TABLE 1.
Continuous laryngoscopy exercise (CLE) score, BORG score and cardiopulmonary exercise test (CPET) variables obtained at maximum intensity during the two CLE tests (n=20)
|
CLE test without IB,
mean±sd |
CLE test with IB,
mean±sd |
Mean difference:
without IB – with IB (95% CI) |
|
| CLE score# | 3.98±1.18 | 3.90±1.33 | 0.08 (−0.28–0.43) |
| BORG score ¶ | 7.85±1.93 | 7.50±2.09 | 0.35 (−0.29–0.99) |
| Distance m | 833.4±175.4 | 825.3±185.4 | −8.1 (−43–27.3) |
| Peak V′O2 mL·min−1·kg−1 | 46.1±6.73 | 45.7±7.77 | −0.4 (−1.9–1.1) |
| HR beats·min−1 | 187.1±9.1 | 185.9±7.72 | 1.2 (−1.6–3.9) |
| BF breaths·min−1 | 50.4±7.9 | 49.8±9.8 | 0.6 (−2.4–3.6) |
| V′E L·min−1 | 104.4±24.3 | 100.6±27.4 | 3.8 (−1.6–9.1) |
| Tidal volume L | 2.11±0.49 | 2.05±0.46 | 0.06 (−0.02–0.15) |
| t I /t tot | 49.7±2.05 | 50.1±2.06 | −0.4 (−1.36–0.66) |
All values other than CLE score are obtained at peak intensity and based on a linear model. IB: ipratropium bromide; peak V′O2: peak oxygen consumption; HR: heart rate; BF: breathing frequency; V′E: minute ventilation; tI: inspiratory time of breath (in seconds); ttot: total time of one breath (in seconds). #: CLE score represents the mean CLE score of both moderate and maximum intensity during the test, range 0–12. ¶: BORG score is used for self-assessed symptoms of dyspnoea during the test, range 0–10.