Lumbar muscle strain is usually caused by prolonged bending or sedentary, standing and other postures, in daily life should try to avoid prolonged bending weight, do not sit for a long time, common stretching methods are kneeling stretch, Swiss ball self-stretching, side lunge bending and so on. 1. Kneeling position stretch: kneeling position abdomen close to the thigh area, so as to play the purpose of stretching, to help relieve the symptoms of lumbar pain. 2. Swiss ball self-stretching: take the left side lying position, back on the edge of the bed, the right leg over-extension hanging outside the edge of the bed, the left leg try to bend close to the chest. The right arm is placed above the head, which can lengthen the right side of the psoas muscle. 3. Side lunge bending: first, you can make the left side of the knee joint bent, set a side lunge posture, then lift the right upper limb, and then slowly turn your head to the left rear. In this process, the right upper limb needs to be kept fully stretched. If you do not get relief after stretching for lumbar muscle strain, it is recommended that you go to the hospital in time for treatment under the guidance of your doctor.