Short-form Tai Chi Improves Standing Balance of People With Chronic Stroke
Short-form Tai Chi Improves Standing Balance of People With Chronic Stroke
复制标题
DOI：
10.1177/1545968308326425
复制
发表时间：
2009-06-01
影响因子：
4.2
通讯作者：
Tang, Jervis C. S.
中科院分区：
文献类型：
--
作者：
Au-Yeung, Stephanie S. Y.;Hui-Chan, Christina W. Y.;Tang, Jervis C. S.
背景和目标。我们以前的研究结果表明，4周的密集太极练习改善了健康老年人的站立平衡。本研究旨在探讨太极拳是否可以改善慢性中风患者的站立平衡。方法. 136名中风后>6个月的受试者被随机分配到对照组（n = 62），进行12周的训练。每周，1小时的小组练习辅以3小时的自我练习。我们使用了一种短形式的太极拳，由12种形式组成，需要全身动作以连续的顺序进行，并要求集中注意力。设盲评估者在基线、6周（项目中期）、12周（项目结束）和18周（随访）时检查受试者。3项结局指标为：（1）在4个方向上自我启动身体倾斜期间通过重心（COG）偏移评估动态站立平衡，（2）在感觉挑战条件下评估站立平衡，以及（3）通过定时起身和行走评分评估功能移动性。使用混合模型重复测量方差分析来检查组间差异。结果与对照组相比，太极组在程序结束和随访评估中显示出更大的重心偏移幅度，向前倾斜，向后倾斜，以及向受影响和未受影响的一侧倾斜（P <0.05），以及向未受影响的一侧移动重心的反应时间更快（P = 0.014）。太极组也表现出更好的依赖前庭整合平衡控制结束程序（P = 0.038）。然而，两组在定时起身和行动评分方面都没有显著改善。结论. 12周的短形式太极产生了特定的站立平衡改善慢性中风的人，持续6周的训练。
Background and Objective. Our previous findings showed that 4 weeks of intensive Tai Chi practice improved standing balance in healthy seniors. This study set out to investigate whether Tai Chi could improve standing balance in subjects with chronic stroke. Methods. One hundred thirty-six subjects >6 months after stroke were randomly assigned to a control group (n = 62) practicing general exercises or a Tai Chi group (n = 74) for 12 weeks of training. Each week, 1 hour of group practice was supplemented by 3 hours of self-practice. We used a short-form of Tai Chi consisting of 12 forms that require whole-body movements to be performed in a continuous sequence and demands concentration. A blinded assessor examined subjects at baseline, 6 weeks (mid-program), 12 weeks (end-program), and 18 weeks (follow-up). The 3 outcome measures were (1) dynamic standing balance evaluated by the center of gravity (COG) excursion during self-initiated body leaning in 4 directions, (2) standing equilibrium evaluated in sensory challenged conditions, and (3) functional mobility assessed by Timed-up-and-go score. Mixed model repeated-measures analysis of variance was used to examine between-group differences. Results. When compared with the controls, the Tai Chi group showed greater COG excursion amplitude in leaning forward, backward, and toward the affected and nonaffected sides (P < .05), as well as faster reaction time in moving the COG toward the nonaffected side (P = .014) in the end-program and follow-up assessments. The Tai Chi group also demonstrated better reliance on vestibular integration for balance control at end-program (P = .038). However, neither group improved significantly in Timed-up-and-go scores. Conclusions. Twelve weeks of short-form Tai Chi produced specific standing balance improvements in people with chronic stroke that outlasted training for 6 weeks.