1) Leg stretching exercise: Lie on your back, bend and lift your legs alternately, and try to make your thighs close to the lower abdomen, two groups a day, 10/20 times in each group.

(2) Standing exercise: Lie on your back, bend your legs and put your hands at your sides. Raise your waist and hips as high as possible, chest out, and do it slowly, 3 groups a day, each group 10-20 times.

(3) Postextension exercise: prone position, natural extension of limbs, alternate lifting of both lower limbs, three groups a day, each group 10-20 times.

(4) Swallow posture: prone position, hands on the side, legs straight, lower limbs forcibly lifted backward, and chest out at the same time, 3 groups a day, each group10120 times.

(5) Kicking: Hands akimbo, legs alternately rhythmically, kicking back and forth as much as possible, three groups a day, 10 for each group 120 times.