1.Extension and flexion exercise: take the supine position, head pad a small pillow, legs taut, hands palms facing upwards pillow under the head. Legs knee joints in turn slightly raised, lowered, do flexion exercises, left and right legs were done 6-8 times each. 2, leg lifting exercise: the same posture as above. Legs together, both legs in turn raised at an angle of 45 degrees, each 4-5 times. 3.Leg splitting exercise: the same posture as above. Legs straight, while slowly inhaling, as far as possible to both sides of the legs, and then exhale, and legs together, repeated 4-6 times; bend the legs, knees as far as possible to both sides of the pressure area, and then together, straighten the legs, back to the original preparatory movements, so 6-8 times. 4, leg exercise: take the supine position, head pad small pillow, legs taut, legs on both sides of the body. First lift the right leg, stay in the air for a few seconds and then put it down, repeat the above actions with the left leg, alternately 4-6 times. 5, swing leg movement: the same posture as above. Legs straight, in turn, after lifting left and right swing; lift the legs, imitate the action of riding a bicycle, swing back and forth, each 4-5 times. 6.Side split-leg exercise: the same posture as above. Straighten the legs, left and right in turn, the most substantial side split legs, legs do not lift, each 4-6 times. 7, leg side circular movement: the same posture as above, lift one side of the leg, in the air for circular action, and then change the other side of the leg to do the same action, each 8-10 times. 8, the side of the leg lift exercise: first take the right side of lying, the right hand under the head, the left arm along the torso stretch. Straighten the left leg, lift upward 6-8 times; body then take the left side of lying, repeat the above actions. 9, knee side back swing movement: first left side lying, the left hand under the head, the right arm along the torso stretch. Right leg bent, knee to the abdomen close, then straighten, force back swing, so repeated 6-8 times; body to take the right side of lying, repeat the above actions. 10, side kick exercise: first take the left side of the lying position, the right leg straight, leg force forward kick, then force backward swing, body bending, so repeated 6-8 times; body then turn to the right side lying, repeat the above action with the left leg.