Effects of vestibular rehabilitation on postural control.

We evaluated the effects of vestibular rehabilitation on postural instability in 2 patients with unilateral and bilateral reduced vestibular function. Another patient with unilateral vestibular disorder was treated with drugs without vestibular rehabilitation. The outcome of postural control in these 3 patients was measured using an EquiTest. With this apparatus, improvement of postural stability and change of postural strategy were measured under the condition eyes closed and platform movement was dependent on the subject's anterior-posterior sway. The observations suggest that the vestibular rehabilitation had a positive effect not only on postural stability but also on postural strategy.