“…For example, the highest prevalence rates of SCA 2 are found in Cuba, India, England, France, and the USA, whereas SCA 3 is most prevalent in Portugal, Brazil, Germany, Japan, and China. Meanwhile, SCA 6 is particularly prevalent in Japan, Australia, and Germany, SCA 7 is most prevalent in Sweden, Finland, the USA, and China, and SCA 10 cases are concentrated in Mexico and Brazil 2,12,13 . Body balance depends on the integrity of the: vestibular system (VS) (labyrinth, vestibulocochlear nerve, nuclei, pathways and connections to the central nervous system -CNS); somatosensory system (sensory receptors located in tendons), muscles, joints and vision 14 .…”