Stand on it. Inhale, the upper body slowly rotates to the right and rear, and the right arm is horizontally lifted and extended to the right and rear. Then put your left hand flat on your left chest and push it to the right, while exhaling. When turning left, the action is the same and the direction is opposite.

Stretch the chest

Stand with your arms hanging down and your feet shoulder-width apart. Inhale, stretch your hands slowly upward through your side, expand your chest as far as possible, hold your head up and hold your chest out, and return when you exhale.

Squeeze your chest with your hands.

Same position as above. Put your hands on both sides of * *, inhale deeply, then exhale slowly, squeeze * * with your hands at the same time, and lean forward and restore when inhaling.

Step 4 tuck your knees and press your chest

Stand up straight with your feet together. Inhale deeply and then exhale slowly. Kneel down at the same time, put your hands on your knees, and squeeze your thighs as much as possible on your abdomen and chest to help remove the residual gas in your lungs and recover when inhaling.