1. Put a stool behind your back and cross your hands on your chest.
2. Feet are shoulder-width apart and toes are slightly outward.
3. Inhale, squat, and push your hips back at the same time, so that your body's center of gravity falls on your heels.
4. Squat down to the position where the thighs are parallel to the ground and hold for 1-2 seconds.
5. Inhale and push your body up with the strength of your heel and return to the starting position.
6. This combination action can exercise thighs, buttocks and core muscles, and improve the stability and balance of the body. At the same time, because of the need to use stools, it can also increase the difficulty and challenge of training.