Put the towel directly under the navel, straighten the instep, and stick your arms on the palm and bed surface.
Lift your left leg and straighten it. Don't bend your knees, keep trying to lift them up at a 90-degree angle to the bed surface.
Fall to the right, lift your left leg and straighten it up. Don't bend your knees, keep trying to lift them up at a 90-degree angle to the bed surface.
Lie flat and put the towel directly below your navel. Open your arms and put your palms on the bed.
Open the right leg greatly, keep the right leg parallel to the bed surface, move it upward by 10cm, and open the leg outward to the maximum. Hold it like this for 5 seconds, and then return to the original position.