Gait Assessment Rating Scale (GARS), a standardized test or inventory of 16 abnormal aspects of gait that may be observed by an examiner as a patient walks at a self-selected pace. The abnormalities are commonly seen in elderly people who fall. Each aspect is graded on a scale of 0-1-2-3, with lower numbers indicating less abnormality. Often used as a screening tool to identify patients who are at risk for falls.