The concept of C-Mill gait adaptability training in the chronic phase after stroke is promising and warrants future research involving a randomized controlled trial.
A fter stroke, a main goal of rehabilitation is to promote independence in activities of daily living. An important determinant of activities of daily living performance is standing balance, which is a strong predictor of functional recovery 1,2 and walking capacity 3,4 and an important risk factor for falls 5 after stroke. Although the vast majority (75%) of people after stroke regain independent standing-balance capacity, 6 weightbearing asymmetry and increased postural sway often persist, as well as a diminished capacity to voluntarily shift body weight or to withstand external perturbations. 7 Hence, a keyBackground and Purpose-The purpose of this systematic review and meta-analysis was to investigate the effects of exercise training on balance capacity in people in the chronic phase after stroke. Furthermore, we aimed to identify which training regimen was most effective. Methods-Electronic databases were searched for randomized controlled trials evaluating the effects of exercise therapy on balance capacity in the chronic phase after stroke. Studies were included if they were of moderate or high methodological quality (PEDro score ≥4). Data were pooled if a specific outcome measure was reported in at least 3 randomized controlled trials. A sensitivity analysis and consequent subgroup analyses were performed for the different types of experimental training (balance and/or weight-shifting training, gait training, multisensory training, high-intensity aerobic exercise training, and other training programs). Results-Forty-three randomized controlled trials out of 369 unique hits were included. A meta-analysis could be conducted for the Berg Balance Scale (28 studies, n=985), Functional Reach Test (5 studies, n=153), Sensory Organization Test (4 studies, n=173), and mean postural sway velocity (3 studies, n=89). A significant overall difference in favor of the intervention group was found for the Berg Balance Scale (mean difference 2. Previous meta-analyses of the effects of exercise therapy on improving balance capacity have been inconclusive. [8][9][10][11] There seemed to be an effect of biofeedback training on postural sway and of repetitive task training on sit-to-stand activities, 8 but both types of training did not result in better performance on clinical tests of balance capacity. 9 In addition, it remained unclear which type of training regimen would be most effective. Furthermore, previous meta-analyses did not address whether training effects differed between poststroke stages. One systematic review reported that favorable effects of balance exercises were restricted to the chronic phase (≥6 months post onset), but a meta-analysis was not included to substantiate this statement. 12Nevertheless, several studies that have been published since suggest that exercise therapy may yield significant improvements in balance capacity in individuals in the chronic phase of stroke. 13,14 Evaluating the effects of exercise therapy in the chronic phase of stroke is of particular interest because the resu...
After stroke, the ability to make step adjustments during walking is reduced and requires more attention, which may cause problems during community walking. The C-Mill is an innovative treadmill augmented with visual context (e.g., obstacles and stepping targets), which was designed specifically to practice gait adaptability. The objective of this study was to determine whether C-Mill gait adaptability training can help to improve gait adjustments and associated attentional demands. Sixteen community-ambulating persons in the chronic stage of stroke (age: 54.8 ± 10.8 years) received ten sessions of C-Mill training within 5-6 weeks. Prior to and after the intervention period, participants performed an obstacle-avoidance task with and without a secondary attention-demanding auditory Stroop task to assess their ability to make gait adjustments (i.e., obstacle-avoidance success rates) as well as the associated attentional demands (i.e., Stroop success rates, stratified for pre-crossing, crossing, and post-crossing strides). Obstacle-avoidance success rates improved after C-Mill training from 52.4 ± 16.3 % at pretest to 77.0 ± 16.4 % at posttest (p < 0.001). This improvement was accompanied by greater Stroop success rates during the obstacle-crossing stride only (pretest: 62.9 ± 24.9 %, posttest: 77.5 ± 20.4 %, p = 0.006). The observed improvements in obstacle-avoidance success rates and Stroop success rates were strongly correlated (r = 0.68, p = 0.015). The ability to make gait adjustments and the associated attentional demands can be successfully targeted in persons with stroke using C-Mill training, which suggests that its underlying assumptions regarding motor control are appropriate. This study lends support and guidance for designing a randomized controlled trial to further examine the potential of C-Mill training for improving safe community ambulation after stroke.
ObjectiveTo investigate the effectiveness of Energetic, a self-management group program combining aerobic training, energy conservation management, and relapse prevention to improve social participation in patients with neuromuscular disease (NMD) and chronic fatigue.MethodsIn this multicenter, assessor-blinded, 2-armed randomized controlled trial with repeated measurements, 53 patients with various types of NMD and chronic fatigue were randomly allocated to Energetic, a 4-month group intervention, or to usual care. The primary endpoint was social participation assessed with the Canadian Occupational Performance Measure (COPM) performance scale immediately postintervention. Secondary outcomes included COPM satisfaction scale, 6-Minute Walk Test (6MWT), and Checklist Individual Strength–subscale fatigue. Participants were followed for 11 months postintervention. Data were analyzed with linear models that account for repeated measurements.ResultsDirectly after intervention, the mean group difference for COPM-performance was 1.7 (95% confidence interval [CI] 1.0–2.4; p < 0.0001) in favor of the intervention group (n = 29), adjusted for baseline, sex, diagnosis, and work status. This effect was retained at 11 months follow-up (0.9; 95% CI 0.0–1.7; p = 0.049). The COPM satisfaction scale and 6MWT improved more in the intervention group compared to usual care. After 3 and 11 months follow-up, most beneficial effects on social participation and functional endurance were retained.ConclusionEnergetic led to sustainable improvements in social participation and functional endurance compared to usual care in patients with NMD and chronic fatigue.Clinicaltrials.gov identifierNCT02208687.Classification of evidenceThis study provides Class III evidence that a combination of aerobic training, energy conservation management, and relapse prevention improves social participation in patients with NMD and chronic fatigue.
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