Cylinder before/after | |||
---|---|---|---|
Air/air | Oxygen/air | Air/oxygen | |
Maximum dyspnoea on VAS (mm) | 49.1 (27.3) | 42.8 (23.2) | 40.6 (21.0) |
Δ Maximum dyspnoea from 1st ascent (mm) | 12.6 (19.5) | 18.9 (22.2) | 21.1 (18.7) |
Δ Time of ascent from 1st ascent (s) | 5.6 (5.8) | 6.1 (6.4) | 4.7 (4.9) |
Maximum Δ saturation (%) | 8.2 (3.0) | 4.9 (2.7) | 6.4 (2.2) |
Values are mean (SD).