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Pressure distribution at the seating interface of custom-molded wheelchair seats: effect of various materials

Apatsidis, D.P. and Solomonidis, S.E. and Michael, S.M. (2002) Pressure distribution at the seating interface of custom-molded wheelchair seats: effect of various materials. Archives of Physical Medicine and Rehabilitation, 83 (8). pp. 1151-1156. ISSN 0003-9993

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Abstract

Aims to identify which of 4 materials has the most favorable pressure distribution when used in custom-molded seats (CMSs) to assist clinicians in providing appropriate seating for wheelchair-bound individuals who are prone to develop pressure ulcers. Pressure readings were taken at the seat interface with pneumatic pressure sensors and the Talley Pressure Monitor. Peak pressure readings, mean pressure ratio, and peak pressure ratio for the different materials were compared. Results: Foams, Sunmate in particular, produced lower peak-interface pressures and also showed better pressure distribution than did gels. Foams are the preferred insert material with CMSs when increased tissue breakdown risk is present.