TABLE 3.
Reliability and reproducibility of the ergospirometry data obtained for the 40 participants performing cardiopulmonary exercise test with and without CLE test set-up
| Parameter | Agreement | Lower LoA | Upper LoA | ICC | (95% CI) | WS-sd | CoV % |
| V′O2peak mL·min−1 | 11.4 | −263 | 286 | 0.988 | (0.977, 0.993) | 98 | 2.6 |
| V′O2peak mL·kg−1·min−1 | 0.2 | −3.5 | 4.0 | 0.957 | (0.920, 0.977) | 1.3 | 2.5 |
| V′CO2peak mL·min−1 | 53.1 | −431 | 537 | 0.970 | (0.943, 0.984) | 176 | 3.8 |
| VT L | 0.0 | −0.47 | 0.46 | 0.933 | (0.876, 0.964) | 0.16 | 6.3 |
| V′E L·min−1 | 2.6 | −21.4 | 26.5 | 0.933 | (0.877, 0.964) | 8.7 | 6.2 |
| HR beats·min−1 | 1.4 | −11.6 | 14.3 | 0.720 | (0.532, 0.841) | 4.7 | 2.5 |
| RR breaths·min−1 | −2.5 | −19.9 | 15.0 | 0.614 | (0.375, 0.777) | 6.0 | 11.1 |
| RER units | 0.01 | −0.09 | 0.11 | 0.502 | (0.233, 0.700) | 0.04 | 3.1 |
CLE: continuous laryngoscopy during exercise; LoA: limit of agreement; ICC: intraclass correlation coefficient; WS-sd: within-subject sd; CoV: coefficient of variation; V′O2peak: oxygen consumption at peak exercise; V′CO2peak: carbon dioxide production at peak exercise; VT: tidal volume; V′E: minute ventilation; HR: heart rate; RR: respiratory rate; RER: respiratory exchange rate.