1. Research Centre for Applied Sport, Physical Activity and Performance, School of Sport & Health Sciences, Faculty of Allied Health and Wellbeing, University of Central Lancashire, Preston PR1 2HE, UK
2. Gastroenterology Department, Lister Hospital, Stevenage SG1 4AB, UK
3. School of Life and Medical Sciences, University of Hertfordshire, Hatfield, AL10 9AB, UK
4. Department of Comparative Biomedical Sciences, Royal Veterinary College, London NW1 0TU, UK