摘要
通过相关和因子分析,论述了100m全程速度结构各阶段速度增长的相关关系及其影响速度结构的主要速度因子和步频与步幅因子,并指出步幅对100 m全程速度的贡献比步频大。研究还发现,起跑疾跑过度加速是影响全程速度结构的主要因素,而这种过度加速的起因又与其步频过快有关。建议:在不影响起跑加速动作和速度的情况下,有控制地适当增加起跑后前10 m加速跑的步幅,以便改善和消除因起跑加速步频过快引起过度加速所造成的不利影响。
Adopting relative and factor analysis, the thesis elaborates the speed growth at each stage in the full course speed structure of 100 m dash, and stride length and stride frequency as the two main factors influencing the speed structure. Stride length contributes more to the overall speed of 100m dash than stride frequency. An over-accelerated start striding is the main factor affecting the full course speed structure. This start is related to the excessively high stride frequency. It is suggested that the stride length could be appropriately increased at the first 10m accelerated running after the start on the basis of not affecting the accelerated start movement and speed. This will reduce or eliminate the negative effects of over-accelerating caused by excessively high stride frequency in accelerated start running.
出处
《体育科学》
CSSCI
北大核心
2002年第3期66-69,共4页
China Sport Science
关键词
运动训练
短跑
步频
步幅
athletic training
sprint speed
stride frequency
stride length
speed structure
