Background: Falls are a major problem in the elderly population. Assessment of postural stability in elderly on different surfaces is a challenge for clinicians and practitioners.
Aims: Our main objective was to assess and compare healthy elderly reaction time on an unstable and a stable surface support of the limits of stability (LOS).
Materials and Methods: Ten healthy elderly performed the limits of stability of the Computerized Dynamic Posturography under 2 conditions of surface support; condition 1: with a foam pad (Neurocom foam pad) to simulate an unstable surface and condition 2: without foam pad to mean a stable surface. Subjects had to move their center of pressure on four directions: forward, right, back, and left for each condition.
Results: The results indicated that there is a significant difference (p < 0.05) in reaction time of the limits of stability only in forward direction between both surface support conditions.
Conclusions: Training elderly balance on an unstable surface using a foam pad seems to be effective to improve reaction time while preparing elderly falls protection strategy.
Reaction time; Healthy elderly; Surface stability; Limits of stability.