在打球前做准备活动很有必要,通常的准备活动多是伸展运动,其中有静态伸展和动态伸展两种形式。动态伸展就是一些小幅度而快速的运动,比如模仿一些打球中常做的动作,包括跨步、并步、起跳、弯腰、正反手快速挥拍等。要切记的是,做动态伸展运动需注意小幅度和快速这两个原则,避免把肌肉拉伸到极致。 Preparatory activities in the play before the ball is necessary, the usual preparation activities are mostly stretching exercises, including static stretching and dynamic stretching in two forms. Dynamic stretching is some small and rapid movement, such as imitating some of the often done in the action, including stride, and step, take off, bend, front and back swing and so on. It should be remembered that, to do dynamic stretching exercises need to pay attention to the principle of small and fast, to avoid stretching the muscles to the extreme.