1. Department of Rehabilitative and Preventive Sports Medicine, University Medical Center, University of Freiburg, Hugstetter Straße 55, 79106 Freiburg, Germany
2. Institute of Sport and Sport Science, University of Freiburg, Schwarzwaldstraße 175, 79117 Freiburg, Germany
3. Institute of Human Genetics, University Hospital-Friedrich-Schiller-University Jena, Kollegiengasse 10, 07740 Jena, Germany