Table 1.
Heart rate (HR), ventilation (VE), respiratory rate (RR), and end-tidal carbon dioxide pressure (PEtCO2) under four conditions
| Condition | HR (beats/min) | VE (l/min) | RR (beats/min) | PEtCO2 (Torr) |
|---|---|---|---|---|
| Normoxic condition | 73.5 (1.4) | 8.9 (0.3) | 14.4 (0.7) | 39.2 (0.5) |
| Mild hypoxic condition | 75.1 (1.6) | 9.0 (0.2) | 15.0 (0.7) | 39.0 (0.5) |
| Moderate hypoxic condition | 78.7 (1.6)* | 9.4 (0.3) | 15.1 (0.7) | 39.1 (0.4) |
| Severe hypoxic condition | 86.5 (1.9)*,†,‡ | 9.8 (0.3) | 13.9 (0.7) | 38.2 (0.5) |
Values are mean (SE). *p < 0.05 vs. normoxia, †p < 0.05 vs. mild hypoxia, ‡p < 0.05 vs. moderate hypoxia