1. Health and Science Department, World Athletics, 6-8 Quai Antoine 1er, Monaco 98000, Monaco
2. Sports Medicine Laboratory, Aristotle University of Thessaloniki, Thermi, AUTH DPESS, 54124, Thessaloniki, Greece
3. Cardiovascular Performance Program, Massachusetts General Hospital, 55 Fruit Street Boston, MA 02114, USA
4. Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica, 79 - 04100 - Latina (LT), Italy
5. Mediterranea Cardiocentro, Via Orazio, 2, 80122, Napoli (NA), Italy
6. Aritmologia Clinica e Sportiva, IRCCS Gruppo MultiMedica Elettrofisiologia, Via Milanese 300, 20099, Sesto San Giovanni(MI), Italy
7. Department of Medicine, Internal Medicine, Lausanne University Hospital (CHUV), Rue du Bugnon 46, 1011 Lausanne, Switzerland
8. Paracelsus Medical University, Strubergasse 21, 5020 Salzburg, Austria
9. Sports Medicine and Science Institute, CONI, Largo Piero Gabrielli, 1, 00197, Rome, Italy
10. Cardiovascular Clinical Academic Group, St George’s, University of London, Cranmer Terrace, London SW17 0RE, UK
11. Diakonhjemmet Hospital, Diakonveien 12, 0370 Oslo, Norway
12. International Testing Agency—ITA, Av. de Rhodanie 58, 1007 Lausanne, Switzerland