Scharfen, Hans-Erik http://orcid.org/0000-0002-2297-9761
Memmert, Daniel
Funding for this research was provided by:
Deutsche Sporthochschule Köln (DSHS)
Article History
Received: 3 September 2020
Accepted: 8 December 2020
First Online: 5 January 2021
Compliance with ethical guidelines
:
: H.-E. Scharfen and D. Memmert declare that they have no competing interests.
: For this article no studies with were performed by any of the authors. All studies performed were in accordance with the ethical standards indicated in each case.