Table 1.

Power output and physiological responses during exercise

	40%GI	40%G	70%GI	70%G
Power output (W)	103.5 ± 6.0	103.5 ± 6.1	187.6 ± 8.5*	187.6 ± 8.5*
Heart rate (bpm)	117.1 + 5.8	113.6 ± 5.4	151.2 ± 4.6*	147.6 ± 6.0*
RPE	10.6 ± 0.4	10.7 ± 0.6	14.4 ± 0.3*	14.2 ± 0.6*
% VO2 peak	42.0 ± 1.0	40.7 ± 1.0	66.1 ± 2.5*	69.1 ± 5.3*

*Significantly different from 40% trials (p < 0.01)