Saša Bubanj¹, Ratko Stanković¹, Radoslav Bubanj¹, Ivana Bojić¹ Boris Đinđić² and Aleksandar Dimić³
¹ Faculty of sport and physical education, University of Niš, Serbia
² Faculty of medicine, University of Niš, Serbia
³ Institute for prevention, treatment and rehabilitation, “Niška Banja”, Niška Banja, Serbia