How long is a good time to swim?

In summer, many people like to swim. The venues are mainly outdoor rivers, indoor swimming pools, etc. There are many people swimming in areas with water. However, this is also the reason why many lives are lost every year. The probability of accidents when swimming is very high. We must choose a good swimming location, be vigilant about safety, and pay attention to the time of each swimming to reduce the occurrence of harm. So how long is a good time to swim?

According to the International Medical Association Swimming Federation, health-care swimming requires a single swimming time of 20 to 45 minutes, and the swimming distance varies according to age. Generally speaking: 10 to 11 years old swim 500 to 600 meters; 12 to 13 years old swim 750 to 800 meters; 14 to 50 years old swim 1000 meters; 50 to 60 years old swim 750 to 800 meters; 60 to 70 years old swim 500 to 600 meters; those under 10 years old and over 70 years old swim 300 to 400 meters.

For beginners, the best time is to control the training time to one and a half hours to two hours. The average athlete’s training time is only about two hours. Swimming is beneficial to the functions of various parts of the body, such as muscle growth and relaxation, increase in lung capacity, body resistance and so on. Swimming every day is not good for most people, but if you insist on swimming regularly, it will only benefit your body and not harm it!

There are many benefits, such as:

1. Ensure life safety

The earth is covered with rivers, lakes and oceans, and humans inevitably have to deal with water in their lives. Whether you actively go into the water to swim, play or do water work, or passively fall into the water or have an accident while on a boat, your life will be threatened if you cannot swim. If you can swim, your survival will be guaranteed. You can not only save yourself, but also save others. Therefore, the ability to swim has become one of the important means to ensure survival.

2. Strengthen your body

When swimming, all organs of the human body are exercised due to the water pressure, resistance, buoyancy and lower water temperature. The thermal conductivity of water is about 25 times greater than that of air. It has been determined that the amount of heat given off by a human body when staying in 12-degree water for 4 minutes is equivalent to the amount of heat given off by a person on land for 1 hour. Regular swimming exercises can improve the body's ability to regulate temperature and adapt to changes in external temperature. In addition, muscle activity during swimming consumes calories, so the human body must replenish calories as quickly as possible, thereby promoting the enhancement of metabolism in the body.

3. Disease prevention and treatment

Regular swimming exercises can effectively enhance physical fitness, so swimming is also a means of preventing and curing diseases. When swimming, due to the stimulation of cold water, long-term exercise can enhance the body's ability to adapt to changes in the external environment, resist cold and prevent diseases, so regular swimmers are less likely to catch a cold; due to the buoyancy of water and the body lying flat on the water surface, the spine is fully stretched, which is beneficial for preventing scoliosis caused by sitting or standing for a long time; due to the water flow and wave breaking, the whole body surface produces a special massage effect, because it can help and promote functional recovery, it is very helpful for the rehabilitation of paralyzed patients and disabled people. It is reported that regular swimming has obvious therapeutic effects on people with weak bodies and many patients with chronic diseases, such as chronic gastrointestinal diseases, neurasthenia, habitual constipation, chronic bronchitis, asthma, etc.

How long is good for swimming? The swimming time for children and adults is different, but generally speaking, each swimming session should not exceed 2 hours. Of course, this is not just the swimming time, it also includes the entire swimming time. Regular swimming is very good for your health. The things you need to pay attention to when swimming in summer are different from those in winter. However, we must follow the principle of safety. If we feel unwell, we must take immediate measures to avoid life-threatening accidents.