在体育教学或训练中我们经常会发现:有些学生跑起来很吃力,全身肌肉始终处于紧张状态,但成绩反而不好。为什么会出现这种现象呢?主要是因为短跑的自然放松能力是影响短跑成绩的一项重要因素。众所周知,短跑是一项高强度的运动,学生在进行练习与比赛时无论从生理与心理方面都承受着较大的刺激和负荷,因而容易引起紧张,为此,应从生理与心理两方面来提高跑的放松能 In physical education or training, we often find that some students are struggling to get up and that their whole body muscles are always in a state of tension, but their performance is not good. Why does this happen? The main reason is that the natural relaxation ability of the sprint is an important factor affecting the results of the sprint. As we all know, sprinting is a high-intensity exercise. Students exercise physical and psychological aspects in both physical and psychological training. They are prone to stress. Therefore, they should be improved from both physical and psychological aspects. Running to relax