1.When standing or walking (1) Stand with your head up, chest up, abdomen down, hands in front, weight forward, and change your posture or movement at the right time. (2) Avoid standing for a long time, if necessary, alternate the weight on both legs and bend the knees as much as possible. (3) Avoid wearing high heels, which shorten the Achilles tendon and increase the forward bending of the spine. (4) Bend your knees as much as possible when leaning or bending down, and avoid straightening your lower back. (5) When starting to walk, move your feet first before moving your body. (6) When entering the door, open the door to a width that allows comfortable entry. (1) Let your back be flat or rounded outward, lean your body slightly forward, do not have the curve of your abdomen forward, and do not sit for as long as possible. (2) knees slightly higher than the hips, short people sitting in high chairs preferably with foot pads. (3) The chair is best to have a hard chair back to the lumbar can complete support. (4) Avoid sitting with straight legs, and avoid sitting on a low chair or cushion. (5) Avoid sitting in a chair that rotates or slides. (1) Move the driver’s seat as far forward as possible so that the knees are higher than the hips and it is easier to step on the pedals. (2) Lean on the back of the seat, do not lean forward and make sure the chair is suitable for head rest. (3) Long distance journey, the chair plus a hard seat back, every 30 to 60 minutes to rest and get off the walk. 4, sleep (1) to side sleep is appropriate, sleep on your back with a pillow or chair cushion under your knees. (2) The mattress must be flat and moderately hard and soft. (3) head tilt about fifteen degrees of the pillow is most appropriate, such as the gap below the neck, the towel can be rolled into a cylindrical stuffed in between (or use a health pillow). (4) Do not stretch your hand over your head when you sleep, and gently place it next to you. (5) When you get up, you should bend your knees first, then slowly get up and get out of bed with your arms supporting your upper body. (5) When lifting objects (1) use leg muscles instead of back muscles to exert force, and objects should be as close to the body as possible, things not over the waist, light things not over the shoulder. (2) do not play straight legs or straight back lifting objects, force should be legs and waist. (3) facing the object, do not twist the torso, turning should be legs and torso turn at the same time. (4) Avoid lifting heavy objects from high places. (5) When lifting things, try to share things between the two hands to hold them and keep the balance of the body.