What is the reason of hind leg cramp during exercise? It is very common to have cramps in the hind legs during exercise. Once this happens, it is very necessary to solve it immediately. However, many people are not very clear about the causes of hind leg cramps after exercise. Let's find out what causes cramps in the hind legs after exercise.

How is the hind leg cramp after exercise? Excessive exercise often leads to "leg cramps", especially the calves and pedals. "Leg cramp" is a long-term involuntary contraction of muscles. There are many reasons for "leg cramp":

1. Muscle atrophy ("leg cramp") occurs because the muscles are not fully prepared for activities before excessive exercise, and the foot muscles suddenly change from static to active, and the foot muscles cannot be integrated at once;

Second, the outside temperature is greatly reduced, which will also cause "leg cramps." For example, if you suddenly get cold, your muscles will have obvious muscle atrophy. Therefore, when swimming in winter, "leg cramps" sometimes occur in calves and feet. Especially when swimming, more common. Because people enter the water, their bodies release 25 times more heat than the gas in Guangzhou Sun Yat-sen University, which stimulates the nerve effectors on the skin, so pressing the nerve center system causes muscle atrophy.

Third, when registering for excessive exercise and overwork, the function of the central nervous system that manipulates muscles has changed, and some metabolites (such as lactic acid bacteria, etc. ) all accumulate in muscles, which changes the function of muscle tissue and is also the cause of "leg cramp";

Fourth, long-term registration of excessive exercise, hyperhidrosis, salt and fluoride deficiency (mainly edible salt) can also cause "leg cramps".

We immediately knew the key reason of "leg cramp". When we play sports, we can prevent leg cramps if we pay attention to the following:

First, pay attention to prevent feet from being too cold or getting cold for a long time, especially in water.

Second, before excessive exercise, we must be fully prepared for activities;

Third, don't be overworked and don't drain when you are tired;

Fourth, after sweating too much, try to supplement some edible salt, such as drinking some salt water and adding a little more salt to the food.

After reading the above detailed introduction, we can understand that there are various reasons for leg cramps, most of which are closely related to insufficient preparation before fitness exercise. Too much long-term fitness exercise can also cause leg cramps. Therefore, when this happens, we must pay attention to the needs of overwork under fitness exercise and make full preparations in advance.

What is the cause of leg cramp (1)? Too much salt is lost.

Excessive exercise, the body loses too much salt because of sweating, which destroys the balance of body electrolysis. Because the sodium oxide content in the body is too low, the humoral regulation of muscles and nerves is improved, leading to muscle contracture.

(2) Muscle contraction and left ventricular imbalance.

In fitness exercise, due to the rapid and continuous accumulation of muscles, the time for releasing pressure is too short, which destroys the harmonious relationship between muscle contraction and left ventricular replacement and leads to muscle spasm. This kind of muscle contracture, which obviously closes and inhibits the left ventricle, is easy to occur when muscle strain occurs.

(3) Cold stimulation.

When outdoor activities are carried out in a cold natural environment, if there is not enough warm-up exercise, muscles will be stimulated by cold, and muscle spasms will often occur.

When muscle spasms, some muscles are hard or prominent, causing severe pain, which is not easy to relieve for a while. After partial remission, there is still discomfort and muscle contracture is easy to occur again. When muscle spasm occurs, it is generally through gradual exertion and continuous stretching to release the pressure of the muscle with tendon contracture and remove the pain. When the calf cramps, you can lie flat on the ground, hold the forefoot with the other hand, straighten the kneecap and pull hard; You can also sit or lie flat, straighten your kneecaps, put your feet against your abdomen with your partner's hands, stretch your body forward with appropriate force, and push your feet back slowly with your partner's strength. In addition, you can also push, knead and pinch leg muscles to relieve tendon contracture.

In addition to adding a certain amount of salt, leg cramps should also be kept warm to prevent physical exercise, especially when the outside temperature is cold. It is necessary to wear fashionable jeans and their clothes and pants, not necessarily naked. That will have an excellent cold-proof and warm-keeping effect, and of course it will also reduce the probability of leg cramps. Warm-up exercise before fitness exercise can also prevent leg cramps.