It is necessary to stretch twice before and after exercise. It is not good to stretch only after exercise and treat it as stretching before the next exercise. Stretching after exercise and stretching before exercise have different purposes and completely different effects. Warm-up exercise is very important for any sports activity or training. A fixed warm-up program is very important to prevent sports injuries. An effective warm-up exercise is composed of many key parts, which work together to reduce the occurrence of sports injuries. ?

Of course, many people want their legs to be thin, but how can they be thin?

That's stretching. Stretching many times a day will make the muscles move and thin, and make the legs thin. There is no doubt that this can be said to be stretching before exercise. Stretching can not only make many people's legs thinner, but also give us another effect during exercise. Another purpose of stretching before exercise is to prevent injuries during exercise.

Because you need a relaxation area before exercise, you should stretch the target muscles and participate in the muscles first, so that your body can get some exercise. Stretching is to lengthen the muscles and tendons, move the tibia, let the muscles and tendons move separately, increase the range of activities, ensure our unrestricted free movement in high-intensity training, and avoid sports injuries.

However, stretching after exercise is completely different from stretching before exercise and plays different roles. The main purpose of stretching after training is to repair the damaged muscles quickly. Secondly, after training, our muscles will be congested, stiff and bloated, and we feel like we are going to explode. However, stretching helps to keep muscles from being stiff, and it can also relieve lactic acid caused by high-intensity training, so that lactic acid can be excreted as soon as possible to avoid delayed muscle soreness.

Therefore, whether before or after training, in order to avoid the above problems, we can't ignore this short period of less than ten minutes!