Comparison of pressure distribution qualities in seat cushions.

Support of living tissues by nondestructive external devices is essential in the fields of orthotics and prosthetics . In all areas of medical care for chronic illnesses, considerable effort is devoted to the creation of devices which are nondestructive to living tissue and yet accomplish their function of support when the neuromuscular skeletal system is inadequate because of disease or injury. From the blur of these generalities, sharp focus on a practical problem comes when we examine the design of seat cushions for wheelchairs. The purpose of this paper is to discuss concepts in pressure distribution to living tissues, evaluate currently available seat cushions, and