College of Nursing, University of Arizona, USA.
Clin Rehabil. 2012 Feb;26(2):121-31. doi: 10.1177/0269215511419381. Epub 2011 Sep 21.
Examine the safety and feasibility of a 12-week Tai Chi intervention among stroke survivors.
Two-group, prospective pilot study with random allocation.
Outpatient rehabilitation facility.
Stroke survivors ≥50 years and at ≥three months post-stroke.
Tai Chi subjects attended group-based Yang Style classes three times/week for 12-weeks, while Usual Care subjects received weekly phone calls along with written materials/resources for participating in community-based physical activity.
Indicators of study safety and feasibility included recruitment rates, intervention adherence, falls or adverse events, study satisfaction, drop-outs, and adequacy of the outcomes measures.
Interested persons pre-screened by phone (n = 69) were on average 68 years old, (SD = 13) years old, 48% (n = 33) women, 94% (n = 65) were at least three months post-stroke. A total of 28 subjects aged 69 (SD = 11) years enrolled in this pilot study. Intervention adherence rates were very high (≥92%). There were no falls or other adverse events. The dose of Tai Chi exercise (≥150 minutes/week) was well tolerated. Overall study satisfaction was high (8.3 (SD = 1.9); 1 = not satisfied, 10 = most satisfied), while drop-outs (n = 3, 11%) were unrelated to study intervention. Score distributions for the outcome measures were approximately normal, sensitive to change, and seemed to favor the Tai Chi intervention.
Tai Chi is a safe, community-based exercise program for stroke survivors. Our data suggest that recruitment and retention of an adequate sample is feasible, and that in a full-scale study 52 subjects/group are needed to detect statistically significant between group differences (alpha = 0.05, power = 0.80).
考察太极拳干预脑卒中幸存者的安全性和可行性。
两组、前瞻性、随机分组的试点研究。
门诊康复中心。
年龄≥50 岁且脑卒中后≥3 个月的脑卒中幸存者。
太极拳组每周参加 3 次的杨式集体课程，共 12 周，而常规护理组每周接受电话随访以及参加社区身体活动的书面材料/资源。
研究安全性和可行性的指标包括招募率、干预依从性、跌倒或不良事件、研究满意度、脱落率和结局测量的充分性。
通过电话预先筛选的感兴趣者（n = 69）的平均年龄为 68 岁（标准差 = 13）岁，48%（n = 33）为女性，94%（n = 65）至少在脑卒中后 3 个月。共有 28 名年龄为 69 岁（标准差 = 11）岁的受试者参加了这项试点研究。干预依从率非常高（≥92%）。没有跌倒或其他不良事件。太极拳运动的剂量（≥150 分钟/周）耐受良好。总的研究满意度很高（8.3（标准差 = 1.9）；1 = 不满意，10 = 最满意），而脱落者（n = 3，11%）与研究干预无关。结局测量的评分分布接近正态分布，对变化敏感，似乎有利于太极拳干预。
太极拳是一种安全、基于社区的脑卒中幸存者运动方案。我们的数据表明，招募和保留足够的样本是可行的，在一项全面的研究中，每组需要 52 名受试者才能检测到组间的统计学显著差异（α = 0.05，功效 = 0.80）。
