Prone carts are used for mobility by individuals with spinal cord injury who cannot use a wheelchair due to the risk of aggravating existing pressure ulcers. A prone cart is a flat/horizontal cart with a fixed height, propelled by the user while laying in a prone position. Patients reported that prolonged use of a prone cart resulted in chronic neck, shoulder and back pain. Additionally the existing prone carts lack user accessible angle adjustability, chest support area, as well as a storage, eating or working area. An interdisciplinary research team collaborated to address these concerns. Three prone carts were evaluated: E&J, Gendron, and a newly developed prototype, MIAD/PVA. Questionnaires were administered to caregivers and patients regarding usage and effectiveness of the prone carts as well as the features of an ideal cart. This data led to the design and refinement of a prototype prone cart which was tested on 20 patients and 19 caregivers at the SCI Centers of the Milwaukee and Tampa VAMC's from 1994-1995. The new prone cart enables the user to lie at an angle rather than laying flat. This position has been found to relieve back and neck pressure. With an hydraulic system, the the user can adjust both the front and rear angles of the cart to achieve desired comfort. In addition, a front deck provides an eating and working area. This study resulted in research-based information and criteria for the design of new prone carts. Findings of this pilot study will be incorporated in a development merit review proposal to the VA Rehabilitation Research & Development service for the design of a new manual and motorized prone cart. The researchers are collaborating with Ortho-Kinetics Inc. to promote ease in manufacturing.
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