(1) makes the child grow taller obviously. Physical exercise can improve the function of children's internal organs and make them strong. Children grow up because of the growth and development of human bones, especially long bones. Physical exercise can improve the blood circulation system and make osteoblasts get more and more nutrition. At the same time, physical exercise has the function of mechanical equipment for bones. Therefore, it can promote the growth and development of human bones, so that the child's figure will also be improved.
(2) Let the child's muscles plump up slowly. Physical exercise can exercise children's limbs, enhance muscle energy and make muscles plump slowly. If the abdominal muscles, waist muscles, back muscles, limb endurance and leg muscle energy are purposefully improved in practice, and some conditional stimulation exercises are carried out, the child's operation can be improved more and more dexterously.
(3) Improve children's heart function Physical exercise promotes heart function, accelerates blood circulation system, improves basal metabolism, makes the heart more developed and improves folding power. During the whole exercise process, children's muscle theme activities must consume a lot of O2 and emit a lot of carbon dioxide. During the whole process, the respiratory system must be doubled. In the long run, the activity area of chest width theme is enlarged, the lung function is improved, and the role of respiratory system is improved, which has excellent effect on avoiding common diseases of respiratory system.
(4) Physical exercise to improve gastrointestinal function can improve children's gastrointestinal peristalsis, promote digestion, increase appetite, promote digestion and absorption of nutrients, improve gastrointestinal function, and make children grow stronger. Children with poor appetite and partial eclipse participate in physical exercise, which is conducive to improving the bad diet structure.
(5) Promoting the growth and development of the nervous system Physical exercise can promote the growth and development of the nervous system. During exercise, under the unified manipulation and control of the nervous system, the coordinated fitness exercise of all parts of the human body can be realized. Therefore, while doing physical exercise, the nervous system itself has also been exercised and improved.
(VI) Improving children's overall physical quality Physical exercise can prevent infectious diseases. Children should take part in outdoor activities and bathe with sunshine, gas and water, so that they can gradually withstand the stimulation of external environmental damage. The mucosa of skin and respiratory system is constantly tortured by exercise, which improves their tolerance, and the stimulation of cold and heat by cerebral cortex also produces conditioned stimulation. When natural factors change, the child's body will negotiate independently and keep stable with the external natural environment, so that the child is not easy to get sick.
(7) Make training more efficient. Biologists' research shows that fitness exercise can produce endorphins, serotonin and choline, which can make children have a good mood and put money into learning activities, which will have a full effect on improving learning effect. In addition, the academic performance of college students with good physical fitness is worth mentioning, because students with good physical fitness pay more attention and study and train more effectively.