Push-ups can also exercise abdominal muscles. Remember, when you exercise, you must not get tired at once. You must do it in groups to be effective. Generally, you should do about 100 at a time, with at least 5 groups, depending on your own situation.
Hold your hands high, your body hangs vertically, your waist and abdomen are lifted hard, and your legs are at 90 degrees to your upper body. Be careful not to shake your body and work in groups. 6. Abdomen
(1) Lie on your back, with your ankles fixed, your upper body sitting up, the angle between your upper body and lower limbs is greater than 90 degrees, and your rectus abdominis is extremely tight. Keep this static posture for 8 ~ 10 seconds or a little longer, and then relax.
(2) Lying on your back, the lower limbs and upper body are inclined into a V shape at the same time, and the rectus abdominis is extremely tight. Keep this static posture for 8 ~ 10 seconds or a little longer, and then relax.