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在跨栏跑起跨腿的过栏技术教学中,我们常要求学生“在摆动腿的脚掌移过栏板的同时,起跨腿屈膝外展,小腿收紧抬平,脚尖勾起,足跟靠臀,以膝领先经腋下加速向前提拉”。从优秀运动员的技术动作中,我们也可以观察到,在运动员的起跨腿过栏阶段,都有适度地勾脚尖动作。但是,作为初学跨栏者,往往容易忽视这一动作细节,使踝关节处于松弛状态。那么在起跨腿过栏时,要求起跨腿“勾脚尖”动作的具体原因是什么呢?它对起跨过栏有何实际意义呢?下面本文将结合运动解剖学和运动生物力学的知识来探讨这个问题。
In hurdling across the hurdles column technology teaching, we often require students “swing leg swinging over the spine at the same time, leg flexion and extension, calf tighten flat, toe aroused, heel Buttocks, knees to the knee through the armpit to speed forward lift ”. From the technical performance of elite athletes, we can also observe that there is a modest hook-toe movement during the athlete’s cross-legging. However, as a beginner hurdle, it is often easy to overlook the details of this action, leaving the ankle in a relaxed state. So what is the specific reason why you need to straddle the leg when you cross the bar and what does it mean for you to straddle the bar? In this article, we will combine sports anatomy and exercise biomechanics The knowledge to explore this issue.