1 Institute of Interdisciplinary Exercise Science and Sports Medicine, MSH Medical School Hamburg, Am Kaiserkai 1, 20457, Hamburg, Germany. karsten.hollander@medicalschool-hamburg.de.
2 Institute of Occupational, Social and Environmental Medicine, Goethe University Frankfurt, Frankfurt, Germany.
3 Department of Human Movement Science and Exercise Physiology, Institute of Sport Science, Friedrich Schiller University Jena, Jena, Germany.