Falls in the elderly: the development of a risk questionnaire and posturographic findings.

In elderly people, owing to a perturbation at several levels, including the motor, sensory and cognitive levels, a condition of dizziness and unsteadiness complicated by frequent falls often appears. In this article, we review the most recent information about clinical and instrumental tools available for preventing mobility-related accidents and report the results of a comparative study of postural control, carried out through tetraataxiometry (by Tetrax, Tel Aviv, Israel), in two samples of elderly women belonging to two different populations: 24 Italian women (11 reporting falls and 13 without falls) having a mean age of 73.1 years, and 37 Israeli women (12 with falls and 25 without falls) having a mean age of 72.5 years. The posturographic findings show that the falling subjects, to maintain postural control, are highly dependent on somatosensory inputs and have a weaker "systeme postural fin" (fine postural system), according to Gagey. They also show that an elderly subpopulation exists that, for unknown reasons, is immune to destabilization and falls.