1. Research Center in Physical Activity Health and Leisure, Faculty of
Sport, University of Porto, Porto, Portugal
2. Research Institute of Hospital 12 de Octubre
(‘i+12’), Madrid, Spain
3. Universidad Europa de Madrid (Faculty of Sports Sciences), Madrid,
Spain
4. Gastroenterology Department, Centro Hospitalar São
João, Porto, Portugal
5. Department of Surgery, Centro Hospitalar São João,
Porto, Portugal