“强制性拉伸肌肉”实际上属于一种离心力量练习。即:肌肉在练习中虽积极地收缩,却仍被强制性拉伸作用力拉长了的工作形式。与肌肉的其它几种收缩形式相比,它的最大特点是能使肌肉产生较大的张力。早在1929年就有研究者(贝德)用青蛙实验证实了强制性拉伸肌肉后的肌力超过最大静力性肌力的1.5—2倍。还有研究者认为,离心收缩所产生的张力比最大向心收缩力大40％左右。可见,离心收缩是进行力量练习的最佳刺激。但在运动实践 “Mandatory stretching muscles” is actually a kind of centrifugal force exercise. That is, although the muscles actively shrink during the exercise, they are still forced to stretch their working forms. Compared with several other types of muscle contraction, the most important feature is that it can produce greater muscle tension. As early as 1929, some researchers (Bader) used frogs to experimentally confirmed that the muscular strength after forced muscle stretching exceeds 1.5-2 times the maximum static strength. Some researchers believe that the contraction of the tension generated by the maximum centripetal contractility greater than 40%. Visible, centrifugal contraction is the best stimulation for strength exercises. But in sports practice