Hello, I'm a fitness instructor. In this case, you suggest doing aerobic exercise to reduce fat first, such as running and skipping rope, otherwise even the abdominal muscles are buried under the fat, which has no effect. Don't do sit-ups if you exercise your abdominal muscles. The effect is too general. It is recommended to do it with belly rolling, supine hovering and leg lifting. Every movement is one day, such as 20-30 groups of belly rolling, 3-5 groups of sitting every day, and exercise once a week. Stick to a meal and you will see the effect.