1. School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland
2. Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
3. Department of Psychology, University of Calgary, Calgary, AL, Canada
4. Alberta Children’s Hospital Research Institute, Calgary, AL, Canada
5. South African Medical Research Council Developmental Pathways for Health Research Unit, Department of Pediatrics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa