1. Sport Injury Research Prevention Centre, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada;
2. Department of Kinesiology, University of British Columbia, Vancouver, BC, Canada;
3. Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada;
4. Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada;
5. Glen Sather Sports Medicine Clinic, Department of Family Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada;
6. O'Brien Institute for Public Health, University of Calgary, Calgary, AB, Canada;
7. Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada;
8. Sport Medicine Centre, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada; and
9. Evidence Sport and Spine, Calgary, AB, Canada.