I. Scope of use of the walker: help walking, relieve pain; help maintain balance; help support the body when the muscles are weak; help reduce the weight of the affected leg; use of crutches is more strenuous; help restore the normal walking gait. Second, the types and selection of walking device Common walking device is suitable for indoor use, there are also suitable for outdoor; made of lightweight metal to facilitate lifting and there are heavier but with wheels to facilitate the implementation of the. They are often categorized by their construction: no wheels, two wheels and four wheels. These types of walkers provide good stability and support. 1, without wheels: If the affected leg can not bear weight, you can choose the walker without wheels. It has the advantage of firm support and is not easy to slide, but the walking speed is relatively slow. It is suitable for early postoperative training. 2.Two-wheeled： If the affected leg needs to be partially weight-bearing, two-wheeled walker is more suitable. The two feet without wheels can prevent the walker from rolling and sliding away, and the feet with wheels are convenient for pushing. The premise of use is that there must be a certain degree of mobility, able to maintain a normal walking gait. 3, four-wheeled: If you do not need to rely entirely on the walker to maintain gait, you can walk with weight, four-wheeled walker is more suitable. Its advantage lies in the walking efficiency is higher, faster. But walking requirements are high, generally only used to slightly maintain balance, the appropriate force protection. It is suitable for the elderly to go out on foot and is not suitable for early use by postoperative patients. Four-wheeled walker usually with a handbrake, easy to walk on slopes. Selection of handrails for the walker: the principle should be non-slip to ensure that the handrails are soft and comfortable to grip and to prevent wear and tear on the hands. If there is difficulty in gripping the hand, it is advisable to replace the handrail with one that is wide and thick and suitable for the shape of the hand. You can also wrap yourself in towels and other fabrics to increase the thickness and comfort. Third, the walker accessories to choose: some walker above the increase of some accessories, but everything should be grasped, the purpose of the walker is to help walk, can not be used as a handcart. Appropriate to carry a small number of items can be placed, do not place too many things too heavy, otherwise it may affect the smoothness of the walker, easy to fall, but the loss is not worth it. Fourth, the walker adjustment method Before walking, wear good shoes, the body stand straight and steady, eyes in front of; will be placed in front of the walker, people stand in the frame, the left and right sides surrounded by the protection of both hands holding the walker’s handrail. Adjust the height of the walker to the following: when the arms are naturally hanging down, the elbows can be slightly bent, and the handle is exactly at the height of the wrist (as shown in the figure). Handle in the right position, walking can reduce the shoulder and back weight bearing force, reduce strain injury. V. Walker Activity Guide You can choose the following ways of weightbearing on the affected leg: Non-weightbearing (Non-weightbearing, NWB): that is, the affected leg is not subjected to force, that is, to keep your affected leg off the ground; Toe-weightbearing (TWB): you can use the toes to point to the ground to maintain balance; Partial-weightbearing (Partial-weightbearing, Partial-weightbearing): to maintain balance; and Partial-weightbearing, Partial-weightbearing, Partial-weightbearing. Partial-weightbearing (PWB): you can share some of your body weight on the affected leg; Weightbearing astolerated (WBAT): you can bear most or even all of your weight on the affected leg; Full-weightbearing (FWB): you can bear all of your weight as long as it doesn’t hurt. Full-weightbearing (FWB): full weightbearing, as long as it is not painful. Walking: The walker is placed in front of you in a standing frame, surrounded by the left and right sides; move the walker forward with the handrails in both hands about one step. Place the four feet of the walker on the floor to stabilize it; hold the handrail with both hands for support and swing the affected leg forward, shifting the center of gravity forward; stabilize and move the normal leg one step forward, which may fall in front of the affected leg as appropriate; repeat these steps to walk forward (movement: walker->affected leg->normal leg). Note: Keep your back straight as you move the walker forward; do not stand too far back from the walker, but within the center frame; if the walker is not being used because of an injury to the leg or foot, but to maintain balance, you can walk at a normal gait within the protective frame. Sitting/Rising to Stand: Move to the chair to be seated, hold the walker and turn your back to the chair; move the normal leg back so that the back of the leg touches the chair; slide the affected leg forward slightly; hold the armrests of the chair with your hands back and shift your center of gravity backward; slowly bend the normal leg and lower your body into the chair; do this in reverse to rise to stand. Note: Do not sit on an unstable or low chair! Walking up and down steps with a walker (walking up and down stairs with a walker is not recommended in principle): walk to the edge of the steps, as close as possible; stand firmly and move the walker up one step with both hands on the armrests; move the affected leg up one step (without weight-bearing), with the normal leg supporting it; move the normal leg up one step; when going down the steps, move the walker down one step first. Then move the affected leg down and finally the normal leg down. Note: If the affected leg is immobilized in an extended position with a cast or brace, the normal leg can be moved up first. You can use the walker to go up or down one or two steps, but do not go up or down the stairs, as the stairs are narrower and may cause the walker to become unstable and fall. [Safety Tips] Before walking, check whether the foot pads of the walker are aged and worn out, and replace them in time if any problem is found. Check whether the four feet of the walker are at the same height and whether they can be placed smoothly. Do not wear slippers when walking, try to wear shoes with solid protection. Don’t put the walker too far forward when walking, otherwise it is easy to fall down. It is usually one step away from where you would normally walk on your own. Do not lean on the walker when sitting up or getting up, as this may cause the walker to tip over. Avoid walking on slippery surfaces. If this is unavoidable, slow down your pace. Avoid walking on rugs, wires and other objects on the ground that could cause a fall. Remove them from the walking route if they are present.