Stand up straight, feet shoulder width apart, hands open and straight to both sides, palms outward. 2. Slowly pull your arm forward 30 times, and then pull it back 30 times. This exercise should be repeated three times (that is, turn 90 forward and 90 backward).

Arm movement II.

Stand up straight, feet shoulder width apart, hands straight forward, palms forward. 2. Cross your hands up and down, and your arms can't droop. 3. Do it 30 times.

Arm movement 3.

Like doing push-ups, always support your body with your hands, but your knees should touch the ground. 2. Hands shoulder width apart, arms straight, slowly count to 5, elbows bent down. 3. Stop at the lowest point for 2 seconds, and then slowly straighten your arms. Do 10 times.