1. Department of Medical Biotechnologies, Division of Cardiology, University of Siena , Siena 53100 , Italy
2. Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome , Latina 041000 , Italy
3. Mediterranea Cardiocentro , Naples 80122 , Italy
4. Division of Paediatric Cardiology, Department of Women’s and Children’s Health, University of Padua , Padua 35128 , Italy
5. Department of Sports Cardiology, Aspetar Orthopaedic and Sports Medicine Hospital , Doha 00000 , Qatar
6. Institute of Sport Exercise and Health, University College London , London W1T 7HA , UK
7. National Institute of Health Research (NIHR) Biomedical Research Centre (Cardiovascular Theme), University Hospitals Bristol NHS Foundation Trust and University of Bristol , Bristol BS2 8ED , UK