Table 2.

Gas exchange variables during exercise

Variable
	0.13	0.21	1.00	P
(mmHg)	63.4 ± 1.4	113.1 ± 0.9	669.6 ± 0.6	< 0.001
(mmHg)	42.5 ± 1.1	89.4 ± 2.5	640.4 ± 10.5	< 0.001
(%)	73.8 ± 1.6	95.3 ± 0.4	99.9 ± 0.0	< 0.001
(mmHg)	33.2 ± 1.2	38.0 ± 0.5	41.4 ± 0.6	< 0.001
(mmHg)	21.0 ± 2.3	23.8 ± 2.4	30.0 ± 9.8	NS

Values are means ± S.E.M. , alveolar ; , arterial ; , arterial oxygen saturation; , arterial ; Aa , alveolar–arterial difference.