Table 2.

Peak exercise values on Day 1

	Men (n = 8)	Women (n = 10)
(ml kg−1 min−1)	69.5 ± 7.8	59.8 ± 4.8*
(l min−1)	5.3 ± 0.7	3.8 ± 0.4*
(l min−1)	5.7 ± 0.6	4.1 ± 0.5*
RER	1.08 ± 0.07	1.07 ± 0.04
Fb (breaths min−1)	59 ± 9	58 ± 5
VT (l)	3.1 ± 0.4	2.3 ± 0.3*
(l min−1)	161 ± 25	120 ± 18*
	30.6 ± 4.9	31.6 ± 3.0
/	28.2 ± 3.0	29.6 ± 3.0
/BSA (%)	81 ± 9	69 ± 9*
Ti (s)	0.47 ± 0.04	0.47 ± 0.07
Te (s)	0.51 ± 0.07	0.52 ± 0.11
Ttot (s)	0.98 ± 0.09	0.99 ± 0.17
Ti/Ttot	0.48 ± 0.03	0.48 ± 0.03
Te/Ttot	0.52 ± 0.03	0.52 ± 0.03
HR (beats min−1)	189 ± 8	190 ± 11
Exercise duration (s)	1273 ± 189	1229 ± 163
Peak power (W)	376 ± 30	265 ± 26*

^*Significantly different from men (P < 0.05). Values are means ± s.d. Definitions of abbreviations: , oxygen consumption; , carbon dioxide production; RER, respiratory exchange ratio; F_b, breathing frequency; V_T, tidal volume; , minute ventilation; , ventilatory equivalent for oxygen; /, ventilatory equivalent for carbon dioxide; /BSA, minute ventilation/body surface area; HR, heart rate; T_i, inspiratory time; T_e, expiratory time; T_tot, total time (T_i+T_e).