短跑项目100米在成绩起伏不定,甚至没有提高的情况下,通过分析,是由于步长而引起,通过对力量素质和跑格子等训练方法,能有效提高步长,步频等从而提高比赛成绩。一、前言步长和步频是决定短跑速度的主要因素。长期以来,国内外的许多学者对短跑运动员的步长和步频作了大量的研究。根据波兰教练员霍失曼提出身高和腿长都是受先天因素的影响,所以要提高运动成绩应先提高步长的训练。对提高跑速应在保持步频的基础上进一步增大步长,因为步频受先 Sprint 100 meters in the event of ups and downs in performance, or even without improvement, through the analysis, is due to the step-by-step, through the quality of power and the grid and other training methods, can effectively improve the step length, pitch and so improve the game results . First, the foreword Step and pace are the main factors that determine the speed of the sprint. For a long time, many scholars both at home and abroad have made a great deal of research on the steps and steps of sprinters. According to the Polish coach Huo Shuren put forward height and leg length are affected by innate factors, so to improve the performance of the athletic should improve step-by-step training. To improve the running speed should be based on the pace to maintain further increase the step, because the pace by the first