Table 2. Relative exercise intensity (%VO), respiratory exchange ratio (RER) and absolute oxygen uptake (VO) for the five stages of the incremental treadmill test. Values are mean (±SE) for men (n = 28) and women (n = 18).
Stage 1 Stage 2 Stage 3 Stage 4 Stage 5
% VO2max
Men 33.6 (1.3) 38.4 (1.6) 44.3 (1.7) 50.5 (1.7) 58.7 (1.7)
Women 36.1 (2.0) 42.4 (2.4) 46.8 (2.9) 51.7 (2.9) 57.7 (3.9)
RER
Men .84 (.01) .86 (.01) .89 (.01) .92 (.01) .95 (.00)
Women .85 (.01) .88 (.01) .91 (.01) .93 (.01) .95 (.01)
VO2 (l·min-1)
Men 1.05 (.050) 1.198 (.062) 1.384 (.066) 1.579 (.075) 1.842 (.082)
Women .738 (.048)** .863 (.053)** .951 (.059)** 1.052 (.06)* 1.172 (.077)**
** p < 0.01 from Men.