Bouncing is the performance of all-round development of the body, and it is useless to train only the thighs. The kind of machine that exercises thighs is sitting there, pushing a board with your feet and putting weight behind your back? Personally, I think this machine is not very good: first of all, this type of machine is "fixed"

"Weight" means that the range of weight activities is limited. Using barbell instead of doing barbell squat will have the same effect, but barbell training is called "freedom"

"Weight" means that the weight can move at will. Doing barbell squats exercises your lower back, front thigh (quadriceps femoris) and buttocks, which is good for heart and lung function. That kind of machine will put a lot of pressure on knees and ankles. Getting fat in the back will be very bad for the joints, and squatting will be much better.

Barbell squats should be light at first, because if you haven't done this training before, barbell squats will make your body feel uncomfortable and easy to get hurt. When I started doing it two years ago, the barbell was only 1 15 kg (about 50 kg), and now it is 335 kg (about 150- 160 kg). When doing squats, you will feel as if the whole world is on your shoulders, and there is a feeling of power explosion all over your body, which is very good.

When going out, it is recommended to do a barbell lunge, that is, the barbell is in place to do a lunge; Then with waist and abdomen strength training, plus upper limb training, this will not only help bounce, but also help flexibility and strength in various sports.