太極拳運動對中年人姿勢及步態控制之影響

目的：比較具1 年以上太極拳運動經驗之中年人與一般健康中年人，其平衡能力有關之姿勢及步態控制差異。方法：受試者分為兩組（太極拳組11 人，一般組15 人），以等速測力機收集下肢肌力及本體感覺之資料、以測力板收集靜態平衡能力表現（開眼雙腳站立、閉眼雙腳站立、開眼單腳站立及閉眼單腳站立）及以動作分析系統收集一般走路之步態資料，來探討有無接受太極拳運動對於平衡能力及步態之影響，所有資料以獨立樣本t 檢定分別考驗一般組與太極拳組於各變數之差異。結果：實驗結果經分析得知，兩組受試者之基本資料無顯著差異（p ＞ .05），而下肢肌力、本體感覺及步態控制之各項變數中有些變數太極拳組優於一般組，但其差異於統計上未達顯著（p ＞.05），僅在靜態平衡能力之開眼雙腳站立、閉眼雙腳站立、開眼單腳站立與閉眼單腳站立之足壓中心平均速度太極拳組顯著大於一般組且達顯著差異（p ＜ .05）。結論：本研究發現具1 年以上太極拳經驗者其在靜態平衡能力表現上足壓中心平均速度較一般健康中年人快，因此表示太極拳組平衡控制能力優於一般組。

關鍵字

下肢肌力；本體感覺；靜態平衡能力

並列摘要

Purpose: This study were to explore the difference of postural control and gait control between normal healthy middle-aged persons and middle-aged persons who experienced in Tai-Chi. Methods: Subjects divided into 2 groups (11 subjects in Tai-Chi group, 15 subjects in Normal group). We collected the data of lower extremity strength, proprioception, static balance performance (included eyes open with double legs stand, eyes close with double legs stand, eyes open with single leg stand, and eyes close with single leg stand) and parameters of normal gait by isokinetic dynamometer, force plate, and motion analysis system. The differences of all data between 2 groups were analyzed by using independent t -test. Results: The results of lower extremity strength, proprioception, and parameters of normal gait were no significant difference between Tai-Chi group and Normal group (p ＞.05). The COP (center of pressure) velocity of Tai-Chi group were significantly faster than Normal group in static balance performance (p ＜ .05). Conclusions: These results demonstrate that the middle-aged persons who experienced in Tai-Chi have postural control ability which faster than normal healthy middle-aged persons.