Guest Editors James H. Hull James H. Hull is a Consultant Respiratory Physician at the Royal Brompton Hospital (London, UK) and an Honorary Professor at University College London (London, UK). He qualified from St George’s Hospital Medical School in 2000, with an intercalated degree in exercise physiology. His doctorate and subsequent position as a National Institute for Health and Care Research (NIHR) lecturer, with time spent at UCLA in Los Angeles (CA, USA), provided him with expertise in physiological assessment and, specifically, cardiopulmonary exercise testing. He is currently clinical lead for the unexplained breathlessness service at the Royal Brompton Hospital, providing a one-stop assessment service for national- and international-based referrals of complex breathing issues. In this context and as President of the Association of Respiratory Technology and Physiology (ARTP), James is an advocate for the use of physiological investigations and particularly cardiopulmonary exercise testing, to help characterise reasons for exertional breathing difficulties. Working closely with colleagues in the multidisciplinary team, James developed the now widely used breathing pattern assessment tool (BPAT). He established an upper airway service at the Royal Brompton Hospital and has published work arising from this service, outlining the benefits of assessing upper airway closure during physical activity with/without other forms of provocation, with the continuous laryngoscopy test. James has a specialist clinical and research interest in helping athletic individuals with respiratory issues and in this area he is a specialist advisor to the English Institute of Sport and Team GB, the International Olympic Committee, the British Thoracic Society (BTS) and several professional sporting organisations. Jemma Haines Jemma Haines MBE qualified in 2003 with a First-Class Honours in Speech and Language Sciences from Newcastle University (Newcastle upon Tyne, UK). In her early career she worked as a Copyright ©ERS 2022. Print ISBN: 978-1-84984-151-1. Online ISBN: 978-1-84984-152-8. Print ISSN: 2312-508X. Online ISSN: 2312-5098. viii https://doi.org/10.1183/2312508X.10014322