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中长跑属于功能性项目,主要发展耐久力,肌肉连续长时间工作是这个项目的特点。由于中长跑比赛时距离长、机体负担重,对机能潜力、内脏功能要求较高,所以要想提高运动水平,取得优异成绩,必须明确肌肉连续工作时的能量供应与运动训练的关系,并进行多年科学的系统训练才能达到。本文就这方面的有关问题谈点粗浅看法,欢迎批评指正。一、肌肉连续工作时的能源系统从运动生理生化过程看,肌肉连续工作时保证ATP合成分解释放能量有三个能源统系:1.ATP—CP系统(也称磷酸原系统),即高能磷化物分解释放供能,不需氧,不产生乳酸;2.乳酸能系统,即糖元
Middle and long distance running is a functional project, the main development of endurance, muscle long hours of continuous work is the characteristics of this project. Due to the long distance during the long-distance race, body burden, on the potential of the function, the higher the requirements of visceral function, so to improve the level of exercise, and achieved outstanding results, we must clear muscle energy supply and continuous training when the relationship between exercise and Years of scientific system training can be achieved. This article talks about the relevant issues in this area a superficial view, welcome criticism and correction. First, the muscle energy system for continuous work From the physiological and biochemical process of exercise, muscle work continuously to ensure that ATP synthesis and decomposition of energy release has three energy systems: 1.ATP-CP system (also known as phosphate system), that is, high-energy phosphide Decomposition and release of energy, do not need oxygen, does not produce lactic acid; 2.Lactic acid system, namely glycogen