First, bend your legs and abdomen.
Main exercise area: lower abdominal muscles. Keep your upper body still, put your hands on your sides and bend your legs and abdomen. When your legs are down, your legs are straight, but your feet don't touch the ground. Use abdominal control. Each group has three groups: 15 and * * *, with a rest of 30 ~ 40 seconds.
Second, leg lifts and sit-ups
Main exercise area: upper abdominal muscles. Lift your legs and thighs, keep them perpendicular to your body, lift your upper body upward, keep your neck still, and don't lift your upper body too high. 20 ~ 25 people in each group, * * * three groups.
Third, lie on your back and alternately close your legs.
Main exercise site: lateral abdominal muscles. Put your hands behind your neck, bend your legs, and then push out one leg alternately. Push out the leg at a certain distance from the ground, but not too high, don't touch the ground with your feet, and then the other side. One elbow should be as close as possible to the knee joint when the other leg flexes. Control with lateral abdominal muscles. Kick each leg 15 times, divided into three groups.
Four, ingot belly (also known as two heads)
Main exercise area: abdomen. This action can be done on the chair or beside the bed. First of all, you should put your hips on the edge of the chair, don't sit too much, keep your body tilted, support your body behind your hands and keep your body balanced. Then tighten the upper body and legs to the abdomen with the abdomen as the center, and the flexion range of the legs should be balanced. 20 times in each group, * * * three groups.