The analysis is as follows:
Capillaries dilate during exercise. If you take a bath immediately, the pores will shrink immediately when stimulated, so that toxic substances cannot be excreted, which is not good for the skin. Taking a bath immediately will lead to sudden contraction of capillaries, which is easy to catch a cold. In severe cases, the blood accumulated in muscles will further increase, and the blood in internal organs will be over-extracted. Some important organs, such as the brain and heart, may become insufficient blood supply, making people feel dizzy, weak and even collapse and shock.
Generally speaking, when the body temperature basically returns to normal, the sweat basically evaporates and the blood returns to normal flow, you can take a bath. Generally, it is more appropriate to take a rest for about 20-40 minutes after running and then take a shower.
Extended data:
Running is defined as land animals moving with their feet. It is defined as a step in sports, and both feet will not land at the same time. It can also be aerobic exercise or anaerobic exercise.
Running mainly depends on the body itself and external environmental conditions. In the morning, the body temperature is low, the blood is sticky, and the body function is in a low state. The concentration of carbon dioxide in the air is high, and the morning fog has not dispersed, which is not conducive to running.
Among the four elements of running, many runners have laid a good foundation in training endurance. Some runners coordinate their speed and endurance well. However, few runners take rest seriously. There is enough evidence to prove that rest is the most important factor among the four basic elements. Running has brought us many benefits, and these benefits are all paid by us. In running, this price is the repeated process that muscle tissue in the body is constantly destroyed and reorganized. Endless running will eventually lead to muscle injury. In running, we think that injury and overuse mean the same thing. And muscle tissue is stronger after rest than before.
In order to keep us healthy and run better, we need to follow some basic principles when running.
1, run at least once a day, and your muscles have enough time to rest a day. If you run four days a week, your muscles will rest for too long on the days when you don't run, but it won't have any effect.
2. Use some low-intensity training every week instead of running 1 day or 2 days. For example, aerobic and sweating training on power bicycles.
3. Add some walking activities to your training.
4. There should be fewer games.
When you are ready to maintain your physical fitness without competition tasks, you should try to reduce the amount of exercise, keep your grades and insist on reducing the amount of training.
6. Carry out deep tissue massage in a planned way.
7. Apply the same theory to your daily life. We should learn the art of rest and relaxation in our study and work, which is worth pursuing. By learning to rest and relax creatively, we can recover our body and mind and become stronger.
When people are running, the oxygen demand of human body increases with the increase of running speed. In order to change this situation, it is necessary to speed up the breathing frequency and increase the breathing depth. However, there is a certain limit to the acceleration of respiratory rate, and the most effective range is generally 35 ~ 40 times per minute.
If the maximum number of breaths per minute is 60, and the average breath is once per second, it will inevitably make the breathing shallow, reduce the ventilation, affect the inhalation of oxygen and the discharge of carbon dioxide, increase the concentration of carbon dioxide in the blood and decrease the concentration of oxygen.
Baidu Encyclopedia: Running