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題名 | 足外旋擺位之腳踏車訓練對股內斜肌與股外側肌神經活化功能的影響=Effect of Cycling Training with Foot External Rotation on Neuromuscular Function of Vastus Medialis Oblique and Vastus Lateralis |
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作者 | 張維綱; 傅麗蘭; Chang, Wei-gang; Fu, Li-lan; |
期刊 | 大專體育學刊 |
出版日期 | 20130600 |
卷期 | 15:2 2013.06[民102.06] |
頁次 | 頁247-256 |
分類號 | 528.9012 |
語文 | chi |
關鍵詞 | 肌電圖; 階梯測驗; 腳踏車運動; 髕骨股骨關節; Electromyography; Stair-stepping task; Cycling exercise; Patellofemoral joint; |
中文摘要 | 腳踏車踩踏運動經常被採用做為膝部神經肌肉訓練的方式之一,最近的研究指出當訓練過程搭配膝外旋式擺位能有效提升股內斜肌(vastus medialis oblique, VMO)活化優勢,部分學者也建議以此進行連續性訓練以提升膝部神經活化的能力,但長期訓練之效益仍然未獲證實,因此本研究之目的為探討腳踏車運動搭配外旋式擺位時之訓練效益。總共召募30位健康年輕男性,並隨機分成外旋45度(外旋組)、0 度(中立組)與傳統擺位(控制組)。三組皆接受為期8週、每週3次、每次20分鐘的腳踏車訓練,訓練前後以階梯測驗進行評估,測試過程中以表面肌電儀收集VMO與股外側肌(vastus lateralis, VL)之神經肌肉功能參數。上階梯測驗結果顯示外旋擺位組於訓練後VMO相對VL活化時間差顯著減小。下階梯測驗結果顯示外旋擺位組後側之VMO相對VL 活化時差顯著小於中立組與控制組;外旋擺位組於訓練後VMO活化時間點顯著減小;外旋擺位與中立組於訓練後VMO相對VL 開始活化時間差顯著減小,其他參數在三組間或訓練前後皆無顯著差異。本研究結論支持8週外旋式擺位腳踏車訓練比起中立或傳統擺位更能改善健康男性之VMO活化反應時間,但對於VMO:VL 活化比值並無顯著效益。 |
英文摘要 | Cycling exercise is one of the neuromuscular training for knee joints. Recent study showed that cycling exercise with foot external rotation (ER) could induce more preferential vastus medialis oblique (VMO) activation than neutral position. Besides, it is known that neuromuscular function of the knee could be increased by the continuous training. However, the long-term training effect is still under-investigated. The purpose of this study was to determine the effect of continuous cycling training with foot ER on neuromuscular functions. Thirty male young subjects were randomly divided into neutral, ER 45° and control groups. All subjects trained three times a week for 8 weeks, each session lasted for 20 mins on cycle ergometer. The foot position in the control group was determined by subjects. Electromyography (EMG) onset time and activities of VMO and vastus lateralis (VL) were collected during ascending and descending of a stair-stepping task that was performed before and after the training. During ascending, results showed that ER 45° group had significantly smaller VMO relative VL onset time difference after training. During descending, ER 45° group had significantly smaller VMO relative VL onset time difference than neutral and control groups at post-test. ER 45° group had significantly smaller VMO relative VL onset time difference and VMO onset time. Neutral group had significantly smaller VMO relative VL onset time difference after training during descending. These results suggest that reflex response times of vastus medialis oblique of healthy male subjects could be improved after 8-week cycling training with foot ER, but VMO:VL ratio did not change significantly after training. |
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