Evaluating the Number of Trials for Stable Virtual Reality-Based Subjective Visual Vertical Measurement in Healthy Adults

Virtual reality-based subjective visual vertical (VR-SVV) has attracted attention as a potential solution to equipment-related limitations of conventional SVV testing. This study investigated the test-retest reliability and adequate trial number for stable assessment of vertical perception using VR-SVV in healthy adults. Participants performed 10 trials in a VR-SVV test and repeated the assessment after one week....

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Clinicians using VR-based Subjective Visual Vertical testing should ensure an adequate number of trials per the study's protocol recommendations before interpreting results; however, adoption awaits broader validation beyond healthy adults.

Establishing the minimum number of trials for stable VR-SVV measurement is a prerequisite for reliable vestibular diagnostics, potentially improving test efficiency and reproducibility in balance clinics.

1. 01VR-based Subjective Visual Vertical (VR-SVV) is a method for assessing vestibular (balance organ) function.
2. 02The study examined how many trials are needed before VR-SVV scores stabilize in healthy adults.
3. 03Test-retest reliability was a primary focus of the investigation.
4. 04Conducted in a healthy adult population — findings may differ in vestibular-disordered patients.
5. 05Results could inform standardized VR-SVV protocols in clinical and research settings.

PMID

42645971

DOI

10.3390/jimaging12080373.

Journal

Journal of Imaging

Publication type

research_article

Evidence level

4

Population

Healthy adults without known vestibular disorders

Intervention

Virtual reality-based Subjective Visual Vertical (VR-SVV) measurement