| Summary: | 碩士 === 高雄醫學大學 === 物理治療學系碩士班 === 104 === Background and Purpose: Visual feedback has shown to be effective in motor relearning following stroke. This study were designed to explore the efficacy of weight-shift training, by providing a rear-time visual feedback of center-of-gravity position or weight distribution, on balance and walking following stroke. Therefore, the primary purposes of this study was to determine whether the weight-shift training with feedback of center-of- gravity position and weight distribution in stroke patients was effective in decreasing their balance function and walking ability, and we also to explore the relationship between weight-bearing symmetry/ weight- shifting ability and balance function/ walking ability in stroke patients. In addition, the secondary purposes were to establish the indexes of weight- bearing symmetry and weight-shifting ability and their test-retest reliability in healthy young adults. The inclusion of the healthy adults was just a reference for the stroke patients. Methods: Twenty young adults and 7 stroke patients were recruited. Healthy adults and stroke patients accepted two measurements within a week. Balance function, gait ability, weight- distribution and weight-shifting during sit-to-stand, quite standing, and weight-shifting toward the forward foot. In addition, the stroke patients received a weight-shifting training program , 30 minutes/time, 2-5 days a week for 2-3 weeks(8 sessions). After training, they accepted a post-test within a week. Intraclass correlation coefficient was used for confirming test-retest reliability. Mann-Whitney U test was used for comparing pre-test and post-test, and Wilcoxon signed rank test was used for comparing healthy and stroke patients. Spearman correlation was used for investigating relationship between weight-distribution, weight-shifting, balance function, and walking ability. Results: For the stroke group, the indexes of weight-bearing symmetry and weight-shifting ability in the tasks of sit-to-stand, quiet standing, and weight-shifting toward the forward foot has moderate to good test-retest reliability（ICC=0.58-0.99）. After training, the weight-bearing symmetry and weight-shifting ability of stroke patients have improved and the weight-shifting ability was significant correlated to the balance function and walking ability. Conclusions: The results of this study suggest that the weight-shift training with visual feedback have a positive effect on balance function and walking ability in stroke patients, and the weight-bearing symmetry and weight-shifting ability were positively correlated with their balance function and walking ability. In addition, the test-retest reliability of the indexes of weight-bearing symmetry and weight-shifting ability which established in this study are good.
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