Lumbar back muscle functional exercise methods include two: 1, Flying Swallow point of water method: lying on a hard board bed, make the head, double upper limbs, double lower limbs up, the abdomen and bed contact area as small as possible, was a flying swallow shape, hold 10 seconds, repeat 20 times / group, 2 to 3 groups / day. Flying Swallow water point method to exercise the low back muscles 2, five-point support method: lying flat on a hard board bed, with the head, feet and elbows five-point support, so that the hips are as high as possible, hold on for 10 seconds, repeat 20 times / group, 2 to 3 groups / day. Five-point support method to exercise low back muscle 2-1 five-point support method to exercise low back muscle 2-2