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Marcin Starzak
Józef Piłsudski University of Physical Education in Warsaw, Department of Theory and Technology of training, Faculty of Physical Education and Sport, 2 Akademicka Street, 21-500 Biała Podlaska, Poland
Hubert Makaruk
Józef Piłsudski University of Physical Education in Warsaw, Department of Theory and Technology of training, Warsaw Poland
Anna Starzak
Józef Piłsudski University of Physical Education in Warsaw, Faculty of Physical Education and Sport in Biała Podlaska, Poland