摘要
运用爱捷运动录像三维测量分析系统对我国优秀女子铁饼运动员的肩和髋的动作进行了三维运动学分析。结果表明 :左脚离地时的身体姿势对腾空、过渡阶段和最后用力阶段有着重要的影响 ;在最后用力阶段 ,拉引角数值的增量制约着铁饼运行的距离 ;我国运动员与世界优秀运动员的主要差距在过渡阶段。存在的问题 :运动员没能有效地做出右脚的转扣着地及着地后不停顿的旋转动作 ;左髋带动左大腿促使左脚尽快摆压动作过慢。
In this paper, the author employs the three dimensional Cine matogram metry and EIMG 64 PN 1 sports video analytical system to analyze the motion character of shoulders and hips of elite female discus throwers in our country. The result show that the body posture in the time of left foot's leaving the ground has great influence on the rising、transitional period and the delivery. During the delivery, the pulling angle value restricts the distance of discus movement. The main gap of our national athletes with foreign one is the transitional period. The existing problem is: 1) Our athletes failed to land with right foot in the way of revolving and keeping revolving after touchdown. 2) The movement of left hip bringing along the quick swaying and pressing of left leg is too slow.
出处
《中国体育科技》
北大核心
2000年第5期26-28,共3页
China Sport Science and Technology
