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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국사회체육학회 한국사회체육학회지 한국사회체육학회지 제11권
발행연도
1999.5
수록면
339 - 349 (11page)

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초록· 키워드

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The purpose of this study was to examine the biomechanical characteristics on Taekwondo Apchagi motion, and to grope for the better Apchagi technique. The subjects were nationally ranked three taekwondo players. 2 high speed cameras were used for the data collection. The Direct Linear Transformation(DLT) technique was employed to obtain 3-D position coordinates of 24 landmards(Abdel-Aziz & Kararah, 1971) and a cubic spline function was used for smoothing and differentiation. In also calculates the location of center of mass using Plagenhoef`s data. In this study, Apchagi motion was divided into 4 events(RD, TO, MKA and IMP) and three phases. From those, displacement of COG, Velocity of thigh, leg, foot in kicking foot and angle and angular velocity of hip, knee and ankle joint in kicking foot were calculated, and the following conclusions were drawn: 1. Displacement showed longer in c.o.g from take-off of kicking foot to maximum flexion of knee joint. 2. Velocity showed faster in thigh and foot from take-off kicking foot to maximum flexion of knee joint. 3. Angle showed larger in hip, knee and ankle joint from maximum knee flexion of kicking foot to impact. 4. Angular velocity showed faster in ankle joint from start to take-off kicking foot, in knee joint from maximum flexion of knee joint to impact and in hip joint from take-off kicking foot to maximum knee flexion. 5. Vertical ground reaction force showed higher at the moment of maximum knee flexion.

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