| Before exercise | End of exercise | |
| Work W | 30 (20–47.5) | |
| Exercise time min | 10.7 (8.1–16.8) | |
| Borg breathlessness score | 0 (0–0.5) | 8 (5–10) |
| Borg leg fatigue score | 0 (0–0) | 5 (4.25–8.75) |
| V′E L·min−1 | 10 (8.9– 0.7) | 23.7 (18.5–29.4) |
| Inspiratory capacity L | 1.8 (1.5–1.9) | 1.39 (1.0–1.98) |
| Change in inspiratory capacity pre/post exercise mL | 270.0 (100.0–440.0) | |
| V′O2 mL·kg−1··min−1 | 3.5 (3.2–4.3) | 12.8 (9.8–14.1) |
| V′CO2 mL·kg·min−1 | 3.6 (3.0–4.0) | 12.3 (10.0–15.3) |
| Respiratory exchange ratio | 1.0 (0.9–1.1) | 1.0 (0.92–1.06) |
| Oxygen saturation % | 96.2 (95.1–97.0) | 92.3 (90.9–94.5) |
| ti/ttot% | 34.1 (32.2–35.3) | 33.7 (29.2–34.4) |
| Respiratory rate min−1 | 21.0 (14–23.7) | 28.8 (26.9–34.4) |
| VT mL | 476.6 (426.6–607.2) | 789.1 (645.4–1008.0) |
| VT%VCpred % | 15.7 (13.1–16.8) | 23.6 (20.4–33.7) |
| EMGdi%max | 16.9 (14.3–20.6) | 73.3 (60.6–77.4) |
| EMGdi%max/VT%VCpred | 1.05 (0.94–1.31) | 2.86 (2.06–3.83) |
Data are presented as mean (IQR). V′E: minute ventilation; V′O2: oxygen uptake, V′CO2: carbon dioxide production; ti/ttot: ratio of inspiratory time to total breath duration; VT: tidal volume; VT%VCpred: tidal volume expressed as a percentage of predicted vital capacity; EMGdi%max: mean root mean square (RMS) diaphragm electromyogram (EMGdi) activity per breath, expressed as a percentage of maximum RMS EMGdi recorded during maximal inspiratory manoeuvres.