摆臂是影响短跑成绩的重要因素,正确有力的摆臂能有效增大步幅,提高步频,增强后蹬力,从而提高短跑成绩。在短跑的教学和训练中,摆臂应该作为一项专门的训练内容。 The swing arm is an important factor that affects the performance of the sprint. The correct and effective swing arm can effectively increase the stride, increase the step frequency, and enhance the pedaling force so as to improve the sprint performance. In sprint teaching and training, swing arm should be used as a specialized training content.