The following are several rehabilitation exercise methods that are reliable and easy to implement: 1, “arch bridge” lying on his back, legs flexed, with the feet, elbows and rear head as the fulcrum (five-point support) force the hips up, such as the arch bridge, with the progress of exercise, you can put the arms in front of the chest, only the feet and the rear of the head as the fulcrum for practice. Repeat the exercise 20 to 40 times. Waist forward flexion and backward extension exercise. 2, “flying swallow” lying on the bed, arms on both sides of the body, legs straight, then the head, upper limbs and lower limbs upward, do not make the elbow and knee flexion, always keep straight, such as flying swallow. Repeat the exercise 20 to 40 times. 3, forward bending and backward stretching two feet apart and shoulder-width standing, both hands crossed waist, ready to prepare for the posture. Then do the waist fully forward flexion and back extension four times, exercise to try to relax the waist muscles. The above method is done once before going to bed and once in the morning. (1) Eliminate the causative factors: If the cause of strain injury is work posture, change the conditions and improve the labor posture for the cause. (2) Strengthen exercise: increase targeted physical therapy, such as tai chi, health care gymnastics, etc. (3) Rest and fixation: Patients with chronic strain injury in the lumbosacral region can rest in bed when they have severe pain, and can also use a peri-waist brake, or use a wide belt for protection. When working, the waist can be equipped with a girth to reduce lumbar muscle strain, but the waist must be lifted every day for lumbar back muscle and lumbar muscle exercise. (4) Improve blood circulation: use massage, traction, local heat, ion introduction, ultrashort wave, audio and other methods to relieve muscle spasm and improve blood circulation. Chronic lumbar muscle strain is difficult to treat, but prevention is important.