短跑是人体在大量缺氧的状况下持续高速跑进的极限强度运动,属于典型的无氧代谢的运动项目。它显著的技术特点是大幅度、高频率、放松。当长期形成的步频、步幅及技术节奏处于相对稳定的状态时,运动成绩就会出现滞长现象,尤其是肌肉放松能力较差的运动员。而此时提高跑进过程中的肌肉放松能力就成为加快跑速的关键因素。 Sprint is a kind of extreme intensity exercise that the human body runs at high speed under a large amount of hypoxia. It is a typical anaerobic exercise. Its remarkable technical features are substantial, high frequency, relaxing. When the long-term formation of the pace, pace and technical rhythm in a relatively stable state, the performance will be stagflation, especially in poor muscle relaxation athletes. And this time to improve the running into the muscle relaxation capacity has become the key factor in speeding up.