1. Department of Sports Medicine, Institute of Sports Sciences, Justus-Liebig-University, 35394 Giessen, Germany
2. Institute of Clinical Chemistry and Laboratory Medicine, University of Regensburg, 93053 Regensburg, Germany
3. Universities of Giessen and Marburg Lung Center, German Center for Lung Research, Excellence Cluster Cardio-Pulmonary System, Justus-Liebig-University, 35392 Giessen, Germany
4. Institute of Animal Nutrition and Nutrition Physiology, Justus-Liebig-University, 35392 Giessen, Germany