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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
대한무도학회 대한무도학회지 대한무도학회지 제11권 제1호
발행연도
2009.1
수록면
198 - 212 (15page)

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초록· 키워드

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This study investigated the affect of stance length and its relationship to the effectiveness of the forward stance. 5 Poomsae players participated in this study. The kinematical data of the preparation motion of a downward block in forward stance, then stepping into a mid section punch was recorded by 6 cameras at 60 field/sec. While the groundforce reactions were measured by 2 force platforms. Data was collected by Kwon3D XP Motion Analysis Program and here are the following conclusions. There are three forward stance types of width between right foot and left foot. Type 1 : Foot length, Type 2 : Hip width, Type 3 : Shoulder width 1) For motion practice duration, it was found that Type B took shorter duration at trunk punch phase than other two Apkubi types. That is, it is found that Type B is most appropriate Apkubi type for trunk opposite punch. 2) For COM displacement, it was found that Type A showed longest movement in vertical direction(z axis), and Type C showed longest movement in medial-lateral direction(x axis), but showed shortest movement in anterior-posterior direction(y axis). 3) For angle between right and left foot, it was found that Type A, B and C recorded 8.1°/7.6°, 17.4°/17.6° and 25.6°/27.5°respectively. Here, it is estimated that Type A is more unstable than other two types because the COM of Type A is located on lateral side of BOS. 4) All of 3 Apkubi types showed similar ankle/knee/hip joint angles. For toe out angle, Type B showed similar aspects to Type C, while Type A showed external rotation of foot almost twice wider than other two Apkubi types, which indicates that Type A is more vulnerable to opponent's attack than other two types. 5) For the maximum velocity of left hand arae makki and right hand punch, Type B recorded highest velocity of all. Thus, it is found that Type B is most appropriate Apkubi type for arae makki and punch. 6) Despite no significant difference in vertical and resultant ground reaction force among 3 Apkubi types, there were significant differences in anterior-posterior and medial-lateral ground reaction force among them, i.e. it is found that Type B shows lighter forward step and smoother COM displacement than Type A and C.

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