1. First, stand on the side wall. After the right foot cuts the left foot, the heel of the right foot should be placed 30-45 cm in front of the toe of the left foot.

2. Put your hands and palms flat on the wall. The right knee is bent and the left foot is almost straight. Slowly push your hips forward until your calf or left leg feels tight. Hold this position 15-30 seconds.

3. Then bend the left foot slightly, but the heel of the left foot does not leave the ground, and tighten the tendon of the left foot. Repeat this action with the other foot and stick to it for a long time to achieve the effect of losing weight.