Validity and repeatability of cardiopulmonary exercise testing in interstitial lung disease
Abstract Background Cardiopulmonary exercise testing (CPET), and its primary outcome of peak oxygen uptake (VO2peak), are acknowledged as biomarkers in the diagnostic and prognostic management of interstitial lung disease (ILD).However, the validity and repeatability of CPET in those with ILD has yet to be fully characterised, and this study fills