1. Athlete Health and Performance Research Centre, Aspetar Orthopaedic and Sports Medicine Hospital, Sports City Street, Doha, Qatar
2. Cardiology Clinical and Academic Group, St George's, University of London, Cranmer Terrace, London, UK
3. Research Institute for Sport and Exercise Science, Liverpool John Moores University, Tom Reilly Building, Liverpool, UK
4. Department of Sports Medicine, Aspetar, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Sports City Street, Doha, Qatar