1, sandbags can bring weight to legs, increase running strength, exercise leg muscles and keep fit.

2. Binding sandbags can enhance the comprehensive ability of lower body muscles and contribute to ankle endurance and gait flexibility.

shortcomings

1, will make the knee bear more weight when doing movements, affect the blood circulation of the leg, and easily strain the knee. It may also cause skin wear on the legs.

2, it will make the knee joint bear a greater burden than usual, which is not conducive to your leg development (especially considering your age). For example, it will affect the growth of leg bones and make the calves thicker and deformed.

Extended data

Correct binding method of sandbags:

There are two correct ways to play sandbag leggings. One is sand leggings, which are very wide and bind the calf. Pay attention to wearing stockings or bandages, or you will move. The other one is narrow, which is dedicated to the ankle, that is, the ankle.

Tie sandbags on your legs to exercise. Tie sandbags when using them and untie them after using them. Note: Don't take too long; The weight of sandbags should be what you can bear, not a burden; And the method is proper and gentle. This has no negative effect, but will promote the decline of health, height and weight.