To better understand the rehabilitation literature, it is necessary to possess a minimal knowledge of the language and tools used in rehabilitation practice and research. The Minimal Record of Disabilities (MRD) for multiple sclerosis (MS) developed under the auspice of the International Federation of Multiple Sclerosis Societies, includes the Expanded Disability Status Scale (EDSS), the Incapacity Status Scale (ISS), and the Environmental Status Scale (ESS). The Timed Up and Go Test (TUG) is a simple and easily reproducible timed test that involves basic components of mobility - standing from a chair, walking 3 meters, turning 180 degrees, walking back to the chair, and returning to a seated position. An increasing array of interventions is available to improve function and quality of life in patients with MS, and many, if not most of them, involve rehabilitation.