1. Center for Medical Physics and Biomedical Engineering Medical University of Vienna Vienna Austria
2. Ludwig‐Boltzmann‐Cluster for Cardiovascular Research Vienna Austria
3. Department of Cardiac Surgery Medical University of Vienna Vienna Austria
4. Department of Cardiac Surgery Katholieke Universiteit Leuven Leuven Belgium
5. PVA Center for Ambulatory Rehabilitation Vienna Vienna Austria
6. Institute of Clinical Physiology National Research Council Pisa Italy