Funding for this research was provided by:
Grantová Agentura České Republiky (19-11418Y GAČR)
Article History
Received: 12 August 2019
Accepted: 18 February 2020
First Online: 4 March 2020
Ethics approval and consent to participate
: The current study employed publicly available secondary database. Therefore, the Ethic Committee of the Faculty of Physical Culture, Palacký University Olomouc waived the need for approval.
: Not applicable.
: The authors declare that they have no competing interests.