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Authors
Bauer, Julian https://orcid.org/0000-0002-4987-242X
Schedler, Simon
Fischer, Stephan
Muehlbauer, Thomas
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Article History
Received: 5 March 2020
Accepted: 20 August 2020
First Online: 27 August 2020
Ethics approval and consent to participate
: Ethical permission was given by the Human Ethics Committee at the University of Duisburg-Essen, Faculty of Educational Sciences. Before the start of the study, participants’ assent and parents’ written informed consent were obtained prior to the start of the study.
: Not applicable.
: The authors declare that they have no competing interests. One of the authors, Professor Thomas Muehlbauer, PhD, is an Associate Editor of the BMC Sports Science, Medicine, and Rehabilitation journal.
