相反，有效的长距离跑步只需要稍微的抬腿、很快的步频和短步幅。
Instead, efficient endurance running requires just a slight knee lift, a quick leg turnover, and a short stride.
本文采用高速摄影和影片解析的方法，对我国优秀男子短跑运动员途中跑步频、步幅诸因素进行分析。
This study analyzed on stride and stride frequency at intermediate running about excellent sprinters in China by the way of the high rapid photography and analysis the film.
对于大多数跑步者，在不同的配速下，他们的步频保持不变，速度的改变时通过改变他们的步幅完成的。
For most runners, stride turnover stays the same at various paces and speed changes are accomplished by altering their stride length.
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