摘要
运用信息技术和理论分析的方法对琼斯的“屈蹬式”短跑技术进行了生理学分析,对短跑的部分经典观点提出了质疑.研究指出:膝关节保持较小角度(150o—155o)就保证了屈膝肌较大的拉力角和拉力矩,在此角度肌肉能产生最大张力,从而能获得较大的位移速度和步频.
In this article the author conducted a biological analysis to 'Curve-treading style' theory by Jones in a proach of informational and theoretical analysis. By questioning some classical theories on race, the author points out that by keeping the knee joint in a smaller angle (150o-155o), the muscles in knee will get a greater pulling angle and distance to produce the greatest extension power. Hence a greater speed and pace-frequency is produced .
出处
《河西学院学报》
2004年第5期96-97,共2页
Journal of Hexi University
关键词
生理学
短跑
初长度
最大张力
Biology
short-distance Race
Initial length
the great extension Power
