1 Translational Physiology Research Group, University of Westminster, London, United Kingdom.
2 School of Health and Life Sciences, University of the West of Scotland, Glasgow, United Kingdom.
3 Division of Endocrinology and Metabolism, Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA, United States.
4 Department of Sport Science, Medical Section, University of Innsbruck, Innsbruck, Austria.