2. Release the pressure on your legs, sit by the bed with your knees bent and close to the road. The left arm is straight to the left, and the right elbow is bent to hold the left arm and pull it to the left for about 5 seconds. Repeat 2 groups up and down.
3. Straighten the left foot forward, cross the left leg, and gradually stretch the upper body forward to make it close to the foot. You feel the back of your thigh and your ass being pulled. Hold on 10 second. Pay attention to straighten your back and tighten your abdomen. Repeat 3 groups up and down.
4. The left knee joint stands up, the left leg is cross-legged, the elbows of both hands are close to the bed surface, and the upper body is stretched forward to the maximum, and it is held for 10 second. Repeat 3 groups up and down.