Funding for this research was provided by:
Grantová Agentura České Republiky (18-16423S)
Received: 11 October 2019
Accepted: 5 November 2019
First Online: 14 November 2019
Ethics approval and consent to participate
: The Institutional Research Ethics Committee of the Faculty of Physical Culture, Palacký University Olomouc (No. 20/2017), has approved the study protocol. All participants were informed about the details of the study. They agree to participate in study and sign informed consent.
: Not applicable.
: The authors declare they have no competing interests.