棒球击球下肢动作的力学分析

Lower Body Mechanics During the Baseball Swing

在棒球击球中,有两种不同的技术,一种强调身体的转动,另一种强调转动与线运动的结合。本文利用三维高速录象分析系统与测力台采集和分析两组不同技术类型的击球手的有关数据。结果表明,击球手向前的线运动与髋部转动的结合为产生较高的击球速度及快速起动跑垒提供了良好的基础。该研究将有助于棒球击球的改进与完善。

There are twe types of techaniques for baseball swing. One emphasizes the rotational movement of the body. The other emphasizes the combination of rotational and linear movement. In this study, 3 -D motion data and ground reaction forces were collected and analysed using a high speed video analysis system and two force plates during the baseball swing for two groups of hitters. The results showed that the forward linear movement of the hitter combined with the rotational movement of the hip provide a foundation for generating high bat speed and quick start. It is to be used for benifit of improving the techaniques of baseball swing.