After the age of 65, one person out of three falls at least once a year. This proportion rises with age. Seventeen percent of these falls result in significant physical trauma. Another 50% are responsible for psychological sequelae, resulting far too often in institutionalization of these patients. Most of the time, a multiplicity of intricate causes are to blame: intrinsic causes (hypertension, neurological problems, gait disorder, visual impairment, etc.) or extrinsic factors (side effects of drugs, inadequate domestic environment and so on).