Ogihara Hirofumi, Kamo Tomohiko, Umibe Akiko, Kurasawa Yasuyuki, Hayashi Shota, Kuroda Tatsuaki, Tanaka Ryozo, Azami Masato, Kato Takumi, Noda Masao, Tsunoda Reiko, Fushiki Hiroaki
Division of Physical Therapy, Department of Rehabilitation, Faculty of Health Sciences, Nagano University of Health and Medicine, Nagano, Japan.
Otolaryngology, Mejiro University Ear Institute Clinic, Saitama, Japan.
J Vestib Res. 2025 Jun 30:9574271251357176. doi: 10.1177/09574271251357176.
BackgroundSubjective visual vertical (SVV) test is a key functional assessment tool that provides insights into vestibular imbalance. Mobile virtual reality SVV measurement system (MVR-SVV) has the potential to facilitate simple, low-cost, and reliable measurements.ObjectiveThis study aimed to verify the reliability and validity of MVR-SVV by comparing its data with the previously established bucket test (bucket-SVV).MethodsThirty-eight healthy adults completed both bucket-SVV and MVR-SVV tests. The reliability and validity of MVR-SVV were examined using intraclass correlation coefficients (ICCs), Pearson's correlation, Bland-Altman plots (BAP), and minimum detectable change (MDC).ResultsBAP results indicated that the limits of agreement for the SVV angles were 1.61 to -1.24°. No fixed errors were identified ( = 0.13), although a small proportional error was detected (y = -0.59x + 0.157, < 0.001). Pearson's correlation coefficient between bucket-SVV and MVR-SVV was 0.716 ( < 0.001). Within-day reliability was poor for bucket-SVV, with ICC = 0.33-0.38, but moderate for MVR-SVV, with ICC = 0.70-0.71. Between-day reliability was poor for both methods, with ICC = 0.38 for MVR-SVV and ICC = 0.28 for bucket-SVV. MDC was 1.78° for bucket-SVV and 2.67° for MVR-SVV.ConclusionsOur findings suggest that MVR-SVV can be used for assessing SVV. Its portability, availability, and reliability make it a valuable tool for clinicians in clinical settings.
背景
主观视觉垂直（SVV）测试是一种关键的功能评估工具，可深入了解前庭失衡情况。移动虚拟现实SVV测量系统（MVR - SVV）有潜力实现简单、低成本且可靠的测量。
目的
本研究旨在通过将MVR - SVV的数据与先前建立的桶式测试（桶式 - SVV）进行比较，验证其可靠性和有效性。
方法
38名健康成年人完成了桶式 - SVV和MVR - SVV测试。使用组内相关系数（ICC）、Pearson相关性、Bland - Altman图（BAP）和最小可检测变化（MDC）来检验MVR - SVV的可靠性和有效性。
结果
BAP结果表明，SVV角度的一致性界限为1.61°至 - 1.24°。未发现固定误差（ = 0.13），尽管检测到较小的比例误差（y = - 0.59x + 0.157， < 0.001）。桶式 - SVV与MVR - SVV之间的Pearson相关系数为0.716（ < 0.001）。桶式 - SVV的日内可靠性较差，ICC = 0.33 - 0.38，但MVR - SVV的日内可靠性中等，ICC = 0.70 - 0.71。两种方法的日间可靠性均较差，MVR - SVV的ICC = 0.38，桶式 - SVV的ICC = 0.28。桶式 - SVV的MDC为1.78°，MVR - SVV的MDC为2.67°。
结论
我们的研究结果表明，MVR - SVV可用于评估SVV。其便携性、可用性和可靠性使其成为临床环境中临床医生的宝贵工具。
