中小学生所需要的主要身体素质为速度、力量、弹跳、柔韧、灵敏协调等。但在这些素质中发展速度素质的难度最大，并且速度素质对各个运动项目成绩的影响也比较大。因此，俗话说“速度是各项运动的灵魂”不无道理。所以，我们的身体训练应在全面发展的基础上，重点发展速度素质 Primary and secondary school students need the main physical quality of speed, strength, bouncing, flexible, sensitive coordination. However, in these qualities to develop speed and quality of the most difficult, and the speed of quality on the performance of the various sports are relatively large. Therefore, it is not unreasonable to say that “speed is the soul of all sports”. Therefore, our physical training should focus on the development of speed and quality on the basis of all-round development