Juyuanpa, also called frog pa, is the basic condition for learning dance and a kind of yoga. The thighs should be at right angles to the body and the calves should be at right angles to the thighs. Stick the pubic bone to the ground as much as possible. It was painful at first. If you can't insist, don't force it. Just slowly.
Frog prone is a kind of dance or gymnastics, which can exercise thigh muscles, improve the flexibility and stability of the human body, and also help to improve the body shape, cultivate self-cultivation and lose weight. There is no harm in the action itself, but if the operation is not correct or the preparatory action is not made, the leg muscles or ligaments may be strained.