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논문 기본 정보

자료유형
학술저널
저자정보
최치선 (서울대학교) 신인식 (서울대학교) 서정석 (서울대학교)
저널정보
한국운동역학회 한국운동역학회지 한국운동역학회지 제14권 제2호
발행연도
2004.1
수록면
57 - 68 (12page)

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초록· 키워드

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This study was to evaluate the consistency of the vertical force($F_z$) of the force platform and the impact force. Two experiments were performed. First, the force platform was vertically placed to hang to the wall. While the rotating iron body hit the force platform, $F_z$ was measured. Then $F_z$ was compared with the impact force of the rotating iron body that was precalculated by using the inertia moments and the rotating force. Second, six Taekwondo masters punched the force platform to show what a certain pattern the impart force has. They were asked to punch the target depending on target distances. The target distances were differed from the relative arm segment of subjects as 90%, 80%, 70%, 60%, and 50% (100% target distance equals the aim length of each subject). Pearson's correlations were used between $F_z$ and the impact force. Also the linear regression was also performed to show the linearity. At the first experiment, $F_z$ and the impact force had much correlations and showed linear characteristics. Therefore, $F_z$ could be regarded as the impact force. At the second experiment, the strongest impact force was measured at the target distance of 80% and the time taken to the maximum impact force was within 0.02 seconds. The result of this study recommends that it can help the comparative study between the impact forces and other hitting sports.

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