Authors
Szymon Kuliś
Faculty of Physical Education, Józef Piłsudski University of Physical Education, Warsaw, Poland
Edyta Sienkiewicz-Dianzenza
Faculty of Physical Education, Józef Piłsudski University of Physical Education, Warsaw, Poland
Romuald Stupnicki
Halina Konopacka Higher School of Physical Culture and Tourism, Pruszków, Poland