Exercise and exercise need energy. If energy comes from intracellular aerobic metabolism, it is aerobic exercise. During aerobic exercise, glucose metabolism produces water and carbon dioxide, which can be excreted by breathing; During anaerobic exercise, glucose hydrolysis produces a large number of intermediate metabolites such as lactic acid, which cannot be excreted by breathing.
The accumulation of lactic acid, too much lactic acid stimulates muscles to increase osmotic pressure, so that muscle tissue absorbs more water, leading to local swelling, which will make muscles feel sore. Lactic acid accumulation usually occurs in people with less exercise, or in muscle parts lacking exercise, and suddenly reaches a certain intensity.
Extended data:
The benefits of fitness
1, which is beneficial to the access of gas.
When crawling, qi can reach all parts of the body, especially the limbs, so crawling has certain curative effect on some diseases such as lumbar vertebrae, lumbar muscle strain and various neck, shoulder and spine diseases.
2. Conducive to smooth blood flow.
When the human body is upright, to promote the circulation of qi and blood, it is necessary to overcome the influence of blood gravity, and the heart burden will be heavy; Moreover, when people exercise upright, the lower limbs are the main active parts, and the qi and blood will drop more, and the qi and blood of the heart and its upper organs will decrease. When crawling, the position of the heart and its upper part will be lowered, which is beneficial to the circulation of qi and blood throughout the body and has positive significance for the prevention and treatment of heart disease.
This is good for the brain.
When people crawl, their heads often droop and their blood volume increases accordingly, so it is very beneficial to brain health.
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