1 Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany.
2 Division of Performance and Health (Sport Medicine), Institute for Sport and Sport Science, TU Dortmund University, Dortmund, Germany.
3 Department of Hematology and Internal Oncology, Kepler University Linz, Linz, Austria.
4 Max-Planck-Institute for Metabolism Research, Cologne, Germany.
5 Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, University of Cologne, Köln, Germany.