Arm: Do push-ups. If your arm strength is weak, you can support your arm on a wall or a table.

Abdomen: Lift the calf together at 90 degrees to the thigh, raise your hands above your head, with your left elbow touching your right knee and your right elbow touching your left knee.

Hip: lie on your back, cross your legs, lift your shoulders and feet off the ground, hold your abdomen for 5 seconds, put it down and do it 10 times.

Legs: Lie on your side, support your upper body with your arms, slowly lift your legs, hold for 5 seconds, do 10 times, and then change the other leg.