我国男子100m跑成绩滞后原因初探——不同后蹬角度的途中跑技术特征与效果分析

The Causes of the Dissatisfactory Results of Chinese Men's 100- Metere Dash——An Analysis on the Technical Features and Effects of Pressing down at Different Angles with the Feet at the Phase between Accderation and spurt

后蹬动作作为途中跑的核心技术,它决定着跑的技术特征和效果,是影响短跑成绩的主要技术因素。运用比较研究方法,从途中跑的后蹬角度入手,对中、外优秀短跑运动员途中跑的技术指标和特征进行了分析;阐明了国外优秀短跑运动员"以伸髋为主导"的后蹬技术特点和我国短跑运动员"以伸膝为主导"的后蹬技术特点;提出了改进我国运动员100m途中跑技术,由"以伸膝为主导"的后蹬技术转变为"以伸髋为主导"后蹬技术的观点。

As the core techniques of spring at the phase between acceleration and spurt, the movements of pressing down with the feet decide the technical features and effects of running, and are the principal factors which influence the race results. This paper, by comparison and by the angles of pressing-down, analyses the technical data and features of Chinese and foreign leading runners, and explores the characteristics of foreign runners' pressing down mainly with the coax extended and the characteristics of Chinese runners' pressing down mainly with the knee extended.This paper finally holds that a shift of pressing-down techniques from knee-extending to coax-extending should be made so as to improve Chinese Men's 100-metre dash.