The first criterion for choosing sportswear is material. It is best to make coats and underwear with materials that can sweat, especially try to avoid wearing pure cotton underwear. It is true that cotton underwear absorbs sweat, but the absorbed sweat cannot be distributed, which causes the soaked underwear to stick to the skin, making the skin gradually cold and difficult to keep warm.

In autumn and winter when the temperature difference is relatively large, wearing cotton underwear is more likely to make people catch cold after strenuous exercise, resulting in symptoms such as colds and headaches. Materials like polypropylene can help dispel moisture and help keep skin dry.

Extended data:

Fitness precautions:

(1) To do fitness exercises in winter, warm-up activities should be sufficient, especially outdoors. First, make full preparations for warm-up, and then carry out higher-intensity fitness exercises.

(2) The thickness of clothes should be suitable for winter fitness activities, and the head, back and feet should be kept warm. When you exercise outdoors, you should pay attention to keep warm. After exercise, don't stand in a windy place and blow. Go back indoors as soon as possible, dry your sweat and put on clean clothes.

(3) The environment should be clean and comfortable. When you exercise indoors, you must keep the indoor air circulating and fresh.

(4) Appropriate exercise methods In winter fitness, it is necessary to improve the intensity and intensity of exercise, increase the number and frequency of exercise, increase the content of aerobic exercise, and extend the exercise time accordingly, so as to improve the function, develop special qualities, consume body fat and prevent excessive accumulation of fat.

(5) Changes and adjustments should be made according to personal physique. For patients with cardiovascular diseases, strenuous exercise should be prohibited, and the amount of exercise should be gradual. Middle-aged and elderly people with respiratory diseases, such as chronic bronchitis, emphysema, asthma, cor pulmonale, hypotension, etc. Static muscle exertion should be avoided.

References:

Baidu encyclopedia-fitness