Sports, an activity involving physical strength and skills, is bound by a set of rules or habits and is usually competitive.
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"Life lies in exercise", which can shape our strong physique and enhance our ability to resist diseases. However, for the human body, there are limits to exercise. Once this limit is exceeded, it may be harmful to people rather than beneficial.
First of all, eat a small amount of food before exercise. "It is very bad for human health to start exercising on an empty stomach and just after eating." Chongqing nutrition and sports experts said that eating a small amount of food half an hour before exercise can avoid digestive disorders caused by physical activity and enhance the exercise effect. If it is morning exercise, you must avoid indigestible food for breakfast, and it is best to eat a small amount of dairy products, cereals, fruits and drinks.
Secondly, we should replenish water in time during exercise. Chongqing nutrition and sports experts say that if the exercise time is less than 1 hour, drink 150 ml to 300 ml of water every15 minutes; If the exercise time is 1 to 3 hours, you should replenish sugar water to your body in time to avoid hypoglycemia. In addition, don't drink ice water during exercise, because drinking ice water during strenuous exercise will cause digestive system problems; Also, don't drink water immediately after strenuous exercise, because after exercise, the metabolism of the human body is accelerated and sweat is discharged. Drinking water immediately will accelerate the loss of inorganic salts in the body, so take a break before drinking normal temperature water and light salt water.
Exercise consumes minerals such as calcium and magnesium in the body. At the same time, calcium and magnesium supplementation will increase the burden on the stomach and easily lead to bad stomach. Drinking soft water is relatively better, but the same mineral composition will be less. Therefore, if you use soft water to replenish water during exercise, you'd better eat some foods containing salt and minerals at the same time. Hard water is more suitable for supplementing mineral components such as calcium and magnesium after exercise. Because it is easy to increase the burden on the stomach and intestines, you can take a few times after exercise. Drinking hard water can also prevent leg cramps and muscle spasms during exercise.
References:
Sports-Baidu Encyclopedia