1. Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education in Katowice, Mikolowska Street 72a, 40-065 Katowice, Poland
2. Institute of Healthy Living, The Jerzy Kukuczka Academy of Physical Education, Mikolowska Street 72, 40-065 Katowice, Poland
3. Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, 40-055 Katowice, Poland