Lie on your back, with your right foot flexed, your sole flexed, your right knee flexed at a 90-degree angle, your left foot straight up, and your feet pointing to the sky. Through your right foot, slowly lift your hips and try to reduce the height of your back from the ground. Then slowly back off, so that the lower back just leaves the ground, but not touching the ground. Hold the action for two seconds, lift it again, and then return to the starting position. Turn to your left foot and repeat the above actions.
Lie on your left side, with your legs straight, your left arm supporting your head and your right hand supporting your upper body. Keep your left foot still and raise your right foot about six inches. Swing your right foot forward slowly, as far as possible, for one second, and then swing back for one second. Repeat this action fifteen times, then turn right.
You can also do some ordinary sports, such as swimming, riding a bike and climbing stairs. Remember to rub it yourself after exercise massage, otherwise it will be bad to become a muscle! !