1. Department of Kinesiology, Faculty of Applied Health Sciences, University of Waterloo, Waterloo, Ontario, Canada
2. Department of Physiotherapy, School of Health Sciences, The University of Melbourne, Parkville, Victoria, Australia
3. Lane Fox Clinical Respiratory Physiology Research Unit, Guy’s and St. Thomas’ NHS Foundation Trust, London, United Kingdom
4. Centre for Human and Aerospace Physiological Sciences, King’s College London, London, United Kingdom
5. National Institute of Health Research Biomedical Research Centre, Guy’s and St. Thomas’ NHS Foundation Trust and King’s College London, London, United Kingdom; and
6. Adult Intensive Care Unit, Royal Brompton Hospital, London, United Kingdom