What is the value of swimming?

Swimming is a sport that people like very much nowadays. People always make appointments with friends or go swimming alone in the swimming pool in their spare time to relax themselves and relieve the fatigue of recent days. Many people know that swimming is a very good form of exercise. But people don't know the sport value of swimming. Next, let me tell you the sport value of swimming.

Effect on cardiovascular system: Swimming plays a very important role in improving the cardiovascular system. The stimulation of cold water can promote blood circulation through heat regulation and metabolism; in addition, the pressure and resistance of water during swimming also play a special role in the circulation of the heart and blood.

When swimming on the water surface, the density of water is more than 800 times that of air. When a person stands in chest-deep water, the chest cavity has to withstand a squeezing pressure of approximately 12-15kg/cm2. This is due to the high density of water. Under water, the pressure increases by 0.1 kilograms for every meter of descent. The water pressure that the body is under has already reached 0.02-0.05kg per square centimeter. When diving, the pressure will increase with the increase in depth and the change in physical conditions. The increase in swimming speed will also increase the pressure load.

The muscle tissue of the atria and ventricles can be strengthened, the capacity of the heart cavity can gradually increase, and the number of heart beats can be reduced, so that the heart's activity can be economical, and the entire blood circulation system can be improved. In the resting state, the diastolic pressure increases and the systolic pressure decreases, so the blood pressure becomes more favorable; the elasticity of blood vessels is also improved. According to statistics from relevant experts, the average person's heart beats about 66 to 72 times per minute in a resting state, and the stroke volume is about 60 to 80 ml. However, for people who participate in long-term swimming exercises, the heart contracts about 50 times under the same conditions, and the stroke volume reaches 90 to 120 ml.

The above is about the true sport value of swimming, which is rarely understood by people. In fact, swimming is also a very good aerobic exercise, and it is very helpful for people who want to lose weight. So if you want to lose weight through exercise, you can try swimming.