田径运动属于体能性项目，受身体素质的制约性较大，其技术是以能发挥人体最大运动能力为前提，从而产生最大作用并获得最佳的运动效果。其用力特点之一是：以最短的时间释放出最大的肌肉力量，或者是在尽可能短的时间内完成所要完成的动作，即爆发性用力，以求通过合理的... Track and field is a physical fitness program, subject to physical constraints more, the technology is based on the ability to play the maximum exercise capacity of the human body as the prerequisite to produce the greatest effect and get the best sports results. One of the characteristics of its force is: the maximum release of muscle strength in the shortest possible time, or in the shortest possible time to complete the action to be completed, that explosive force, in order to pass a reasonable ...