What are the specific aspects of skipping? Everyone talks about it.

(1) Physical exercise can promote the absorption and utilization of sugar by tissues and cells in the body, and increase the storage of glycogen in the liver and muscles. Physical exercise can also improve the body's ability to regulate glucose metabolism. For example, under the influence of long-term physical exercise, the secretion of glucagon shows adaptation to exercise, that is, under the same intensity of exercise, the secretion of glucagon decreases, which is meaningful to delay the emptying of liver glycogen, thus delaying the arrival of failure and increasing the time of continuous exercise.

(2) Fat is an energy substance with high content in human body. When it is oxidized and decomposed in the body, it will release about twice as much energy as the same amount of sugar or protein. Long-term physical exercise can improve the body's ability to use fat and provide more energy sources for the body to engage in various activities.

2. Influence on sports system

Insisting on physical exercise will have a good influence on bones, muscles, joints and ligaments. Regular exercise can maintain the normal tension of muscles, stimulate bone tissue through muscle activity, promote the storage of calcium in bones, prevent osteoporosis, and keep joints and ligaments flexible. Exercise can enhance the accuracy and coordination of the movement system, maintain the flexibility of hands and feet, and enable people to easily and methodically complete various complex movements.

3. Influence on cardiovascular system

Proper exercise is the only way to keep your heart healthy. Regular exercise can slow down the heart rate during rest and exercise, greatly reduce the working time of the heart, increase the heart function, keep the coronary blood flow unobstructed, better supply the nutrients needed by the myocardium, and reduce the risk of heart disease.

(1) Regular physical exercise can increase the protein synthesis in myocardial cells, thicken myocardial fibers, increase myocardial contractility, and make the heart inject more blood into blood vessels at each contraction, thus increasing the cardiac stroke output. Long-term physical exercise can increase ventricular volume.

(2) Physical exercise can increase the elasticity of blood vessel wall, which is very beneficial to human health for a long time. With the increase of age, the elasticity of blood vessel wall gradually decreases, which can induce degenerative diseases such as hypertension. Physical exercise can increase the elasticity of blood vessel wall and prevent or alleviate the symptoms of degenerative hypertension.

(3) Physical exercise can promote the opening of a large number of capillaries, thus accelerating the exchange of blood and tissue fluid, accelerating the level of metabolism, and enhancing the supply of energy substances and the excretion ability of metabolic substances.

(4) Physical exercise can significantly reduce the content of blood lipids (cholesterol, B protein, triacylglycerol, etc.). ), change the quality of blood lipids, effectively prevent and treat coronary heart disease, hypertension, atherosclerosis and other diseases.

(5) Physical exercise can also slow down the pulse and lower blood pressure in quiet time.

4, the impact on the respiratory system

(1) Regular physical exercise, especially some stretching exercises, can strengthen the strength of respiratory muscles and enlarge the chest, which is beneficial to the growth and development of lung tissue and the expansion of lung. It is the increase of vital capacity, and frequent deep breathing exercises can also promote the increase of vital capacity. A large number of experiments show that people who often take part in physical exercise have higher lung capacity than ordinary people.

(2) Physical exercise can increase the breathing depth and effectively increase the ventilation efficiency of the lungs. Research shows that the average person's lung ventilation can be increased to about 60 liters/minute during exercise, and people with physical exercise habits can reach 100 liters/minute or more during exercise.

(3) The average person can only use about 60% of the maximum oxygen uptake in sports activities, and this ability can be greatly improved after physical exercise. Even if the oxygen demand increases in sports activities, it can meet the needs of the body and will not cause hypoxia.

5。 Effect on digestive system

Physical exercise accelerates the process of energy consumption, and the ultimate source of energy substances is food intake. Therefore, exercise will promote the functional changes of digestive system, increase appetite and enhance digestive function.

Effect of 6 on central nervous system

Physical exercise can improve the regulatory function of the nervous system, improve the ability of the nervous system to judge complex changes in human activities, and make a coordinated, accurate and rapid response in time. Research shows that regular physical exercise can obviously improve the working ability of brain nerve cells. On the other hand, if there is no necessary physical activity, the existence and regulation ability of cerebral cortex will also decrease accordingly, leading to imbalance and even some diseases.

7 psychological influence

Physical exercise plays a great role in psychological development, such as enhancing confidence, establishing a good environment, cultivating stable emotions, cultivating independent and decisive ability, and promoting intellectual development. On the other hand, the negative emotions of not actively engaging in sports activities can not be completely vented, which has a negative impact on mental health.

You can also practice explosive power by jumping at full speed (skipping rope is included in Bruce Lee's exercise plan).