Article History
Received: 18 December 2018
Accepted: 13 August 2019
First Online: 4 September 2019
Compliance with ethical guidelines
:
: M. Budig, V. Höltke, and M. Keiner declare that they have no competing interests.
: The tests were conducted from October 2017 to January 2018 in accordance with the guidelines of the Declaration of Helsinki. Approval for this study was obtained from the institutional review board and ethics committee of the University of Health & Sport, Resolution Code: 10/2018.92002800.