800米跑是当前许多体育院校招生的一项身体耐力素质测试内容,它属于极限下强度项目。运动过程中,主要以无氧代谢供能为主,运动特点是要有长时间保持高速跑的运动持续能力,既需要速度能力又需要速度耐力。而多数体育考生在800米跑的过程中会出现动作技术变形,跑速下降,冲刺无力或根本不具备冲刺能力的现象。导致800米跑成绩差的主要原因是:学生心肺系统功能差,不具备承受后半程高浓度代谢产物血乳酸的能力和调节酸碱值的 800 meters run is currently a lot of sports colleges and universities enrollment of a physical endurance quality test content, it belongs to the limit under the intensity of the project. During exercise, the main energy-based anaerobic metabolism, exercise is characterized by a long time to maintain high-speed running ability to sustain the movement, both speed and speed need to endurance. Most sports candidates in the process of running at 800 meters will appear technical deformation movements, running speed decline, sprint weakness or do not have the sprint ability phenomenon. The main reason for the poor runnability of 800 meters is that students have poor cardiopulmonary function and do not have the ability to tolerate high concentrations of hemoglobin,