The current findings demonstrated that quadriplegics and paraplegics were able to sustain high exercise intensities during a wheelchair race lasting approximately 14 min. The paraplegics raced at a HR which was between 91 % and 100% of their peak HR recorded during the ifcremental velocity test, and maintained a V02 which was between 90% and 98% of their peak V02 (Table II). These observations concur with the findings of Asayama et al9 and Crews lO who reported that the V02 and HR during wheelchair distance racing in paraplegics approached their peak values for most of the race duration. The V02 responses during the SR also compare favourably with the treadmill running performance data of Farrell et aI18 who reported that experienced male distance runners maintained. an intensity corresponding to 94% of their V02 max during a 3.2 km treadmill run lasting approximately 11 min.