运用生物力学、生理学、生物化学的原理阐述了力量和速度之间的相互关系，并借鉴国外的实践经验，结合我国的实际探讨了力量素质在中跑运动中的重要作用，提出了为改变我国男子中跑水平落后的面貌，必须要重视力量素质训练的观点。 This paper expounds the relationship between strength and speed by means of the principles of biomechanics, physiology and biochemistry, and draws lessons from the practical experience of other countries to explore the important role of the strength of quality in middle distance running with the reality of our country. Men running behind the face of the level, we must pay attention to the strength of the quality of training point of view.