note:
1, the correct way of sit-ups: lie on your back on the bed, your legs are bent normally, your hands are half clenched at your ears, and your arms are as wide as possible. When doing the action, let the waist exert force to make the upper body straight, pay attention to the waist not to leave the bed surface, then slowly descend to make the body in the original position, and repeat the above actions. When the abdominal muscles pull you up, you have to exhale, so as to ensure that all the muscles deeper in the abdomen participate in the work at the same time. Don't straighten your legs when practicing.
2. Many sit-ups are incorrect.
Wrong action: lying on the ground, knees bent, lifting the whole upper body, elbows touching knees, hands crossing the neck.
Cause of error: this practice is that the muscles at the root of the thigh are working, not the abdominal muscles. If you go on for a long time, your waist muscles will be tense and your hands will compress your neck nerves.
3. While exercising, drink more water, reduce the intake of sugary and fatty foods, and eat more fruits and vegetables containing plant fiber. Pay attention to the above points, you can definitely lose a small belly.