[1] IRCCS, Div Cardiol, S Maugeri Fdn, Veruno Sci Inst,Lab Anal Cardioresp Signal, I-28010 Veruno, NO, Italy
[2] Univ Milan, Inst Cardiol, Ctr Cardiol Monzino, Milan, Italy
[3] Guglielmo da Saliceto Hosp, Cardiol Unit, Heart Failure Dept, Piacenza, Italy
[4] Univ Denis Dederot, Hosp Lariboisiere, Dept Cardiol, AP HP, Paris, France
[5] Cardiac Rehabil Ctr, Villeneuve St Denis, France
[6] Med Univ Lodz, Dept Sports Med, Lodz, Poland
[7] Aristotle Univ Thessaloniki, Lab Sports Med, GR-54006 Thessaloniki, Greece
[8] Univ Belgrade, Inst Med Physiol, Fac Med, Belgrade, Serbia
[9] State Hosp Cardiol, Balatonfured, Hungary
[10] Onze Lieve Vrouw Hosp, Ctr Cardiovasc, Aalst, Belgium
[11] Katholieke Univ Leuven, Dept Rehabil Sci Biomed Sci, Leuven, Belgium