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Three-wheeled walker: As the name suggests, this type has two back wheels and one front wheel, somewhat like a tricycle. It's typically narrower to make it easier to move around in tight spaces ...
A different approach to the walker is the rollator, also called wheeled walker, invented by the Swede Aina Wifalk in 1978. Wifalk had polio. [9] [10] Although originally a brand name, "rollator" has become a genericized trademark for wheeled walkers in many countries, and is also the most common type of walker in several European countries.
A walker or walking frame or Rollator is a tool for disabled people who need additional support to maintain balance or stability while walking. It consists of a frame that is about waist high, approximately twelve inches deep and slightly wider than the user. Walkers are also available in other sizes, such as for children, or for heavy people.
This makes the design more comparable to a modern-day highchair or portable throne for the wealthy than to a modern-day wheelchair for disabled people. [3] In 1655, Stephan Farffler, a 22-year-old paraplegic watchmaker, built the world's first self-propelling chair on a three-wheel chassis using a system of cranks and cogwheels.
He is believed to have been either a paraplegic [1] [2] or an amputee. [3] As such, the chair was consistent with the later designs for self-propelled invalid carriages. The three-wheeled device is also believed to have been a precursor to the modern-day tricycle and bicycle. [4] In England, the forerunner of the invalid carriage was the bath ...
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