Abstract
<p>Objective(s): Vestibular rehabilitation therapy (VRT) is an efficient treatment for dizziness and vertigo, but its accessibility remains limited. This study evaluates the feasibility and performance of a machine vision-based automated alternative-the Automated Vestibular Rehabilitation System (AVRS)-as a more accessible approach to delivering VRT.</p><p>Methods: Forty age- and sex-matched adults without balance disorders or recent head injury completed one standard VRT exercise, X1, in seated and standing positions using the AVRS, which tracked real-time head and eye movements. Gain, the ratio of eye to head velocity near the neutral head position, was calculated using median values and interquartile ranges. Test-retest reliability (TRTR) was assessed in a subset of 20 participants using intraclass correlation coefficients (ICCs) with 95% confidence intervals.</p><p>Results: All participants successfully completed the AVRS-guided vestibular exercises. The n = 20 person test-retest reliability subset returned after 27 +/- 9 days. Mean VOR gain approximated the expected physiologic norms (similar to-1.0) across sessions irrespective of frequency (Session 1: -0.98 +/- 0.04; Session 2: -0.99 +/- 0.03). Overall reliability between sessions was moderate (ICC (3, 1): 0.59 [95% CI: 0.37-0.75], p < 0.001).</p><p>Conclusion: The AVRS demonstrated moderate reliability and accurate VOR gain measurement in healthy adults, supporting its potential as a scalable, accessible tool for VRT delivery, with normative data to guide therapeutic progression in clinical populations.Level of Evidence 4.</p>