Funding for this research was provided by:
Evonik Creas Gmb
Deutsche Sporthochschule Köln (DSHS)
Received: 11 January 2021
Accepted: 4 May 2021
First Online: 17 May 2021
: The study approved by the local ethics committee of Deutsche Sporthochschule Köln (09/2020) and was performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. Written informed consent was obtained from all individual participants before participating in this study.
: Not applicable.
: The authors declare that they have no competing interests.