Doing sit-ups to achieve the effect of thin belly requires breathing. Breathe when the upper body is lifted, and inhale when you lean back. If you keep moving at 45 degrees, keep breathing normally and don't hold your breath.

It is also best to learn abdominal breathing when you don't practice at ordinary times, which helps to make abdominal muscles firm. When inhaling, feel the abdominal cavity inward and upward, inhale fully, and then exhale deeply. Whether standing, sitting or walking, you can consciously carry out abdominal breathing, form a habit, and help to reduce your stomach.

Step 2 sit-ups

The traditional sit-up is to put your hands and fingers crossed behind your head, but this sit-up process will raise your head with your hands, which is easy to cause neck muscle strain. Therefore, it is best to cross your hands on your chest, or put your hands on both sides of your ears, and tuck in your abdomen when you sit up.

Sit-ups are not as high as possible. The correct way is to extend the duration of the 45-degree angle between the body and the ground for at least 30 seconds when doing sit-ups. This can make the abdominal muscles fully tightened, which is more helpful for burning abdominal fat. If you can't find a 45-degree angle, keep that action when your abdomen is strongest.

3, the speed of sit-ups

Pay attention to speed when doing sit-ups to lose weight. Speed should be moderate. The greater the speed, the less the abdominal pressure, so slowing down is the best way to lose weight. The most correct way is to get up quickly and go down slowly. Up you can count 1, down you can count 2, 3 and 4.

Note: Sit-ups need correct methods and postures to reduce stomach. It is not difficult to lose weight on the premise of keeping exercising every day and using the right methods.