First of all, at this stage, there is no evidence that exercise can achieve local fat loss and whole body fat loss, but the "sensitivity" of each part is different, and there will be many differences. Therefore, reducing fat mainly depends on aerobic exercise, such as jogging every 40 minutes.

Secondly, the relaxation of abdominal muscles will make the abdomen bulge, and the tightness can make the abdomen look flat. Transverse abdominis is beautiful, but the abdominal muscles at this time do not need much training, because blindly increasing transverse abdominis will not have obvious effect, but there is enough subcutaneous fat to express the muscle shape. In fact, this principle applies to the whole body, but Asian men are used to storing fat in the abdomen, so abdominal muscles are difficult to show. There is less subcutaneous fat in the abdomen, and any abdominal muscle will be obvious; More importantly, rectus abdominis is the main force that makes abdominal muscles cling to the spine. If you don't strengthen the rectus abdominis, your belly won't be flat. It is popular to do flat support to strengthen rectus abdominis. In fact, the effect of supine knee lifting is more obvious.

Third, combining exercise with diet and rest will be effective. Reducing fat requires that the total calorie intake must be lower than the total consumption, which is the key to the problem-a reasonable diet.

After reading the above, you should understand that you can do flat support, lie on your back and straighten your knees/bend your knees to lift your legs and roll your chest. However, sit-ups are generally not recommended now.