Researcher and lead author (IMAGE) University of Göttingen Caption Dr Marcel Reinold, Head of Sport and Health Sociology at the Institute of Sport and Exercise Sciences at Göttingen University Credit Reinold Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.