1. Faculty of Physical Culture, Gdańsk University of Physical Education and Sport, 80-309 Gdańsk, Poland
2. Department of Tourism, Recreation and Ecology, University of Warmia and Mazury, 10-719 Olsztyn, Poland
3. Department of Physiotherapy, Oslo Metropolitan University, 0176 Oslo, Norway
4. Institute of Health, The Angelus Silesius University of Applied Sciences, 58-300 Wałbrzych, Poland