外側踝關節扭傷後在不同平衡任務的姿勢控制：適應良好者與適應不良者

Postural Control During Various Balance Tasks After Lateral Ankle Sprains: Copers Versus Non-Copers

莊丰源(Feng-Yuan Chuang)

指導教授 ： 劉玫舫

高雄醫學大學/健康科學院/物理治療學系碩士班/碩士(2017年)

摘要

研究背景與目的：外側踝關節扭傷常見於體育和娛樂活動。扭傷後會重複發生扭傷或踝關節不穩定而發展成慢性踝關節不穩定(即適應不良者)，但有些人則可成為適應良好者，可以回復到扭傷前的功能狀況且不會發生再次扭傷或關節不穩定。本研究目的是探討外側關節扭傷後適應良好與適應不良的個案在三項平衡測試任務中姿勢控制能力的差異，並與健康人做比較。
研究方法：受試者包括適應不良組、適應良好組和控制組，每組20名。使用力板參數評估睜眼與閉眼單腳站立測試和星狀平衡任務的姿勢控制的能力，包括地面反作用力標準差、壓力中心標準差、壓力中心移動範圍、壓力中心移動範圍百分比、壓力中心平均移動距離、壓力中心最大移動距離、壓力中心移動速度、壓力中心整體移動速度和壓力中心95%信賴橢圓面積，以及評估單腳跳落地測試姿勢控制的能力，評估參數包括恢復穩定時間和動態姿勢穩定指標。
研究結果：適應不良組與適應良好組之間在睜眼單腳站立測試中前後方向的壓力中心標準差、壓力中心移動範圍、壓力中心平均移動距離、壓力中心最大移動距離和95%信賴橢圓面積都有顯著差異，後-內星狀平衡任務中大部分的壓力中心測量參數都有顯著差異，在單腳跳落地測試中內-外方向的恢復穩定時間和穩定指標有顯著差異。而適應良好組與控制組之間在三項平衡測試任務中的測量參數皆沒有顯著差異。
結論：外側踝關節扭傷後適應良好者在睜眼單腳站立測試、後-內星狀平衡任務和單腳跳落地測試的姿勢控制能力都顯著優於適應不良者。而適應良好者與健康人的姿勢控制能力並沒有差異。

關鍵字

慢性踝關節不穩定 ； 適應良好 ； 力板 ； 姿勢控制

並列摘要

Background and Purpose: Lateral ankle sprain (LAS) is one of the most common injuries in physical activity. Some individuals had recurrent injury, fell of instability or loss of function who develop chronic ankle instability (CAI, i.e., non-copers), while copers was return to high-level activities (running, jumping) without instability and symptoms. The purpose of this study was to assess LAS copers, non-coper, and healthy controls to compare postural control ability during various balance tasks.
Methods: Twenty individuals with CAI, twenty LAS copers and twenty subjects with no history ankle sprain injury participated. Postural control was assessed during single leg stance with open and close eyes, and star excursion balance task (SEST) by using force plate measure in both medial/lateral (M/L) and anterior/posterior (A/P) direction included the follow: ground reaction force standard deviation, center of pressure (COP) standard deviation, amplitude of COP displacement, percentage of amplitude of COP displacement, mean COP excursion, maximum COP excursion, mean COP velocity, total COP velocity and 95% confidence ellipse area. Time to stabilization and dynamic postural stability index quantified single leg drop jump landing.
Results: During single leg stance with open eyes, the non-coper group had greater A/P COP standard deviation, amplitude of center of pressure displacement, mean COP excursion, maximum COP excursion and 95% confidence ellipse area. Most of COP measures during SEBT posteromedial reaches, M/L time to stabilization and M/L dynamic postural stability index during single leg drop jump landing were significantly different between LAS copers and non-copers.
Conclusion: Individuals with CAI had poorer postural control than LAS copers during single leg stance with open eyes, SEBT posteromedial reaches and single leg drop jump landing.

並列關鍵字

Chronic ankle instability ； Coper ； Force plate ； Postural control

參考文獻

參考文獻

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