1 Department of Medical Sciences in Sport, Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia (Dr Kambič); Heart Centre Hasselt, Jessa Hospital, Hasselt, Belgium (Dr Hansen); BIOMED (Biomedical Research Institute) and REVAL (Rehabilitation Research Centre) (REVAL/BIOMED), Hasselt University, Diepenbeek, Belgium (Dr Hansen); and Clinical Exercise Physiology Program, Human Performance Laboratory, Ball State University, Muncie, Indiana (Dr Harber).