Northumbria Research Link Citation: Chynkiamis, Nikolaos, Armstrong, Matthew George, Hume, Emily, Alexiou, Charikleia, Snow, Lauren, Lane, Nicholas D., Hartley, Tom, Bourke, Stephen C. and Vogiatzis, Ioannis (2020) Efect of portable non-invasive ventilation on exercise tolerance in COPD: One size does not ft all. Respiratory Physiology & Neurobiology, 277. p. 103436. ISSN 1569-9048 Published by: Elsevier URL: https://doi.org/10.1016/j.resp.2020.103436 <https://doi.org/10.1016/j.resp.2020.103436> This version was downloaded from Northumbria Research Link: http://nrl.northumbria.ac.uk/id/eprint/42885/ Northumbria University has developed Northumbria Research Link (NRL) to enable users to access the University’s research output. Copyright © and moral rights for items on NRL are retained by the individual author(s) and/or other copyright owners. Single copies of full items can be reproduced, displayed or performed, and given to third parties in any format or medium for personal research or study, educational, or not-for-proft purposes without prior permission or charge, provided the authors, title and full bibliographic details are given, as well as a hyperlink and/or URL to the original metadata page. The content must not be changed in any way. Full items must not be sold commercially in any format or medium without formal permission of the copyright holder. The full policy is available online: http://nrl.northumbria.ac.uk/policies.html This document may difer from the fnal, published version of the research and has been made available online in accordance with publisher policies. To read and/or cite from the published version of the research, please visit the publisher’s website (a subscription may be required.)