Authors
Marzena Malara
Faculty of Human Biology, Józef Piłsudski University of Physical Education, Warsaw, Poland
Anna Kęska
Faculty of Human Biology, Józef Piłsudski University of Physical Education, Warsaw, Poland
Joanna Tkaczyk
Faculty of Human Biology, Józef Piłsudski University of Physical Education, Warsaw, Poland
Grażyna Lutosławska
Faculty of Human Biology, Józef Piłsudski University of Physical Education, Warsaw, Poland