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 A wheelchair is a chair with wheels, used when walking is difficult or impossible due to illness, injury, problems terkait to old age, or disability. Slot Mesin Online   Wheelchairs come in a wide variety of formats to meet the specific needs of their users. They may include specialized seating adaptions, individualized controls, and may be specific to particular activities, as seen with sports wheelchairs and beach wheelchairs. The most widely recognized distinction is between motorized wheelchairs, where propulsion is provided by batteries and electric motors, and manual wheelchairs, where the propulsive force is provided either by the wheelchair pemakai or occupant pushing the wheelchair by hand ("self-propelled "), by an attendant pushing from the rear using the handle(s), or by an attendant pushing from the side use a handle attachment. Bola Online Indonesia The earliest records of wheeled furnitur are an inscription found on a stone slate in China and a child's bed