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논문 기본 정보

자료유형
학술저널
저자정보
Song, Hyeong Kyeong (Department of Physical Education, Graduate School of Konkuk University) So, Jae Moo (Department of Physical Education, College of Education, Konkuk University)
저널정보
한국운동역학회 한국운동역학회지 한국운동역학회지 제29권 제3호
발행연도
2019.1
수록면
185 - 196 (12page)

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Objective: The aim of this study was to suggest correct and effective way of squat through biomechanical analysis variables on the change of the toe-out angle. Method: 7 high school male weightlifter (age: $17.57{\pm}0.53yrs$, height: $174.0{\pm}3.93cm$, weight: $81.0{\pm}9.17kg$, 1RM: $164.29{\pm}20.7kg$) participated in this study. Results: Angle of the hip joint at E2 was smaller than toe-out angle was in $20^{\circ}$ than in $0^{\circ}$ (p<.05). Angular velocity of the foot joint at E1 and E3 was quicker that in $10^{\circ}$ than in $30^{\circ}$ (p<.05). Anterior-posterior stability index was greater that toe-out angle was in $30^{\circ}$ than in $0^{\circ}$ (p<.05). In average iEMG of flexion phase, VM of right, left leg showed high activity at toe-out angle $30^{\circ}$. In average iEMG of flexion phase, extension phase and in peak iEMG, RF of right leg, VM and VL of left leg showed high activity at all of the toe-out angles. In average iEMG of flexion phase, extension phase and in peak iEMG, all of the muscles activity of right leg showed high in $10^{\circ}$ and low in $0^{\circ}$, $30^{\circ}$. Conclusion: It is judged that setting the toe-out angle $10^{\circ}$ in squat help to efficiently use muscles and ensure stability.

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