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dc.contributor.authorEngan, Mette
dc.contributor.authorJansrud, Ida
dc.contributor.authorBekken, Marianne
dc.contributor.authorHalvorsen, Thomas
dc.contributor.authorFretheim-Kelly, Zoe Louise
dc.contributor.authorVollsæter, Maria
dc.contributor.authorBovim, Lars Peder Vatshelle
dc.contributor.authorRøksund, Ola Drange
dc.contributor.authorClemm, Hege Havstad
dc.identifier.citationEngan, M., Hammer, I. J., Bekken, M., Halvorsen, T., Fretheim-Kelly, Z. L., Vollsæter, M., . . . Clemm, H. (2021). Reliability of maximum oxygen uptake in cardiopulmonary exercise testing with continuous laryngoscopy. ERJ Open Research, 7(1).en_US
dc.description.abstractAims A cardiopulmonary exercise test (CPET) is the gold standard to evaluate symptom-limiting exercise intolerance, while continuous laryngoscopy performed during exercise (CLE) is required to diagnose exercise-induced laryngeal obstruction. Combining CPET with CLE would save time and resources; however, the CPET data may be distorted by the extra equipment. We therefore aimed to study whether CPET with CLE influences peak oxygen uptake (V′O2peak) and other gas exchange parameters when compared to a regular CPET. Methods Forty healthy athletes without exercise-related breathing problems, 15–35 years of age, performed CPET to peak exercise with and without an added CLE set-up, in randomised order 2–4 days apart, applying an identical computerised treadmill protocol. Results At peak exercise, the mean difference (95% confidence interval) between CPET with and without extra CLE set-up for V′O2peak, respiratory exchange ratio (RER), minute ventilation (V′E) and heart rate (HR) was 0.2 (−0.4 to 0.8) mL·kg−1·min−1, 0.01(−0.007 to 0.027) units, 2.6 (−1.3 to 6.5) L·min−1 and 1.4 (−0.8 to 3.5) beats·min−1, respectively. Agreement (95% limits of agreement) for V′O2peak, RER and V′E was 0.2 (±3.7) mL·kg−1·min−1, 0.01 (±0.10) units and 2.6 (±24.0) L·min−1, respectively. No systematic or proportional bias was found except for the completed distance, which was 49 m (95% CI 16 to 82 m) longer during CPET. Conclusion Parameters of gas exchange, including V′O2peak and RER, obtained from a maximal CPET performed with the extra CLE set-up can be used interchangeably with data obtained from standard CPET, thus preventing unnecessary additional testing.en_US
dc.publisherEuropean Respiratory Societyen_US
dc.rightsNavngivelse-Ikkekommersiell 4.0 Internasjonal*
dc.titleReliability of maximum oxygen uptake in cardiopulmonary exercise testing with continuous laryngoscopyen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.rights.holderCopyright ©ERS 2021.en_US
dc.source.journalEuropean Respiratory Journal Open Research (ERJ Open Research)en_US

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Navngivelse-Ikkekommersiell 4.0 Internasjonal
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