Push the wall: put your legs together, put your hands on the wall, straighten your legs, extend your hips outward for 10 second, and then close to the wall for 10 second, and repeat it. This will not only make your hips curve, but also have the effect of abdomen contraction, and the lower abdomen will gradually flatten. Golden rooster independence: find a chair, hold the back of the chair, with one foot standing straight and the other foot sticking back in the air. After about 2 seconds, put it down again. The action can be repeated from 10 to 15 times, and then the feet are changed. Standing and squatting: it is best to have elastic rope or skipping rope. If not, you can do it empty-handed. First, open your feet and step on the elastic rope with shoulder width, hold the rope on your shoulders with both hands, squat down your hips so that your thighs and calves are at 90 degrees, and stand up straight after standing still for 8 seconds.