1Research Unit for Exercise Epidemiology, Department of Sports Science and Clinical Biomechanics, Centre of Research in Childhood Health, University of Southern Denmark, Odense, Denmark
2Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, UK
3University of Cambridge, Cambridge, UK
4Sports Medicine Clinic, The Orthopedic Department, Hospital of Lillebaelt Middelfart, Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
5Department of Teacher Education and Sport, Western Norwegian University of Applied Sciences, Sogndal, Norway
6Department of Movement and Sports Sciences, Ghent University, 9000 Ghent, Belgium
7Centre for Research and Action in Public Health, University of Canberra, Canberra, ACT Australia
8Department of Health and Human Physiology, University of Iowa, Iowa City, IA USA
9Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
10Bristol Medical School, University of Bristol, Bristol, UK
11Centre for Exercise, Nutrition and Health Sciences, School for Policy Studies, University of Bristol, Bristol, UK
12Service of Endocrinology, Diabetes and Metabolism and Division of Pediatric Endocrinology, Diabetes and Obesity, University Hospital Lausanne, Lausanne, Switzerland
13University of Strathclyde, Physical Activity for Health Group, School of Psychological Sciences and Health, Glasgow, Scotland, UK
14Exercise and Health Laboratory, Faculty of Human Kinetics, Universidade de Lisboa, Lisbon, Portugal
15Centre for Diet and Activity Research (CEDAR), University of Cambridge, Cambridge, UK
16Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway