20周太极锻炼对老年女性下肢关节运动觉影响

The effects of 20 weeks' Taiji exercise on elder women's kinestness of their joint of lower extremity

目的：探讨有规律的24式简化太极锻炼对老年女性膝、踝关节运动觉的影响。方法：36名无跌倒史的老年女性（60~65岁）随机分成年龄、身高、体重相匹配的太极组与对照组。采用膝、踝关节本体感觉测试仪在20周前后，分别对两组受试者优势腿的膝、踝关节运动觉进行测试。结果：1）20周后太极组膝关节的屈、伸运动觉在原有基础上显著改善（屈减小了37.2%、P =0.045，伸减小了25.1%、P =0.017），太极组与对照组相比，膝关节屈、伸运动觉具显著性差异（屈减小了33.3%、P =0.039，伸减小了21.6%、P =0.021）；2）20周后，太极组踝关节屈运动觉显著减小（屈减小了21.8%、P =0.030）。太极组与对照组相比表现出屈显著减小（屈减小了16.5%、P =0.042）。结论：20周的太极锻炼显著改善了老年女性膝关节屈伸和踝关节屈的运动觉，但是对踝关节伸改善不显著。

Purpose：To explore the impact of 20 weeks of regular 24 - Taiji exercise on the kinesthesia of aged women in their knees and ankles. Methods：36 aged women with no tumbling history（aged 60 ~ 65）randomly into a Taiji team and a contrasting team,and there is no significant difference between the two teams concerning the subjects’age,stature and body weight. Use a proprioceptive tester to respectively test the knee and ankle of the subjects’leg dominance before and after the 20 - week cycle. Result：Firstly,20 weeks later,compared with the original bases,a significant alteration has been made on the Taiji team members ’ kinestheses of their knee’s flexion and extension（ flexion reduced by 37. 2% ,P = 0. 045, extension reduced by 25. 1% ,P = 0. 017）. Contrasted with control group,there is a remarkable change between the two（the former reduced by 33. 3% ,P = 0. 039,the latter reduced by 21. 6% ,P = 0. 021）. Secondly,twenty weeks later,Taiji team members’ankle motion perception of its flexion has also reduced（flexion reduced by 16. 5% ,P = 0. 030）. A big difference has been generated between Taiji team and control group,the former one’s flexion has reduced by 16. 5%（P = 0. 042）. Conclusion：20 weeks’Taiji exercise mainly affects the elder women’s knee kinestheses of its flexion and extension and ankle kinestheses of its flexion,while the improvement on ankle’s extension is unobserved.