스쿼트 동작 시 발목각도에 따른 대학생들의 다리 근활성도와 근육두께에 미치는 영향
Effects of Lower Extremity Muscle Activity and Muscle Thickness to Ankle Angle during Squatting of College Students
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초록
목적 : 본 연구의 목적은 안정된 바닥에서 발목의 3가지의 각기 다른 각도에 따라 체중부하를 받는 발목관절 주변 근육의 근활성도와 근육두께의 차이를 알아보고자 진행되었다. 방법 : 연구의 대상자로는 20대 성인 남녀 14명을 대상으로 선정하였으며 모두 사전에 동의절차를 진행하였다. 실험군은 발목의 내측과 외측 모두 20°가되도록 스쿼트 동작을 취하였고 주 2회, 4주간 실시하였다. 수집된 데이터는 Windows용 SPSS 21.0 버전을 이용하여 독립 t검정과 대응표본 t검증을 진행하였다. 결과 : 스쿼트 운동 시 발목 각도에 따른 하지 근육 활성도와 하지 두께 변화를 살펴본 결과는 20도 실험 후 내측광근, 대퇴직선근, 광광근에서 유의한 개선을 보였다. 넓은 근육, 곧은 다리 및 넓은 근육에서 상당한 개선이 나타났습니다. 결론 : 스쿼트 운동 시 내측광근의 효과적인 강화를 위해서는 발자세를 안쪽이나 중립자세보다 피하지방 상태에서 수행하는 것이 더 효과적이라고 생각된다.
Abstract
Purpose : The purpose of this study was to investigate the difference of muscle activity and muscle thickness of the surrounding muscles of the ankle joint, which receives weight load according to the angle of the ankle on the stable floor. Method : The experimental group squatted the ankle angle to 20 ° for both inward and lateral ankles, and the experiment was performed for 45 weeks twice a week for four weeks. The collected data was analyzed using SPSS 21.0 version for Windows. Results : As a result of examining the changes of lower extremity muscle activity and lower extremity thickness during squat exercise according to the ankle angle, significant improvement was found in medial broad muscle, thigh straight muscle, and wide broad muscle after 20 degrees experiment. Significant improvements were seen in the broad muscles, straight leg, and wide muscles. Conclusion : It is thought that it is more effective to perform the foot position in the scutaneous state than in the inward or neutral position for the effective strengthening of the inner broad muscle during squat exercise.
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