2, double angle: stand up, open the length of one leg with two feet, cross the two hands behind your fingers, and extend down from the hip bone to maintain 1 minute _.
3. Pyramid: Open the length of one leg before and after the legs, support the ground with both hands, with the fingertips facing backward, find the knee joint in the chest, keep 1 min _, and switch sides.
4. One-leg standing flexion: Starting from standing flexion, the left leg is pulled up, the knee joint is bent, the right hand grabs the right leg backwards for 30 seconds, and the side is changed, and the back of the thigh is pulled down.
5, lateral lunge squat: stand up, squat, bend your right knee, foot on the ground, knee joint open, left foot straight to the left, foot hook back, hands folded, right rear arm against your right knee, for 30 seconds, change sides.