1. Department of Medical Sciences in Sport, Faculty of Sport, University of Ljubljana , Gortanova ulica 22, 1000 Ljubljana , Slovenia
2. Heart Centre Hasselt, Jessa Hospital , Hasselt , Belgium
3. REVAL (Rehabilitation Research Centre)/BIOMED, Hasselt University , 3590 Diepenbeek , Belgium
4. Department of Medical BioSciences, Exercise Physiology Research Group, Radboud University Medical Centre , Nijmegen , The Netherlands