1.Flying swallow style: patients lying on their stomachs and waists, head up, arms force back extension, legs back lift like swallow flying style, for a few seconds or longer, 8-12 times per group, according to the strength. 2, arch bridge: supine position, bilateral elbow flexion, hip and knee flexion, with the head, elbows, feet five points of support, for the movement of the abdomen and waist into the “arch bridge”, for a few seconds or longer, 10-20 times per group, according to the strength. 3, space car: that is, pedal air force, supine position, hands pad in the waist to protect the waist, double lower limbs pedal air to do pedal bike shape. Time gradually increase.