The exercise ability of human body is not only greatly limited by genetic factors, but also influenced by environmental factors. Among many environmental factors, sports training is a very important factor to improve human sports ability. In sports training, only by understanding and mastering the characteristics of energy supply and the changing law of body function, choosing reasonable training methods and exercise load, and making reasonable combination and deployment, can the training meet special requirements and improve sports ability.

Different sports have different rules and characteristics of energy metabolism. How to choose a reasonable training method according to the law and characteristics of energy supply during exercise and improve its metabolic ability is the key to scientific training. Different special qualities have different training methods and requirements.

First, the training of phosphorus metabolism ability.

The output power of phosphoprotein (ATP, CP) is the largest, so when using phosphoprotein as power, the speed and strength are the largest.

(A) the theoretical basis of biochemistry

The energy supply of the original phosphoric acid system is characterized by short maintenance action time, generally 5-8 seconds, but the output power is the largest among all energy supply systems. Therefore, the training of phosphorus source system can adopt special or special repeated exercises, and the maximum strength is 5- 10 seconds. In the high-intensity exercise of 5- 10 seconds, almost all the energy is provided by phosphagen, and only a small amount of lactic acid is produced during the recovery period.

The most important thing in the training of phosphorus energy supply system is to master the rest interval. If the interval time is too short, phosphagen will recover less, and part of the energy will be provided by glycolysis during repeated exercise, which will obviously increase the blood lactic acid level. At this time, it is not suitable to develop phosphorus source for energy supply. On the other hand, if the rest interval is too long, the fibrinogen can be completely recovered, but according to the overload principle of exercise training, the training density is not enough to stimulate the fibrinogen, and it is not conducive to improving the energy supply capacity of the phosphate system. According to the research of most scholars, improving the intermittent time of repetitive training or intermittent training in phosphoric acid system should be decided according to the half-life reaction of CP recovery. Because the half-life reaction of CP recovery is about 20-30 seconds, the most suitable rest interval should be about 30 seconds. However, for athletes with low training level or in the early stage of high-intensity training, the rest interval can be appropriately extended, such as 60-90 seconds, and it can be gradually shortened with the improvement of training level.