Extended data:
There are two main forms of recovery, namely negative recovery and positive recovery.
Negative recovery refers to general rest and sleep. During sleep, the inhibition process of the central nervous system, especially the cerebral cortex, is dominant, and the synthesis process of energy substances is also dominant. Some metabolites in the body are either utilized or eliminated, fatigue is eliminated, and muscle recovery and growth occur during sleep. Therefore, it is very necessary to have enough sleep time after fitness training, especially for teenagers in the developmental stage.
Enthusiasm recovery refers to the recovery by changing the content of activities, such as finishing activities after exercise, physical and mechanical relaxation and massage, appropriate vitamin supplementation, psychological relaxation and so on.
The reason why active rest can play a recovery role is that when switching to new activities, the excitement of the cerebral cortex center can induce the surrounding inhibition process to strengthen, deepen the exhausted central inhibition, accelerate the synthesis of energy substances and promote the elimination of lactic acid. The finishing activities after fitness training will help the human body to change from vigorous activity to normal quiet state, make venous blood return to the heart as soon as possible, speed up the whole body recovery, and prevent adverse phenomena such as acute cerebral anemia and blood pressure reduction. Tidying activities include deep breathing and light activities, such as jogging, limb relaxation and swinging.
References:
Muscle-Baidu Encyclopedia