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논문 기본 정보

자료유형
학술저널
저자정보
윤세라 (전주대학교) 김지원 (전주대학교) 송다은 (전주대학교) 이보람 (전주대학교) 이정현 (전주대학교) 김용욱 (전주대학교)
저널정보
KEMA학회 근골격계과학기술학회 근골격계과학기술학회 제3권 제2호
발행연도
2019.1
수록면
31 - 37 (7page)

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Background Previous studies have reported various advantages of general squat for functional activities. However, no study has reported the effect of lower leg muscle activity during squat on ankle stability with different supporting surface conditions. Purpose To investigate the effect of various support surfaces on lower leg muscle activation during squat performance and identify an effective way to prevent ankle injuries by increasing ankle stability. Study design Cross-sectional study. Methods Twenty healthy adults were recruited to compare lower leg muscle activation during squat performance on various support surfaces. Electromyographic activity was measured for tibialis anterior (TA), peroneus longus (PL), medial gastrocnemius (GCM), and lateral GCM muscles. Lower leg muscle activity during squat performance was calculated using mean value measured three times on each support surface. Repeated 3 × 2 two-way ANOVA measurements (surface conditions × leg sides) with Bonferroni’s correction was used to compare lower leg muscle activity from both sides on various support surfaces during squat exercise. Results TA muscle activity during squat performance under balance pad (BP) condition was significantly greater than that under togu (TG) condition (p<0.05). PL muscle activity during squat performance was significantly greater under bottom floor (BF) condition than that under BP or TG condition (p<0.05). Medial GCM muscle activity during squat performance was significantly greater under BP condition than that under BF or TG condition (p<0.05). TA and medial GCM muscle activities were the highest under BP condition, followed by those under BF and TG conditions. PL and lateral GCM muscle activities were the highest under BF condition, followed by those under BP and TG conditions. Conclusions For anteroposterior muscles of the lower leg, squat exercise needs to be performed on a slightly unstable support surface such as a BP. For lateral muscles of the lower leg, squat exercise needs to be performed on stable support surface such as BF.

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