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Manual wheelchair is one of the most commonly used assistive devices to transport a sick, injured, or otherwise disabled person from one place to another and it also has pros and cons. Self- propelled wheelchair is lightweight, can be folded easily for storage or movement into a vehicle. However, the biggest disadvantage of a manual wheelchair is that it requires large physical exertion, especially when user has to maneuver a self- propelled wheelchair on uneven surface.
Po Long Wu,