Table 1.

Oxygen consumption (V̇_O2), respiratory exchange ratio (RER), heart rate (HR), and mean arterial pressure (MAP) before (0 min) and during 120 min of semi-recumbent cycling at 62 ± 2 % of maximal oxygen uptake

	0 min	30 min	60 min	90 min	120 min
V̇O2(l min−1)	0.27 ± 0.06	2.48 ± 0.17 *	2.45 ± 0.15 *	2.50 ± 0.15 *	2.44 ± 0.15 *
RER	0.81 ± 0.07	0.92 ± 0.05 *	0.90 ± 0.05 *	0.88 ± 0.05 *	0.85 ± 0.05 *
HR (beats min−1)	60 ± 1	144 ± 1 *	148 ± 1 *	149 ± 1 *	150 ± 1 *
MAP (mmHg)	96 ± 1	98 ± 1	97 ± 1	98 ± 1	96 ± 1

^*Denotes difference (P < 0.05) from 0 min. Data are expressed as means ± s.e.m. (n = 7).