Abdominal muscles are the most difficult part of the human body to practice, because every action in daily life involves abdominal muscles, so its anti-fatigue degree is much higher than other parts of the body. It is the most scientific to practice five times a week, because muscle tissue needs more repair after exercise to form.
Let me remind you that it is better to divide the abdominal muscles into three parts: the upper abdomen and the lower abdomen. Divide your plan into four groups with an interval of 60-90 seconds, which is a scientific exercise method.
The main actions are sit-ups, leg bending, sit-ups, kneeling posture, stretcher, abdominal posture, knee bending, leg lifting, leg lifting and so on.
Bouncing: You can do one-legged jumping, vertical jumping and frog jumping.