Department of Sport, Faculty of Physical Education, Kazimierz Wielki University in Bydgoszcz, Jana Karola Chodkiewicza 30, 85-064, Bydgoszcz, Poland. malgorzata.zychowska@ukw.edu.pl. Department of Biochemistry, Faculty of Physical Education, Gdansk University of Physical Education and Sport, Kazimierza Gorskiego 1, 80-336, Gdansk, Poland. malgorzata.zychowska@ukw.edu.pl. Department of Biochemistry, Faculty of Physical Education, Gdansk University of Physical Education and Sport, Kazimierza Gorskiego 1, 80-336, Gdansk, Poland. Department of Sport, Faculty of Physical Education, Kazimierz Wielki University in Bydgoszcz, Jana Karola Chodkiewicza 30, 85-064, Bydgoszcz, Poland. Institute for Basic Sciences, Faculty of Physiotherapy, University of Physical Education in Krakow, Jana Pawła II 78, 31-571, Krakow, Poland. Department of Bioenergetics and Exercise Physiology, Faculty of Health Sciences with Institute of Maritime and Tropical Medicine, Medical University of Gdansk, Debinki 1, 80-211, Gdansk, Poland. jant@gumed.edu.pl.