Four benefits of water sports

With the gradual enhancement of health awareness, people are beginning to pay more and more attention to fitness exercises, especially water sports which are different from traditional exercises. Water sports can exercise various parts of the human body and consume more calories than other sports, so water sports have gradually become a new favorite for physical exercise. Water sports are not only fun, but also have many benefits.

1. Enhance myocardial function

When people exercise in water, all organs are involved, which consumes a lot of energy and speeds up blood circulation to supply more nutrients to the exercise organs. The increased blood velocity increases the load on the heart, causing it to beat faster and contract more forcefully. People who swim regularly have excellent heart function. The average person's heart rate is 70-80 beats per minute, and the stroke volume is 60-80 ml. People who swim regularly can reach a heart rate of 50-55 beats per minute. Many excellent swimmers can reach a heart rate of 38-46 beats per minute, with a stroke volume of 90-120 ml. When swimming, the action of water makes it easier for blood from the limbs to flow back to the heart, increasing the heart rate. Long-term swimming will significantly increase the motility of the heart, make the contraction stronger, increase the thickness and elasticity of the blood vessel walls, and increase the blood output per stroke. Therefore, swimming can develop a strong heart.

2. Enhance immunity

The water temperature of a swimming pool is usually between 26 and 28 degrees. Soaking in water dissipates heat quickly and consumes a lot of energy. In order to replenish the heat dissipated by the body as quickly as possible to meet the needs of cold and heat balance, the nervous system responds quickly, speeding up the body's metabolism, enhancing the body's ability to adapt to the outside world, and resisting the cold. People who regularly participate in winter swimming are less likely to catch colds due to improved body temperature regulation function. It can also improve the body's endocrine function and increase pituitary gland function, thereby improving resistance and immunity to diseases.

3. lose weight

When swimming, the body is directly immersed in water. Water not only has great resistance, but also has very good thermal conductivity and dissipates heat quickly, thus consuming more calories. Just like a freshly boiled egg, the cooling speed in the air is much slower than that in cold water. Experiments have shown that the calories consumed by a person running in a standard swimming pool for 20 minutes is equivalent to running at the same speed for 1 hour on land. The calories consumed by staying in 14-degree water for 1 minute are as high as 100 kcal, which is equivalent to the heat dissipated in the air at the same temperature for 1 hour. It can be seen that exercising in water can help many people who want to lose weight achieve twice the result with half the effort. Therefore, swimming is one of the most effective exercises to maintain body shape.

4. Fitness

When swimming, people usually use the buoyancy of water to lie prone or supine in the water, relax and stretch the whole body, so that the body can develop comprehensively, symmetrically and harmoniously, and the muscle lines can be smooth. Exercising in water reduces the impact of the ground on bones during ground exercise, lowers the chance of bone aging and makes bone joints less likely to deform. The resistance of water can increase the intensity of human exercise, but this intensity is different from equipment training on land. It is very gentle, and the intensity of training can be easily controlled within the aerobic range. It will not grow very stiff muscles, and can make the lines of the whole body smooth and beautiful.