O Beauchet, MD, MS, is a neurologist, Geriatrics Department, Saint-Etienne University Hospitals, and Department of Rehabilitation and Geriatrics, Geneva University Hospitals, Geneva, Switzerland. He is a doctoral student in the Physiology, Physiopathology of Exercise, and Handicap (PPEH) Laboratory, University J. Monnet Saint-Etienne. He also is a clinical lecturer and specialist in geriatric reh (At 2005-05-01)