折叠的步行者或助步器是一个tool为了禁用或需要额外支持以保持平衡或稳定的老年人walking。在里面United Kingdom，沃克的一个常见术语是Zimmer框架，，，，agenericised trademarkfromZimmer Holdings，此类设备的主要制造商joint replacementparts.
Folding Walker started appearing in the early 1950s. The first US patent was awarded in 1953 to William Cribbes Robb, of Stretford, UK, for a device called “walking aid”, which had been filed with the British patent office in August 1949.[1]1957年5月[2][3]and the first non-wheeled design that was called a “walker” was patented in 1965 by Elmer F. Ries of Cincinnati, Ohio.[4]The first walker to resemble modern walkers was patented in 1970 by Alfred A. Smith of Van Nuys, California.
基本设计由一个轻巧的框架组成，该框架的腰部大约高，比用户深约12英寸（30厘米），略宽。步行者也有其他尺寸（例如小儿(for children) or减肥（对于肥胖者）。现代步行者的身高可调节，应设置为对用户舒适的高度，但将使用户保持略微弯曲的手臂。需要此弯曲以使其在使用步行者时通过手臂进行适当的血液循环。
The front two legs of the Folding Walker may or may not have wheels attached, depending on the strength and abilities of the person using it. It is also common to see施法者车轮或滑行在步行者的后腿上，前面带有轮子；此外毛毡products adapted to glide with the legs such as adhesive feet, along with网球with holes cut into them to place them onto the legs are also utilized on surfaces such as hardwood, epoxy and linoleum flooring common to institutions.
The person walks with the frame surrounding their front and sides and their hands provide additional support by holding on to the top of the sides of the frame. Traditionally, a walker is picked up and placed a short distance ahead of the user. The user then walks to it and repeats the process. With the use of wheels and glides, the user may push the walker ahead as opposed to picking it up. This makes for easier use of the walker, as it does not require the user to use their arms to lift the walker. This is beneficial for those with little arm strength.
A walker is often used by those who are recuperating from leg or back injuries. It is also commonly used by persons having problems with walking or with mild balance problems.
同样相关的是Hemi-Walker，这是一个步行器，大约是传统折叠步行者的一半，该步行器旨在由敏捷性有限或一只手或手臂不存在的人使用。这些步行者比四方甘蔗（一个拐杖，四个触摸地面，而不是一个拐杖）更稳定，但不建议像传统的步行者那样高度适合那些可以使用它的人。
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