一、前言随着体育运动水平的不断提高,在时间、高度上的争夺越趋激烈,因此要求运动员在最短时间内发挥最大力量,已成为提高体育运动水平不可缺少的重要因素。在最短时间内发挥最大力量的能力,爆发性力量(简称爆发力)。它虽属于力量素质的范畴,但它更具有自己的特殊性——充分发挥肌肉的最大功率。影响单块肌肉力量的因素主要有肌肉生理横断面的大小和神经调节的改善。肌肉横断面增大主要由于肌纤维增粗造成的,包括肌球蛋白质含量增加,肌毛细血管网增多,肌结缔组织增厚,磷酸肌酸和肌糖元增加等,并往往伴随肌脂肪减少。它是肌肉收缩的物质基础,当然也是 I. Introduction As the level of sports continues to increase, the competition for time and height becomes more and more intense. Therefore, requiring athletes to exert their utmost strength in the shortest time has become an indispensable factor in raising the level of sports. In the shortest possible time to maximize the ability of the explosive force (referred to as explosive force). Although it belongs to the category of strength quality, but it has its own particularity - give full play to the maximum muscle power. Factors that affect the power of a single muscle are mainly the size of the muscle physiologic cross-section and the improvement of neuromodulation. Muscle cross-section increases mainly due to muscle fiber thickening, including increased myosin content, increased muscle capillary network, thickening of connective tissue, increased creatine phosphate and muscle glycogen, and often accompanied by reduced muscle fat. It is the material basis for muscle contraction, of course