TY - JOUR T1 - The relationship between perceived and performance fatigability in severe fibrotic interstitial lung disease: a prospective, cross-sectional study JF - ERJ Open Research JO - erjor DO - 10.1183/23120541.00726-2022 SP - 00726-2022 AU - Mathieu Marillier AU - Mathieu Gruet AU - Anne-Catherine Bernard AU - Samuel Verges AU - Onofre Moran-Mendoza AU - J. Alberto Neder Y1 - 2023/01/01 UR - http://openres.ersjournals.com/content/early/2023/02/09/23120541.00726-2022.abstract N2 - A sizeable fraction (∼70%) of patients with fibrotic interstitial lung disease (f-ILD) suffer from and seek medical advice due to debilitating symptoms of fatigue [1]. Broadly, fatigue can be defined as an unrelenting feeling of tiredness or lack of energy that is not improved by rest. Fatigue is, however, a complex symptom thus remaining poorly understood and appropriately treated in f-ILD [2].FootnotesThis manuscript has recently been accepted for publication in the ERJ Open Research. It is published here in its accepted form prior to copyediting and typesetting by our production team. After these production processes are complete and the authors have approved the resulting proofs, the article will move to the latest issue of the ERJOR online. Please open or download the PDF to view this article.Conflict of interest: MM was a recipient of a Long-Term Research Fellowship (LTRF 2018) from the European Respiratory Society to support his postdoctoral stay at Queen's University. This ancillary study is a part of a larger project aiming at investigating the physiological effect of O2 supplementation on peripheral muscle fatigability in f-ILD. We thus want to disclose that these data (i.e. peripheral muscle fatigability) have been published elsewhere [8]. However, other data and the rationale/analyses we herein present are original and unpublished. ER -