The Analysis on the Changes in Beginners Batting Movements through Undergraduate Baseball Lectures

摘要: The purpose of this study was to find out the changes in beginners` batting movements after taking undergraduate baseball lectures, by comparing and analyzing speed bat, angle body its segments, angular velocity so on. For purpose, author picked up five undergraduates who had not taken conducted three-dimension computerized tomography twice on them, that is, before classes, with eight infrared cameras two force platforms. conclusions are, first, time required for swing shortened classes. Second, maximum bat-end increased. Third, at impact, while rotation angles pelvis tip left foot were increased, elbow more flexion Fourth, size ground reaction increased point where became maximized. As we can infer from these conclusions, hitting classes tended only arms, without waist weight shift lower body, but their proved be corrected into using body. future studies, expects a research close real environment pitching machine.