우수 소프트볼 선수 타격동작의 운동학적 특성 분석 = Kinematic analysis of softball batting in elite softball player

다국어 초록 (Multilingual Abstract)

The purpose of this study was to investigate an kinematical characteristics in national softball player. For this purpose, batting time, bat speed, bat angle, trunk angle, knee angle, wrist angle were investigated. Two high speed video cameras were used to obtain the 3-D kinematics of the player and bat. Also, necessary kinematical factors were calculated by using these 3-D coordinates. Based on this experimental design, The results of this study were followed. First, whole swing time and phase time have no difference. Swing rhythm (of phase1 to phase2) appear in a similarity. Second, bat speed in superior performance faster than speed in bad performance. Third, bat angle in superior performance was level with the land. Forth, bat angle in superior performance nearer with perpendicular angle in bad performance. Fifth, knee angle in superior performance bigger than angle in bad performance. Last, wrist angle in superior performance bigger than angle in bad performance.

참고문헌 (Reference)

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