Authors
Jacek Wąsik
Institute of Physical Education, Tourism and Physiotherapy, Jan Długosz University of Częstochowa, Częstochowa, Poland
Tomasz Góra
Institute of Physical Education, Tourism and Physiotherapy, Jan Długosz University of Częstochowa, Częstochowa, Poland
Dorota Ortenburger
Institute of Physical Education, Tourism and Physiotherapy, Jan Długosz University of Częstochowa, Częstochowa, Poland
Gongbing Shan
Department of Kinesiology, University of Lethbridge, Canada