Sit in a chair, straighten your body, lift the dumbbell to your back shoulder, stand on tiptoe, and keep your lower body in a resisting state. Straighten your back and twist your waist left and right. When doing this, try to keep your upper body straight and turn it left and right ten times.

Lie on your back, stretch your legs and pull up.

Lie on your back, lift your legs with abdominal muscles to make them form a 90-degree angle with your body for about five seconds, then slowly lower your legs until you leave the ground for about a few hours. Repeat this action for ten times, and the effect is outstanding.

Lifting arm movement

Lie on your back, bend your legs and try to stick your abdomen to the ground. After softening the body several times, gradually lift the tail keel off the ground so that the waist is close to the ground. Lift your arm upward with your abdominal muscles and keep it in this state for about fifteen seconds. Doing it 30 times a day can not only reduce abdominal fat, but also strengthen the muscle strength of the back.