Authors
Janusz Jaworski
Department of Sport and Kinesiology, University of Physical Education, Kraków, Poland
Grzegorz Lech
Department of Sport and Kinesiology, University of Physical Education, Kraków, Poland
Tadeusz Ambroży
Department of Sport and Kinesiology, University of Physical Education, Kraków, Poland
Michał Żak
Section of Athletics Sports and Recreational Training, University of Physical Education, Kraków, Poland