A good beginning: study protocol for a group-randomized trial to investigate the effects of sit-to-stand desks on academic performance and sedentary time in primary education.

BACKGROUND: Sedentary behavior is associated with health risks and academic under-achievement in children. Still, children spend a large part of their waking hours sitting at a desk at school. Recent short-term studies demonstrated the potential of sit-to-stand desks to reduce sitting time in primary education. The program of "A Good Beginning" was conceived to assess the long-term effects of sit-to-stand desks on sitting time in primary education, and to examine how sit-to-stand desks versus regular desks relate to academic performance, and measures of executive functioning, health and wellbeing. The present paper describes the design of this group-randomized trial, which started in 2017 and will be completed in 2019. METHODS: Children of two grade-three groups (age 8-9) following regular primary education in Leiden, The Netherlands, were recruited. A coin toss determined which group is the experimental group; the other group is the control group. All children in the experimental group received sit-to-stand desks. They are invited and motivated to reduce sedentary time at school, however, it is their own choice to sit or stand. Children in the control group use regular desks. Otherwise, both groups receive regular treatment. Outcomes are assessed at baseline (T0) and at five follow-up sessions (T1-T5) alternately in winter and summer seasons over three academic years. Primary outcome measures are academic performance, and the proportion of sitting time at school, measured with a 3D accelerometer. Secondary outcome measures are a number of measures related to executive functioning (e.g., N-back task for working memory), health (e.g., height and weight for BMI), and wellbeing (e.g., KIDSCREEN-52 for Quality of Life). DISCUSSION: A Good Beginning is a two-and-a-half-year research program, which aims to provide a better understanding of the long-term effects of sit-to-stand desks on sedentary time at school and the relation between sitting time reduction and academic performance, executive functioning, health and wellbeing. The findings may serve as useful information for policy making and practical decision making for school and classroom environments. TRIAL REGISTRATION: The program of "A Good Beginning" is registered at the Netherlands Trial Register (NTR, https://www.trialregister.nl), number NL6166, registration date 24 November 2016.

Being Active, Engaged, and Healthy: Older Persons' Plans and Wishes to Age Successfully.

OBJECTIVES: This study took an emic multidimensional approach on successful aging and examined what older people consider important to age successfully by asking them about their plans and wishes (PWs). Associations between participants' demographics, health status, working life, social contacts, life satisfaction, and their PWs were investigated. METHOD: An online questionnaire was completed by 649 older individuals (55-90 years). Conceptual content analysis was performed to identify important categories in PWs. Quantitative analyses were conducted to examine associations between PWs and participants' characteristics. RESULTS: Most mentioned PWs were related to activities, engagement with life, and health. Seventy-four participants (11.4%) expressed no PWs. Multivariate analysis revealed that having PWs was most strongly related to participants' life satisfaction. Older individuals with a higher life satisfaction indicated significantly more often to have PWs than individuals with a lower life satisfaction. DISCUSSION: The majority of older people desire an active, engaged, and healthy life. PWs were variable and personal, which endorses an emic, multidimensional approach to successful aging. Knowledge on what older individuals find important in their lives and what they want to achieve can assist older individuals in setting and attaining their goals toward aging well.

Unilateral and bilateral upper-limb training interventions after stroke have similar effects on bimanual coupling strength.

BACKGROUND: Bilateral training in poststroke upper-limb rehabilitation is based on the premise that simultaneous movements of the nonparetic upper limb facilitate performance and recovery of paretic upper-limb function through neural coupling effects. OBJECTIVE: To determine whether the degree of coupling between both hands is higher after bilateral than after unilateral training and control treatment. METHODS: In a single-blinded randomized controlled trial, we investigated rhythmic interlimb coordination after unilateral (mCIMT) and bilateral (mBATRAC) upper-limb training and a dose-matched control treatment (DMCT) in 60 patients suffering from stroke. To this end, we used a series of tasks to discern intended and unintended coupling effects between the hands. In addition, we investigated the control over the paretic hand as reflected by movement harmonicity and amplitude. All tasks were performed before and after a 6-week intervention period and at follow-up 6 weeks later. RESULTS: There were no significant between-group differences in change scores from baseline to postintervention and from postintervention to follow-up with regard to interlimb coupling. However, the mBATRAC group showed greater movement harmonicity and larger amplitudes with the paretic hand after training than the mCIMT and DMCT groups. CONCLUSIONS: The degree of coupling between both hands was not significantly higher after bilateral than after unilateral training and control treatment. Although improvements in movement harmonicity and amplitude following mBATRAC may indicate a beneficial influence of the interlimb coupling, those effects were more likely due to the particular type of limb movements employed during this training protocol.

Unilateral versus bilateral upper limb training after stroke: the Upper Limb Training After Stroke clinical trial.

BACKGROUND AND PURPOSE: Unilateral and bilateral training protocols for upper limb rehabilitation after stroke represent conceptually contrasting approaches with the same ultimate goal. In a randomized controlled trial, we compared the merits of modified constraint-induced movement therapy, modified bilateral arm training with rhythmic auditory cueing, and a dose-matched conventional treatment. Modified constraint-induced movement therapy and modified bilateral arm training with rhythmic auditory cueing targeted wrist and finger extensors, given their importance for functional recovery. We hypothesized that modified constraint-induced movement therapy and modified bilateral arm training with rhythmic auditory cueing are superior to dose-matched conventional treatment. METHODS: Sixty patients, between 1 to 6 months after stroke, were randomized over 3 intervention groups. The primary outcome measure was the Action Research Arm test, which was conducted before, directly after, and 6 weeks after intervention. RESULTS: Although all groups demonstrated significant improvement on the Action Research Arm test after intervention, which persisted at 6 weeks follow-up, no significant differences in change scores on the Action Research Arm test were found between groups postintervention and at follow-up. CONCLUSIONS: Modified constraint-induced movement therapy and modified bilateral arm training with rhythmic auditory cueing are not superior to dose-matched conventional treatment or each other in improving upper limb motor function 1 to 6 months after stroke. CLINICAL TRIAL REGISTRATION URL: http://www.trialregister.nl. Unique identifier: NTR1665.

Match and mismatch between objective and subjective improvements in upper limb function after stroke.

PURPOSE: To identify stroke patients showing a match between an objectively meaningful improvement in upper-limb motor capacity and subjectively meaningful improvement in upper-limb performance after stroke, as well as determinants of matching and non-matching. METHODS: Changes in upper-limb capacity in 39 stroke patients were measured over 17 weeks using the Action Research Arm Test (ARAT). Subjective change was measured with the Stroke Impact Scale Hand domain (SIS-Hand) and the Motor Activity Log (MAL). Patients showing a match between objective and subjective improvements (matchers) and patients showing a mismatch (non-matchers) were identified. Subsequently, determinants for the matchers were modeled using a logistic regression analysis. RESULTS: A significant association was found between improvements on the ARAT and MAL (p = 0.011), but not for improvements on the ARAT and SIS-Hand. For the ARAT and SIS-Hand level of education and mood significantly improved the model. The probability of a match between objective and subjective outcomes in lower-educated patients with a positive mood was estimated to be 0.83, whereas in higher-educated patients with a negative mood it was estimated to be 0.07. CONCLUSIONS: Mismatches between objective and subjective outcomes are relevant for practitioners evaluating rehabilitation goals, and for defining outcome variables in future upper limb rehabilitation trials. Implications for Rehabilitation In upper limb rehabilitation after stroke, a match between capacity and self-perception outcome measures is not self-evident. Regarding these potential mismatches, practitioners and patients should consider carefully which goals to set, and how to evaluate upper limb rehabilitation after stroke; preferably with capacity measures and self-perception measures combined.

A systematic review of bilateral upper limb training devices for poststroke rehabilitation.

Introduction. In stroke rehabilitation, bilateral upper limb training is gaining ground. As a result, a growing number of mechanical and robotic bilateral upper limb training devices have been proposed. Objective. To provide an overview and qualitative evaluation of the clinical applicability of bilateral upper limb training devices. Methods. Potentially relevant literature was searched in the PubMed, Web of Science, and Google Scholar databases from 1990 onwards. Devices were categorized as mechanical or robotic (according to the PubMed MeSH term of robotics). Results. In total, 6 mechanical and 14 robotic bilateral upper limb training devices were evaluated in terms of mechanical and electromechanical characteristics, supported movement patterns, targeted part and active involvement of the upper limb, training protocols, outcomes of clinical trials, and commercial availability. Conclusion. Initial clinical results are not yet of such caliber that the devices in question and the concepts on which they are based are firmly established. However, the clinical outcomes do not rule out the possibility that the concept of bilateral training and the accompanied devices may provide a useful extension of currently available forms of therapy. To actually demonstrate their (surplus) value, more research with adequate experimental, dose-matched designs, and sufficient statistical power are required.

Comparing unilateral and bilateral upper limb training: the ULTRA-stroke program design.

BACKGROUND: About 80% of all stroke survivors have an upper limb paresis immediately after stroke, only about a third of whom (30 to 40%) regain some dexterity within six months following conventional treatment programs. Of late, however, two recently developed interventions--constraint-induced movement therapy (CIMT) and bilateral arm training with rhythmic auditory cueing (BATRAC)--have shown promising results in the treatment of upper limb paresis in chronic stroke patients. The ULTRA-stroke (acronym for Upper Limb TRaining After stroke) program was conceived to assess the effectiveness of these interventions in subacute stroke patients and to examine how the observed changes in sensori-motor functioning relate to changes in stroke recovery mechanisms associated with peripheral stiffness, interlimb interactions, and cortical inter- and intrahemispheric networks. The present paper describes the design of this single-blinded randomized clinical trial (RCT), which has recently started and will take several years to complete. METHODS/DESIGN: Sixty patients with a first ever stroke will be recruited. Patients will be stratified in terms of their remaining motor ability at the distal part of the arm (i.e., wrist and finger movements) and randomized over three intervention groups receiving modified CIMT, modified BATRAC, or an equally intensive (i.e., dose-matched) conventional treatment program for 6 weeks. Primary outcome variable is the score on the Action Research Arm test (ARAT), which will be assessed before, directly after, and 6 weeks after the intervention. During those test sessions all patients will also undergo measurements aimed at investigating the associated recovery mechanisms using haptic robots and magneto-encephalography (MEG). DISCUSSION: ULTRA-stroke is a 3-year translational research program which aims (1) to assess the relative effectiveness of the three interventions, on a group level but also as a function of patient characteristics, and (2) to delineate the functional and neurophysiological changes that are induced by those interventions.The outcome on the ARAT together with information about changes in the associated mechanisms will provide a better understanding of how specific therapies influence neurobiological changes, and which post-stroke conditions lend themselves to specific treatments. TRIAL REGISTRATION: The ULTRA-stroke program is registered at the Netherlands Trial Register (NTR, http://www.trialregister.nl, number NTR1665).