1, strengthen the whole body strength. Any upper body strength needs to be improved by legs. Leg strength is the source of physical strength, and exercising leg muscles can increase our sports performance. No matter what you do in training, when you need great strength, your legs are absolutely involved.

2. Promote muscle growth. The lower body muscle mass accounts for 70% of the whole body muscle mass and is the largest muscle group in the human body. Some friends who want to practice chest and abdominal muscles often say why my muscles grow so slowly is because you lack leg training. Add leg training, and you will find that muscle growth is twice as effective. Because leg exercise can secrete testosterone to the maximum extent, testosterone is an essential hormone for muscle growth.

3. Improve metabolism. Most people want to gain muscle while maintaining a low body fat rate and have clear six-pack abdominal muscles. If you think so, then leg training is necessary. Squat, hard pull, push and other actions will consume more calories in the body, bring more lasting burning effect and comprehensively improve metabolic capacity.

4, delay physical aging. Leg is called "the second heart of human body". How big the leg is, how big the person is, because the leg is the end of the trunk and the heart is the farthest. When practicing legs, a large amount of blood is delivered to the end of the legs, which can speed up the blood flow training in the body and slow down the aging speed.

5. Improve sexual ability. As the saying goes, "If you don't practice your legs in fitness, you will be impotent sooner or later." Regular leg exercises can increase the testosterone level of human body. Testosterone level is directly related to men's clapping ability, and leg exercises can enhance that function.