Now let’s see if we exercise our lumbar spine muscle strength to protect the function of the lumbar spine. 1.Back stretch Raise your arms forward, do not bend your neck. Maintain a flat back for 3 seconds, repeat 10 times. 2, back stretch One side of the leg raised backwards, do not bend the back or neck. Maintain for 3 seconds. Repeat 10 times. 3.Back stretch Tighten the upper abdominal muscles while lifting one leg and the opposite arm. Maintain for 3 seconds, repeat 10 times. 4.Curl your abdomen Support your neck with your hands, put your feet flat on the ground, and lift your head and shoulders from the ground for 3 seconds, repeat 10 times. 5.Curl your abdomen and tilt your hands to support your neck, feet flat on the ground, back flattened head and shoulders lifted off the ground while turning your body to the side. Maintain 3 seconds, repeat 10 times. Okay, that’s all for now. Next time, let’s see if the exercise of cervical spine muscle strength based on the exercise of cervical mobility flexibility.