Blood gas levels and oxygen saturation at 2,650 m after 7 h at rest and 5 min exercise at 30 W
| Subjects n | 7 h at rest | 5 min exercise | p-value | |
| Pa,O2 kPa | 35 | 6.9 (5.3–9.6) | 6.3 (4.4–9.2) | <0.001 |
| Pa,CO2 kPa | 35 | 4.5 (2.9–5.9) | 4.5 (3.5–5.9) | 0.45 |
| Sa,O2 % | 36 | 90 (80–98) | 86 (56–93) | <0.001 |
Data are presented as median (range), unless otherwise stated. For technical reasons, one exercise measurement could not be used. Pa,O2: arterial oxygen tension; Pa,CO2: arterial carbon dioxide tension; Sa,O2: arterial oxygen saturation.