田径项目4×100m接力下压式和上挑式的特征比较

The comparison of the characteristic of Down-sweep pass and Up-sweep pass in the 4×100m relay

目的:通过对"上挑式"和"下压式"传接棒方式的对比研究,找出两种传接棒方式的技术特征。通过文献资料法、影像测量法、数量统计方法,对下压式和上挑式技术的运动学特征进行了实验研究,结果表明:下压式和上挑式技术动作的难易程度没有显著性差异,对自然跑速的影响和传接棒的效率上也没有显著性差异,主要差异在于接棒运动员通过接力区的时间和传接棒结束后的加速阶段的速度上。

Objective：through a contrastive study of up-sweep pass and down-sweep pass, the paper tries to find out the characteristics of the two methods, Methods： the paper studies 20 sprinters from the Physical Education Department, Northeast Normal University, It adopts the methods of literaturs, statistics and imaging metod. It experiments with the characteristics of up-sweep pass and down-sweep pass from the perspective of sports biomechanics. Results;there is no absolute difference between up-sweep pass and down-sweep pass. There is no evident influence on the speed and efficiency to pass the baton. The obvious difference lies in baton exchange time and the speed acceleration after the sprinters have exchanged the baton.