Pulmonary & Critical Care Medicine Department;
Cardiopulmonary Exercise Testing and Rehabilitation Laboratory;
“Evgenidio” Hospital;
National and Kapodistrian University of Athens;
Athens;
Greece;
Pulmonary & Critical Care Medicine Department;
Cardiopulmonary Exercise Testing and Rehabilitation Laboratory;
“Evgenidio” Hospital;
National and Kapodistrian University of Athens;
Athens;
Greece.;
Third Cardiology Department;
National and Kapodistrian University of Athens;
Athens;
Greece;
Third Cardiology Department;
National and Kapodistrian University of Athens;
Athens;
Greece.;
Heart; Failure; NIRS; Tissue; Oxygenation; Exercise; Training;