Agata Nowak¹,  Zbigniew Nowak¹, Thomas Küpper², Tomasz Gabryś^3,4, Urszula Szmatlan- Gabryś⁵

¹Department of Physiotherapy , Jerzy Kukuczka’s Academy of Physical Education in Katowice, Poland

²RTWH Aachen Technical University, Aachen, Germany

³Institute of Physical Education, Tourism and Physiotherapy Jan Dlugosz University in Czestochowa, Poland

⁴Department of Physical Education and Sport, University of West Bohemia, Pilsen, Czech Republic

⁵Department od Physiotherapy, Faculty of Rehabilitation, University of Physical Education, Cracow, Poland