Measurement 1 | Measurement 2 | |||
Rebreathing | Steady-state | Rebreathing | Steady-state | |
Duration | 6.0 (5.0–7.0) | 5.5 (4.0–7.8) | 5.5 (5.0–6.8) | 6.0 (5.0–7.0) |
Breathing comfort | 5.0 (4.0–6.0) | 6 .0 (5.0–7.0) | 4.5 (4.0–5.8) | 6.0 (4.0–7.0) |
Dyspnoea sensation | 4.0 (4.0–5.8) | 3.5 (2.3–4.8) | 4.0 (4.0–6.0) | 4.0 (2.3–5.0) |
Data are presented as median (interquartile range).