Authors
Marcin Śliwa
Józef Piłsudski University of Physical Education in Warsaw, Faculty of Physical Education and Health in Biała Podlaska, Department of Sports Sciences, Poland
Jerzy Sadowski
Józef Piłsudski University of Physical Education in Warsaw, Faculty of Physical Education and Health in Biała Podlaska, Department of Sports Sciences, Poland
Mariusz Buszta
Department of Humanities and Social Sciences, Poland