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내림 경사대에서 한 다리 스쿼트 운동 시 경사면과 자세변화에 따른 무릎주변근의 근활성도

Activation of Knee Muscles on Various Decline Boards and Postures During Single Leg Decline Squat Exercise

이충휘|권오윤|전혜선|유원규
한국전문물리치료학회 (Korean Research Society of Physical Therapy)|2005.09|한국전문물리치료학회지 (Physical Therapy Korea)|제12권 제3호|pp. 22-30

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참고문헌

주제분류물리치료학

초록

Abstract

This study was designed to identify the effect of various decline boards and postures of lower extremities on surface electromyographic (EMG) activity of knee muscles during isometric single-leg decline squat exercises. The subjects were twenty young male adults who had not experienced any knee injury and their Q-angles were within a normal range. They were asked to perform single-leg decline squat exercises in five various conditions. The EMG activities of the gluteus maximus (GM), vastus lateralis (VL), vastus medialis (VMO), tibialis anterior (TA), and gastrocnemius (GCM) muscles were recorded in five various single-leg decline squat exercises by surface electrodes and normalized by maximal voluntary isometric contraction (MVIC) values. The normalized EMG activity levels were compared using one-way ANOVA with repeated measures. The results of this study were as follows: 1) Exercises 2 and 4 produced significantly greater EMG activity of VMO than did exercise 1 (padj<.05/10), 2) The VMO/VL ratio of EMG activity of exercise 4 was the highest, producing a significantly greater ratio than exercise 1 (padj<.05/10). These results show that single-leg lateral oblique decline squat exercise is the best exercise for selective strengthening of VMO, and the posture of the contralateral leg does also affect strengthening of VMO, but we'll need to research patellofemoral joint compression for clinical application of single-leg lateral oblique decline squat exercises.

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