hamstring

Meanwhile, work on strengthening and stretching your hip, hamstring and lower-back muscles..与此同时还要拉伸和增强你臀部、腿筋和腰背部的肌肉。

Far more telling was the correlation between the various runners’ tight or loose hamstring muscles and their running economy, a measure of how much oxygen they used while striding..进一步讲，不同跑步者腿筋肌的松紧和步伐频率是有联系的，这是一种对他们在跨步行进时耗氧量的评估。

For stretching, focus on the hamstring stretch, the hip &lower-back stretch, and the hamstring &back stretch..拉伸方面——特别要关注腿筋拉伸、髋关节和腰背部拉伸、腿筋和背部锻炼。