Filip-Stachnik, Aleksandra http://orcid.org/0000-0003-2008-6158
Krzysztofik, Michal http://orcid.org/0000-0003-2797-8431
Del Coso, Juan http://orcid.org/0000-0002-5785-984X
Wilk, Michal http://orcid.org/0000-0001-5799-6337
Article History
Received: 22 July 2021
Accepted: 8 October 2021
First Online: 19 October 2021
Declarations
:
: The authors declare that they have no conflict of interest.
: The study protocol was approved by the Bioethics Committee for Scientific Research, at the Academy of Physical Education in Katowice, Poland, (3/2019) according to the ethical standards ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. All participants gave their informed consent prior to their inclusion in the study.
: Not applicable.
: The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.