1. Department of Physical Education and Sport, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland;
2. Department of Social Science, University of Security in Poznań, Poznań, Poland;
3. Department of Heavy Duty Machines and Research Methodology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland;
4. Department of Tourism, Faculty of Environmental Sciences, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland