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A simple technique to measure body sway in normal subjects and patients with dizziness
Published online by Cambridge University Press: 29 June 2007
Abstract
For many years vestibular testing has relied on measurements of the vestibulo-ocular reflex (VOR). More recently quantified assessment of balance, using fixed or moving force platforms and magnetometry have been applied to clinical research. These are objective attempts to quantify the vestibulospinal reflex (VSR). This study evaluates whether SwayWeigh, a simple device which measures lateral body sway, can provide an objective assessment of balance dysfunction. Forty patients with a balance disorder and 31 subjects with normal balance were tested with eyes opened and eyes closed whilst they were standing on a flat surface and then on an air bed. The lateral sway in patients with a balance disorder was compared to that in the normal subjects and highly significant differences (p<0.0001) were observed. The results also confirmed the importance of vision and proprioception in the maintenance of posture.
The Sway Weigh balance platform is a simple and economical device which objectively measures balance dysfunction.
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