“…Since the 1970s, several pressure-mapping systems have been employed in clinical research studies to compare commonly prescribed pressure relieving wheelchair cushions (Rosenthal et al, 1996;Fisher & Patterson, 1983;Garber, 1985b;Garber et al, 1978). These evaluation systems, however, were impractical to mass-produce, cumbersome to operate, and not readily available for use in the clinic.…”