대학 야구 강의를 통한 초보자의 타격 동작 변화 분석
분야
예체능 > 체육학
저자
천영진 ( Young Jin Chun )
발행기관
한국운동역학회
간행물정보
한국운동역학회지 2012년, 제22권 제3호, 277~284페이지(총8페이지)
파일형식
0k401436.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    The purpose of this study is to find out the changes in beginners` batting movements after taking undergraduate baseball lectures, by comparing and analyzing the speed of bat, the angle of body and its segments, the angular velocity and so on. For this purpose, the author picked up five undergraduates who had not taken baseball lectures, and conducted three-dimension computerized tomography twice on them, that is, before and after taking baseball classes, with eight infrared cameras and two force platforms. The conclusions are, first, the time required for swing was shortened after taking the classes. Second, the maximum velocity of the bat-end was increased. Third, at the time of impact, while the rotation angles of the pelvis and the tip of left foot were increased, the left elbow had more flexion after the classes. Fourth, the size of ground reaction force was increased at the point of swing where the ground reaction force of left foot became maximized. As we can infer from these conclusions, beginners` hitting movements before taking baseball classes tended to swing only with the arms, without waist rotation and weight shift of the lower body, but after the classes, their movements were proved to be corrected into the swing using the lower body. For the future studies, the author expects a research in a close to real environment by using pitching machine.
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