Inclusion Criteria:  CA patients (hereditary, degenerative or acquired underlying cause) ambulatory age 18-65 able to walk independently with or without assistive walking device for at least 10m  Exclusion Criteria:  CA patients who require hand held support during walking CA patients with severe visual impairment Expanded Disability Status Scale (EDSS) score >6.5 Refuse to reveal personal information CA patients with other associated neurological conditions that does not result in ataxia features Poor cognition or unable to follow the instructions  Healthy adults: Both genders aged 18 to 65 who are ambulant with or without assistive device for walking.