Before and after swimming the temperature of the pool water is relative to the blood

What safety precautions should be paid attention to before, during and after swimming
Before going to sleep: it is best to experience the water temperature before entering the water. If there is too cold or overheated water temperature, try not to rush into the water. The temperature of the pool water affects blood circulation, heart, blood pressure, respiration, metabolism, human skin and muscles. In water: when swimming, you need to protect your eyes and prevent sunburnWhat are the precautions before and after swimming
Food preparation should not be less: before swimming, you should first increase your calories, so as to adapt to the stimulation brought by low water temperature during swimming. Before swimming, you can eat eggs, meat, foods with high protein content, and sweets appropriately. Secondly, we should supplement some foods with high sodium, calcium and phosphorus content. In additionCan you eat before and after swimming
Before swimming, you should eat something in moderation. You can only eat it 40 minutes after swimming. Many people feel hungry after swimming, because the muscles of their limbs move widely during swimming, which consumes a lot of energy and calories. Therefore, before going swimming, you must supplement appropriate food. In terms of food selection, it is mainly easy to digestWhen summer comes, swimming is very popular. What should we pay attention to before and after swimming
Swimming is a sport that everyone likes in summer. At the same time, it has the effect of fitness, but many aspects should be paid attention to before and after swimming. Swimming should pay attention to the water temperature. When swimming outdoors, although the body will not feel hot after soaking in the water for a long time, the head will be exposed to the sun for several hours on the waterWhat are the precautions and preparations before swimming
Precautions before swimming don't swim in hunger or on an empty stomach. Many people will feel hungry after swimming, because the range of activity of limb muscles is large during swimming, which consumes a lot of energy and heat of the human body. Therefore, before going swimming, you must supplement appropriate food, in terms of food selectionWhy can't you eat before and after swimming
In fact, you can eat before and after swimming, but you need to pay attention to the time. It is better to have at least an hour between swimming and eating. Eat properly before swimming: it can effectively avoid hypoglycemia. Don't swim immediately after eating. It's better to eat one hour before swimmingWhat should you pay attention to before and after swimming? Thank you
The preparation work before swimming is essential, otherwise red eye disease, solar dermatitis, cramps and other diseases may come to the door one by one. Anti cramp: swim for up to 2 hours continuously. In order to avoid accidents, in addition to swimming, you must "scout" the terrain in advance, and you must do warm-up exercises before launching. Director Li introducedHow to arrange meal time before and after swimming
It is recommended to drink 600 ~ 800 ml of water before swimming. If the exercise time is less than 1 hour, you are not allowed to replenish food halfway, but you must replenish enough water. It is recommended to drink 150 ~ 300 ml of water every 15 minutes. The exercise time is 1 ~ 3 hours, which belongs to medium-sized exercise. Drink 500 ml of water during swimming, and it is recommended to supplement sugar to the body in time to avoidWhat should you pay attention to before and after swimming
Precautions before and after swimming: it is not suitable to swim 40 minutes after meals and on an empty stomach; Cold after strenuous exercise is easy to cause shock, and it is not suitable for swimming; Before swimming, in addition to activities (preparation), wash your head and body with clean water to keep the pool water clean; No urination or defecation in the swimming pool; V