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An assistive cane is a walking stick used as a crutch or mobility aid. Canes can help redistribute weight from a lower leg that is weak or painful, improve stability by increasing the base of support, and provide tactile information about the ground to improve balance. In the US, ten percent of adults older than 65 years use canes, and 4.6 percent use walkers. In contrast to crutches, canes are generally lighter, but, because they transfer the load through the user's unsupported wrist, are unable to offload equal loads from the legs. Another type of crutch is the walker, a frame held in front of the user and which the user leans on during movement. Walkers are more stable due to their increased area of ground contact, but are larger and less wieldy and, like canes, pass the full load through the user's wrists in most cases. == Parts of medical canes == The basic cane has four parts. These parts vary depending on the design of the cane and the needs of the user. * Handle The handle of a cane is extremely important to the user. Many different styles exist, the most common traditional designs are the Tourist, or crook handle, the Fritz Handle and the Derby Handle. Ergonomically shaped handles have become increasingly common for canes intended for medical use, both increasing the comfort of the grip for the user (particularly important for users with disabilities which also affect their hands or wrists), and better transmitting the load from the user's hand and arm into the shaft. * Collar The collar of a cane may be only a decorative addition made for stylistic reasons, or may form the structural interface between shaft and handle. * Shaft The shaft of the cane transmits the load from the handle to the ferrule and may be constructed from carbon fiber polymer, metal, composites, or traditional wood. * Ferrule The tip of a cane provides traction and added support when the cane is used at an angle. Many kinds of ferrules exist, but most common is a simple, ridged rubber stopper. Users can easily replace a ferrule with one that better suits their individual needs. Modern canes may differ from the traditional fixed structure. For instance, a quad cane has a base attached to the shaft that provides increased stability by having four ferrules, and an adjustable cane may have two shaft segments telescoping one inside the other to allow adjustment for multiple sizes. All cane users who need a walking cane for medical reasons should consult a medical professional before choosing the style that best suits them. It is particularly important that the cane is the proper height for the individual user. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Assistive cane」の詳細全文を読む スポンサード リンク
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