Lumbar discomfort may be related to improper posture, lumbar muscle strain, lumbar disc herniation and so on. It is recommended to consult a doctor and have a checkup before exercising if there is no special condition. Exercises that can be performed include prone relaxation, prone stretching and plank support. 1. Prone relaxation: lie down on a hard board bed, relax your muscles and rest for two to three minutes. 2. Prone stretching: legs relaxed, arms on both sides of the body to support the upper body to stretch, hold for two seconds and then relax, can be repeated to practice four groups. 3. Plate support: bilateral forearms and toes to support the body, tighten the abdominal and hip muscles, so that the body to maintain a straight line, hold a minute after relaxation, can be repeated to practice three to four groups. Due to muscle strain and other reasons caused by back pain in the crowd through the exercise can relieve the symptoms to a certain extent. But repeated back pain discomfort is recommended to consult a doctor in time, clear reasons, targeted treatment. Avoid blindly exercising on your own and affecting your condition.