LBP total score and the duration score were 0.56 and 0.99 and intra-rater reliability 0.82 and 0,93, respectively. Thematic analysis revealed five themes. Three themes elucidate that both patients and therapists perceived the content of the OMQ-LBP as valid. The fourth theme exhibits that OMQ-LBP provides a clear and unambiguous language for MQ in patients with LBP. Theme 5 depicts that the OMQ-LBP seems feasible, but video recordin

The last 25 years have shown a steady increase in attention for the Bayes factor as a tool for hypothesis evaluation and model selection. The present review highlights the potential of the Bayes factor in psychological research. We discuss six types of applications: Bayesian evaluation of point null, interval, and informative hypotheses, Bayesian evidence synthesis, Bayesian variable selection and model averaging, and Bayesian evaluation of cognitive models. We elaborate what each application entails, give illustrative examples, and provide an overview of key references and software with links to other applications. The paper is concluded with a discussion of the opportunities and pitfalls of Bayes factor applications and a sketch of corresponding future research lines.

Radboud University, 09 september 2022, Promotores : Wees, P.J. van der, Nijhuis-van der Sanden, M.W.G. Co-promotores : Dulmen, S.A. van, Kiers, H., Contains fulltext : 252888.pdf (Publisher’s version ) (Open Access)

Item does not contain fulltext, OBJECTIVE: The purpose of this study was to define and select a core set of outcome-based quality indicators, accepted by stakeholders on usability and perceived added value as a quality improvement tool, and to formulate recommendations for the next implementation step. METHODS: In phase 1, 15 potential quality indicators were defined for patient-reported outcome measures and associated domains, namely the Numeric Pain Rating Scale (NPRS) for pain intensity, the Patient Specific Functioning Scale (PSFS) for physical activity, the Quebec Back Pain Disability Scale for physical functioning, and the Global Perceived Effect-Dutch Version for perceived effect. Their comparability and discriminatory characteristics were described using cohort data. In phase 2, a core set of quality indicators was selected based on consensus among stakeholders in focus group meetings. RESULTS: In total, 65,815 completed treatment episodes for patients with nonspecific low back pain were provided by 1009 physical therapists from 219 physical therapist practices. The discriminability between physical therapists of all potential 15 quality indicators was adequate, with intraclass correlation coefficients between 0.08 and 0.30. Stakeholders selected a final core set of 6 quality indicators: 2 process indicators (the routine measurement of NPRS and the PSFS) and 4 outcome indicators (pretreatment and posttreatment change scores for the NPRS, PSFS, Quebec Back Pain Disability Scale, and the minimal clinically important difference of the Global Perceived Effect-Dutch Version). CONCLUSION: This study described and selected a core set of outcome-based quality indicators for physical therapy in patients with nonspecific low back pain. The set was accepted by stakeholders for having added value for daily practice in physical therapy primary care and was found useful for quality improvement initiatives. Further studies need to focus on improvement of using the core set of outcome-based quality indica

Contains fulltext : 218796.pdf (Publisher’s version ) (Closed access), BACKGROUND: Observing and analyzing movement quality (MQ) in patients with non-specific low back pain (NS-LBP) is important in the clinical reasoning of primary care physiotherapists and exercise therapists. However, there is no standardized form of assessment. RESEARCH QUESTION: which MQ domains are measured with which instruments, and which activities are relevant, appropriate and methodologically sound for assessing MQ in patients with NS-LBP? METHODS: The study had three phases. In phase 1 we conducted a systematic review in PubMed, CINAHL and SPORTDiscus of literature published until October 2018. The selected studies measured MQ domains with instruments that enabled us to 1) compare MQ in self-paced dynamic activities of patients with NS-LBP and healthy controls, and/or 2) determine change over time of MQ in patients with NS-LBP. In phase 2 we established relevant dynamic activities to assess in patients with NS-LBP. In phase 3 we determined appropriateness and methodological qualities of the selected instruments. RESULTS: Thirty cross-sectional and three pre-post-test studies were eligible. The instruments consisted of complex (n=19) and simple (n=7) instrumented motion analysis systems and standardized observational tests (n=7). We identified three domains representative for MQ: range of motion (ROM), inter-segmental coordination, and whole-body movements. In these domains, patients with NS-LBP significantly differed from healthy controls, respectively 7/12, 12/13 and 13/20 studies. Moreover, ROM and whole-body movements significantly improved over time in patients with NS-LBP (3/3 studies). Based on phase 3, we concluded that none of the instruments are appropriate to assess MQ in patients with NS-LBP in primary care. SIGNIFICANCE: Forward bending, lifting, and walking seem the most relevant activities to evaluate in patients with NS-LBP. However, we found no suitable instruments to measure ROM, inter-segmental coordination, or whole-body movements as deter

De Chinese danio (Tanichthys albonubes) heeft de naam ijzersterk te zijn, ge- makkelijk te houden en al genoegen te nemen met een klein aquarium. Daarom wordt hij vaak verkocht aan beginnende aquarianen. Toch hebben ook deze vis- jes hun voorkeuren wat betreft verzorging. Van oorsprong komen Danio’s uit een wat hoger gelegen gedeelte in China, waar het water wat koeler is. In de handel zijn nagenoeg alleen nog nakweek Chinese danio’s te vinden die zich aardig aangepast hebben aan de omstandigheden in het tropisch aquarium.

Contains fulltext : 208215.pdf (publisher's version ) (Open Access), PURPOSE: To develop a clinical standard set of outcome measures that are accepted for relevance and feasibility by stakeholders and useful for (a) interaction between patient and the professional, e.g. shared decision-making in goal-setting, monitoring and feedback based on outcomes, (b) internal quality improvement, and (c) external transparency in patients with non-specific low back pain (NSLBP) in primary care physical therapy. METHODS: We used a consensus-driven modified RAND-UCLA Delphi method in seven steps with panellists (patients, representatives of patient and physiotherapy associations, researchers, policy makers, health insurers): (1) literature search, (2) first online survey, (3) patient interviews, (4) an experts meeting, (5) a consensus meeting, (6) second online survey, and (7) final approval of an advisory board. Steps 1-4 resulted in potential outcome measures. In the consensus meeting after discussion panellists voted for inclusion per measure. In the second online survey the final standard set was rated on relevance and feasibility on a 9-point Likert scale; when the median score was >/= 7, the standard set was accepted and finally approved. RESULTS: Thirteen draft outcome measures were rated and discussed, and finally, six outcome measures were accepted. The standard set includes the Quebec Back Pain Disability Scale, Oswestry Disability Index, Patient-Specific Functional Scale, Numeric Pain Rating Scale, Global Perceived Effect (GPE-DV), and the STarT Back Screening Tool (SBT). CONCLUSION: This study presents a standard set of outcome measures for patients with NSLBP in primary care physiotherapy accepted for relevance and feasibility by stakeholders. The standard set is currently used in daily practice and tested on validity and reliability in a pilot study. These slides can be retrieved under Electronic Supplementary Material.

Als je een aquarium gaat bevolken, is het leuk om in alle waterlagen (boven, midden en onder) wat beweging te hebben en niet alleen in het midden. Wanneer je op zoek gaat naar siervissen voor de onderste waterlaag, kom je al snel uit op pantsermeervallen uit de familie van de Corydorassoorten. Aspido- ras-, Brochis- en Scleromystax-soorten vallen ook onder de Corydoras groep. Een mooie eigenschap van Corydorassen is dat het ontzorgers zijn voor de aquariumhouder. Het zijn namelijk uitstekende bodemschoonmakers.

Eén van de eerste en bekendste tropische aquariumvissen is de Betta splendens (1910). In Nederland staat hij ook bekend als de Siamese kemp- of vechtvis. Hoewel de familie van de Betta nog diverse andere soorten bevat, zijn het vooral de gekweekte vormen van de Betta splendens-mannen met hun oneindige kleurencombinaties en diversiteit in vinvormen die hebben bijgedragen aan de populariteit van deze vissen. Betta’s zijn een lust voor het oog, maar zijn ook wat betreft gedrag en broedzorg erg interessant. Bovendien zijn de vissen niet al te moeilijk te verzorgen en te huisvesten.

Objective To systematically review the relationship between lumbar proprioception and low back pain (LBP). Data Sources Four electronic databases (PubMed, EMBASE, CINAHL, SPORTDiscus) and reference lists of relevant articles were searched from inception to March-April 2014. Study Selection Studies compared lumbar proprioception in patients with LBP with controls or prospectively evaluated the relationship between proprioception and LBP. Two reviewers independently screened articles and determined inclusion through consensus. Data Extraction Data extraction and methodologic quality assessment were independently performed using standardized checklists. Data Synthesis Twenty-two studies (1203 participants) were included. Studies measured lumbar proprioception via active or passive joint repositioning sense (JRS) or threshold to detection of passive motion (TTDPM). Data from 17 studies were pooled for meta-analyses to compare patients with controls. Otherwise, descriptive syntheses were performed. Data were analyzed according to measurement method and LBP subgroup. Active JRS was worse in patients compared with controls when measured in sitting (standard mean difference, .97; 95% confidence interval [CI], .31–1.64). There were no differences between groups measured via active JRS in standing (standard mean difference, .41; 95% CI, −.07 to .89) or passive JRS in sitting (standard mean difference, .38; 95% CI, −.83 to 1.58). Patients in the O'Sullivan flexion impairment subgroup had worse proprioception than the total LBP cohort. The TTDPM was significantly worse in patients than controls. One prospective study found no link between lumbar proprioception and LBP. Conclusions Patients with LBP have impaired lumbar proprioception compared with controls when measured actively in sitting positions (particularly those in the O'Sullivan flexion impairment subgroup) or via TTDPM. Clinicians should consider the relationship between sitting and proprioception in LBP and subgrou

Patients with non-specific low back pain (LBP) may use postural control strategies that differ from healthy subjects. To study these possible differences, we measured the amount and structure of postural sway, and the response to muscle vibration in a working cohort of 215 subjects. Subjects were standing on a force plate in bipedal stance. In the first trial the eyes were open, no perturbation applied. In the following 6 trials, vision was occluded and subjects stood under various conditions of vibration/no vibration of the lumbar spine or m. Triceps Surae (TSM) on firm surface and on foam surface. We performed a factor analysis to reduce the large amount of variables that are available to quantify all effects. Subjects with LBP showed the same amount of sway as subjects without LBP, but the structure of their sway pattern was less regular with higher frequency content. Subjects with LBP also showed a smaller response to TSM vibration, and a slower balance recovery after cessation of vibration when standing on a solid surface. There was a weak but significant association between smaller responses to TSM vibration and an irregular, high frequency sway pattern, independent from LBP. A model for control of postural sway is proposed. This model suggests that subjects with LBP use more co-contraction and less cognitive control, to maintain a standing balance when compared to subjects without LBP. In addition, a reduced weighting of proprioceptive signals in subjects with LBP is suggested as an explanation for the findings in this study.

Item does not contain fulltext, BACKGROUND: Clinical practice guidelines are considered important instruments to improve quality of care. However, success is dependent on adherence, which may be improved using peer assessment, a strategy in which professionals assess performance of their peers in a simulated setting. OBJECTIVE: The aim of this study was to determine whether peer assessment is more effective than case-based discussions to improve knowledge and guideline-consistent clinical reasoning in the Dutch physical therapy guideline for low back pain (LBP). DESIGN: A cluster randomized controlled trial was conducted. SETTING AND PARTICIPANTS: Ten communities of practice (CoPs) of physical therapists were cluster randomized (N=90): 6 CoPs in the peer-assessment group (n=49) and 4 CoPs in the case-based discussion group (control group) (n=41). INTERVENTION: Both groups participated in 4 educational sessions and used clinical patient cases. The peer-assessment group reflected on performed LBP management in different roles. The control group used structured discussions. MEASUREMENTS: Outcomes were assessed at baseline and at 6 months. The primary outcome measure was knowledge and guideline-consistent reasoning, measured with 12 performance indicators using 4 vignettes with specific guideline-related patient profiles. For each participant, the total score was calculated by adding up the percentage scores (0-100) per vignette, divided by 4. The secondary outcome measure was reflective practice, as measured by the Self-Reflection and Insight Scale (20-100). RESULTS: Vignettes were completed by 78 participants (87%). Multilevel analysis showed an increase in guideline-consistent clinical reasoning of 8.4% in the peer-assessment group, whereas the control group showed a decline of 0.1% (estimated group difference=8.7%, 95% confidence interval=3.9 to 13.4). No group differences were found on self-reflection. LIMITATIONS: The small sample size, a short-term follow-up, and the use of vignettes as a proxy

The effect of alterations in the processing of proprioceptive signals, on postural control, has been studied using muscle vibration effects. However, reliability and agreement of muscle vibration have still to be addressed.This study aimed to assess intra- and interday reliability and agreement of vibration effects of lumbar paraspinal and triceps surae muscles in a non-selected sample of 20 subjects, standing on solid surface and on foam. We used mean position and velocity of Centre of Pressure (CoP), during and after vibration to quantify the effect of muscle vibration. We also calculated the ratio of vibration effects on the lumbar paraspinal and triceps surae muscles (proprioceptive weighting).Displacement of the CoP during vibration showed good reliability (ICCs. >. 0.6), and proprioceptive weighting of displacement fair to good reliability (0.52-0.73). Agreement measures were poor, with most CV's ranging between 18% and 36%. Change in CoP velocity appeared not to be reliable. Balance recovery, when based on CoP position and calculated a short period after cessation of vibration, showed good reliability. According to this study, displacement during vibration, proprioceptive weighting and selected recovery variables are the most reliable indicators of the response to muscle vibration. © 2014 Elsevier B.V.

A previous review concluded that postural sway is increased in patients with low back pain (LBP). However, more detailed analysis of the literature shows that postural deficit may be dependent on experimental conditions in which patients with LBP have been assessed. The research question to be answered in this review was: " Is there any difference in postural sway between subjects with and without LBP across several sensory manipulation conditions?" A literature search in Pubmed, Scopus, Embase and PsychInfo was performed followed by hand search and contact with authors. Studies investigating postural sway during bipedal stance without applying external forces in patients with specific and non-specific LBP compared to healthy controls were included. Twenty three articles fulfilled the eligibility criteria. Most studies reported an increased postural sway in LBP, or no effect of LBP on postural sway. In a minority of studies, a decreased sway was found in LBP patients. There were no systematic differences between studies finding an effect and those reporting no effect of LBP. The proportion of studies finding between-group differences did not increase with increased complexity of sensory manipulations. Potential factors that may have caused inconsistencies in the literature are discussed in this systematic review. © 2012 Elsevier B.V.

Background: In many sports, maintaining balance is necessary to compete at a high level. Also, in many health problems, balance is impaired. Postural sway (PS) is often used as an indicator of upright balance control, and physical activity (PA) might enhance balance control. However, the relationship between PS and PA has never been systematically reviewed. Objective: Our objective was to summarize the evidence regarding the relationship between PS in upright bipedal and unipedal standing and PA. Methods: We conducted a literature search in MEDLINE, EmBase, CINAHL, the Cochrane Database, and PEDro, up to March 2012, with no limit on the starting date. Characteristics and methodological aspects of each article were extracted by two reviewers. We used centre of pressure (CoP) velocity, and variables related to the CoP area, to compare studies. Results: A total of 39 articles were reviewed from an initial yield of 2,058. Of these 39 studies, 37 used a comparative design, one was a cohort study, and one was a randomized controlled trial. Conclusion: The main conclusion was that in general, sport practitioners sway less than controls, and high-level athletes sway less than low-level athletes. Additionally, we identified specific effects dependent on the use of vision, sport-specific postures, and frequency and duration of the (sports) activity. PS in unperturbed bipedal stance appears to have limited sensitivity to detect subtle differences between groups of healthy people. © 2013 Springer International Publishing Switzerland.

Item does not contain fulltext, Laboratory study using a repeated measures design. The aim of this study was to determine if ankle proprioception is targeted in exercises on unstable surfaces. Lateral ankle sprain (LAS) has recurrence rates over 70%, which are believed to be due to a reduced accuracy of proprioceptive signals from the ankle. Proprioceptive exercises in rehabilitation of LAS mostly consist of balancing activities on an unstable surface. The methods include 100 healthy adults stood barefoot on a solid surface and a foam pad over a force plate, with occluded vision. Mechanical vibration was used to stimulate proprioceptive output of muscle spindles of triceps surae and lumbar paraspinal musculature. Each trial lasted for 60 s; vibration was applied from the 15th till the 30th second. Changes in mean velocity and mean position of the center of pressure (CoP) as a result of muscle vibration were calculated. Results show that on foam, the effect of triceps surae vibration on mean CoP velocity was significantly smaller than on a solid surface, while for paraspinal musculature vibration the effect was bigger on foam than on solid surface. Similar effects were seen for mean CoP displacement as outcome. Exercises on unstable surfaces appear not to target peripheral ankle proprioception. Exercises on an unstable surface may challenge the capacity of the central nervous system to shift the weighting of sources of proprioceptive signals on balance.

© 2009, American Statistical Association. All rights reserved. Correspondence analysis (CA) is a popular method that can be used to analyse relationships between categorical variables. Like principal component analysis, CA solutions can be rotated both orthogonally and obliquely to simple structure without affecting the total amount of explained inertia. We describe a MATLAB package for computing CA. The package includes orthogonal and oblique rotation of axes. It is designed not only for advanced users of MATLAB but also for beginners. Analysis can be done using a user-friendly interface, or by using command lines. We illustrate the use of CAR with one example.