Strength training such as sit-ups and push-ups can't be partial weight loss. To have strong rectus abdominis, you need abdominal muscle training; But if you want to get rid of belly fat, you need to reduce body fat. The reason why abdominal fat accumulates is because people usually consume too many calories and the human body does not discharge them in time, so sit-ups can't effectively discharge fat, and of course they can't lose weight.

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Sit-ups can also exercise the groin. There are many capillaries and acupoints in the groin. Doing sit-ups can stimulate blood vessels in the groin and promote blood circulation in the abdomen through exercise, thus treating and relieving gynecological diseases. At the same time, sit-ups can also stretch back muscles, ligaments and spine, and can adjust the central nervous system by stretching the spine. Moderate exercise can also improve the body's immune function, thus improving the body's disease resistance.

Abdominal breathing during sit-ups may not be used to it at the beginning of practice, or even suddenly I don't know how to breathe, but this breathing method not only helps to stimulate gastrointestinal peristalsis and promote the discharge of waste in the body, but also makes the air flow smooth and increases vital capacity. In addition, it is a good way to prevent constipation.

References:

Baidu encyclopedia-sit-ups