1. Stretching exercise can improve the state of muscle stiffness and contraction through specific actions, exercise the stretching ability of muscles and tendons, increase muscle elasticity, and store more elastic potential energy during exercise.

2. Stretching before exercise can make tendons more flexible, because it increases body temperature and increases the range of joint activities, thus avoiding the damage of joints, ligaments and muscles. Moreover, stretched muscles can withstand pressure better than unstretched muscles.

3. Regular stretching exercises can relieve muscle tension, make the body more relaxed, and maintain the flexibility of the body through various stretching actions, so that the body will not become more and more rigid with age.

By doing warm-up exercises to warm up the whole body, the body can achieve the following effects:

1 increase body temperature.

The increase of body temperature will increase the elasticity and flexibility of muscles, tendons and ligaments, and reduce the possibility of muscle injury.

Prepare the cardiovascular system for exercise.

Proper warm-up exercise makes the heart, lungs and blood vessels of human body gradually adapt to the state of exercise. Without warm-up exercise, it is difficult for the body to adapt to the requirements of formal exercise, and people will soon feel short of breath and very tired. This is also in line with the principle that the amount of exercise should be gradual.

3 increase the blood flow of muscles.

In this way, the more blood flows to the muscle, the more oxygen and glucose the muscle needs to produce energy.

Increase blood flow to the heart.

The more blood supply to the heart, the more helpful it is to prevent cardiovascular problems.

5 improve muscle flexibility

Make muscles more elastic and exercise more flexible.

6 enhance the ability of nerve transmission

With the increase of cardiovascular system activity and blood volume, the coordination between nerves and muscles will also be enhanced, which means faster response and more agile movements during exercise.

7 Improve the absorption and utilization rate of oxygen.

Due to the increase of body temperature, muscles can better promote the decomposition of oxygenated hemoglobin, release oxygen for muscles to burn fat conveniently to generate energy and provide human exercise needs.

Regular stretching exercises can relieve muscle tension, make the body more relaxed, and maintain the flexibility of the body through various stretching exercises, so that the body will not become more and more rigid with age.