In winter sports, in addition to skating, some swimmers should be looking forward to swimming in winter. Winter swimming is the favorite of many swimmers. It can not only challenge perseverance, but also enhance physique. But not everyone is suitable for winter swimming. When is the best time for winter swimming?
There are many advantages of winter swimming, which can speed up blood circulation and metabolism, enhance immunity, and exercise people's will. However, it is worth noting that winter swimming is a high-risk extreme sport, not everyone is suitable.
These people are not suitable for winter swimming
People suffering from more serious heart disease, hypertension, hepatitis, nephritis, gastric ulcer and other diseases are not suitable for winter swimming. In the case of physical maladjustment, winter swimming may aggravate the disease.
Patients with otitis media can not swim in winter, so as to prevent water from entering the ear and being difficult to discharge, resulting in perforation of the middle ear. After the cure of otitis media, you should wear earplugs when swimming. Do not let the ears get water.
People with infectious skin diseases, as well as people with any infectious diseases, are not suitable for winter swimming. In addition, young people under 16 and old people over 70 are not suitable for winter swimming because of their special physical condition. Patients with mental disorders are not suitable for winter swimming due to lack of self-control.
When is the best time to swim in winter?
At noon, the sun is abundant and the temperature is relatively high, which is the best time for winter swimming. In the morning and evening, due to insufficient sunshine and limited light, accidents are easy to happen.
When the water temperature is kept at 10-14 ℃, 100-500m is the best time for ordinary people to swim in the water; when the water temperature is lower than 10 ℃, the swimming time should be strictly controlled.
Pay attention to these before, during and after winter swimming
Before: winter swimmers usually start their activities in summer or autumn. They keep going until the end of the cold winter. They gradually adapt to the process of water temperature changing from above 15 ℃ to below 1 ℃, so that they won't feel uncomfortable because of sudden water in winter.
Before going into the water, we should do enough warm-up exercise to let the body gradually enter the water, so that the body can gradually adapt to the water temperature, and avoid the occurrence of cardiovascular accidents caused by too strong sudden stimulation.
Chinese: according to their age, health, swimming skills, etc., to determine the length of winter swimming time. At the same time, water temperature, water area, water quality and flow rate should be considered comprehensively. The first experience of winter swimming, people will feel very strong cold stimulation, when the body feel can not bear, must be in time to water. With the gradual adaptation to the winter swimming, and then gradually increase the time.
After: keep warm after swimming in winter. Dry your body with dry towel immediately after landing.
After putting on the clothes, recover the body temperature by jogging or beating in place. Do not immediately heat up or take a hot bath to avoid the hot water irritating the limbs and causing a large amount of frozen blood to flow back to the heart.