A conditioning coach recommended exercises for the enhancement of leg extensor strength for six groups of athletes - elite, intermediate and beginning volleyball players and ski jumpers.
一位体能教练要为6组运动员推荐提高伸膝力量的练习，这6组运动员分别是高级、中级、初级排球运动员和高级、中级、初级跳台滑雪运动员。
A conditioning coach recommended exercises for the enhancement of leg extensor strength for six groups of athletes - elite, intermediate and beginning volleyball players and ski jumpers.
一位体能教练要为6组运动员推荐提高伸膝力量的练习，这6组运动员分别是高级、中级、初级排球运动员和高级、中级、初级跳台滑雪运动员。
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