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短跑依靠无氧代谢过程获得能量,而供应的能量物质主要是ATP、CP和糖原。这3种物质在人体内特别少,因此,百米跑后程的减速成为必然。短跑的难点就在于将起跑后获得的最高速度尽可能保持较长的时间。运动员协调性和放松能力的好坏起着一定的作用。因此,短跑中肌肉的放松是保持速度的关键。
Dash relies on anaerobic metabolism to gain energy, while the energy supplies are mainly ATP, CP and glycogen. These three substances in the human body is particularly small, therefore, 100 meters after the slowdown has become inevitable. The dilemma lies in the sprint will be obtained after the maximum speed as long as possible to maintain a long time. Athletes coordination and relaxation ability plays a good role. Therefore, muscle relaxation in sprint is the key to maintain speed.