The movement of spring stretcher can play a great role in exercising latissimus dorsi, and the contraction force of latissimus dorsi is needed when stretching spring stretcher. The main way to exercise latissimus dorsi is to bypass a post, like the iron post of a clothes hanger, or to fix two spring tensioners in one place, grab one end with both hands, stand with both feet parallel, and repeatedly stretch the spring tensioners in the body direction.

Bypass a pillar, such as the iron pillar of a clothes hanger outside the house, pull one end with each hand, stand with your feet parallel, and repeatedly pull the stretcher in the direction of your body. When doing the above exercises, you should pay attention to the active joints before stretching, and you can do joint movements in circles for 3 -5 minutes. We should also grasp the appropriate number of times.

Precautions for using spring tensioner:

1. Don't wear sharp and valuables when using the stretcher, so as not to affect the movement and cause injury or unnecessary loss.

2. Before using the wire spring tensioner, check whether the hook structure and installation of the wire spring are firm, so as to avoid slipping and injury accidents.

3. The Zhang Liqi of the wire spring should not be stretched for too long, otherwise it will make the wire spring lose its elasticity.

4. If the steel wire spring stored for a long time rusts, don't use it again to avoid breaking during stretching.

5. Before using the steel wire spring tensioner, one end of the tensioner should be firmly fixed on other objects to prevent slipping or sudden rebound from causing injury accidents.

6. When using the wire spring stretcher, wear long-sleeved sportswear and sweatpants, and the wire stretcher should not be close to the body to prevent the wire spring from pinching the skin and hair when stretching and contracting.

7. When using the wire spring tensioner, each wire spring must be hooked on the big circle and pulled by hand holding the handle. Don't pull with several big rings, in case the force is too concentrated on the wire spring ring, which will cause the wire spring to break.

8. After the action is completed, the spring should be controlled to return slowly by muscle strength, which can not only avoid the collision and overlap of the spring steel rope, but also give full play to the unique advantages of the tensioner's "retreat" movement, so that the muscles can be stimulated to the maximum extent, thus achieving the best sports effect.