Table 3.

Femoral blood analysis variables during the three 5 min exercise tests

Variable	Hypoxia	Normoxia	Hyperoxia
(mmHg)	51.3 ± 9.5*	89.2 ± 2.8	645.2 ± 11.2*
(mmHg)	30.0 ± 0.5*	35.1 ± 0.9	37.9 ± 1.1*
pHa	7.34 ± 0.1*	7.30 ± 0.1	7.26 ± 0.1*
(%)	71.8 ± 2.3*	95.0 ± 0.5	99.8 ± 0.1*
(ml l−1)	150.9 ± 4.3*	196.6 ± 4.4	219.5 ± 6.2*
(mmHg)	9.4 ± 1.1*	15.2 ± 1.6	19.5 ± 2.1*
(mmHg)	56.4 ± 2.7*	68.9 ± 2.7	78.7 ± 2.7*
pHv	7.20 ± 0.1	7.15 ± 0.1	7.10 ± 0.1
(%)	6.2 ± 0.7*	11.4 ± 1.7	14.9 ± 2.3*
(ml l−1)	15.3 ± 1.8*	26.1 ± 4.1	34.2 ± 6.1*
Arterial lactate (mmol l−1)	11.5 ± 2.6	9.7 ± 1.6	10.6 ± 2.2

Values are means ±s.e.m. , arterial tension of O₂; , arterial tension of CO₂; pH_a, arterial pH; , arterial oxygen saturation; , arterial O₂ content; , venous tension of O₂; , venous tension of CO₂; pH_v, venous pH; , venous oxygen saturation; , venous O₂ content. Asterisks denote significant differences (P < 0.05) compared with normoxia.