1 Cardiovascular Department, Cardiac Rehabilitation Center of Genoa, Azienda Sanitaria Locale, ASL 3 Genovese, Genoa, Italy.
2 Cardiovascular Unit, Department of Internal Medicine and Medical Specialties (DIMI), University of Genoa, Viale Benedetto XV, 10, 16132 Genoa, Italy.
3 Research group of Physiotherapy and Rehabilitation, Division of Cardiology, Oulu University Hospital, University of Oulu, Finland.
4 Faculty of Sports and Health Sciences, Research group of Physiotherapy and Rehabilitation, University of Jyväskylä, Finland.
5 Cardiology Unit, DICATOV-Cardiothoracic and Vascular Department, IRCCS San Martino Hospital, Genoa, Italy.