Seven quadriplegics (CS-8 lesions) and
six paraplegics (TS-L4 lesions) completed (1) an incremental wheelchair velocity test,
(2) a SR (1.6 km for quadriplegics and 3.2 km for paraplegics), and (3) an indoor TR of the same distance. The subjects performed the incremental velocity test and SR in their personal wheelchairs mounted on a roller system interfaced with customized software programmed to
provide velocity and distance feedback. Physiological responses were monitored
using an automated metabolic cart and electrocardiogram.