1, arms and thighs are perpendicular to the ground, heels and knees are close together.
2. Relax the whole spine 1 min.
3. Straighten your right leg too high and raise your head at the same time.
4, bend your knees, bow your head, and hold your forehead with your right knee.
5. Raise your right leg again, and raise your head for 10 second, and repeat the three groups.
6, return to the initial position to adjust breathing.
7. Practice the left leg in the same way, in three groups (repeat the two cycles once each).