Ventilation, respiratory muscle activity and breathlessness at exhaustion during cycle and treadmill exercises
| Vz (L'min) | EMG41index (a.u.) | EMGF8index (a.u.) | EMG41index Nz (a.u.) | EMGF8index Nc (a.u.) | Borg | |
| Cycle | 23.7 (13.5–43.6) | 1213.0 (866.5–1845.0) | 437.3 (123.4–398.9) | 57.0 (25.7–118.9) | 16.0 (4.1–64.0) | 7 (3–10) |
| Tread-mill | 20.6 (13.1–35,7) | 1365.0 (762.4–1884.0) | 600.5 (115.5–1414) | 67.5 (23.9–104.2) | 27.9 (4.6–98.0) | 7.5 (4–10) |
| p | 0.05 | 0.97 | 0.01 | 0.27 | 0.002 | 0.44 |
Data are presented as median (range) and analysed using Wileoxon signed-rank tests.
VF, minute ventilation; EMG, electromyogram; EMG41, diaphragm electromyogram; EMGF8, parasternal intercostal muscle EMG; Borg, Borg breathlessness.