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KMID : 0608320230300040306
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Physical Therapy Korea
2023 Volume.30 No. 4 p.306 ~ p.313
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Verification of the Reliability and Validity of a Virtual Reality Cognitive Evaluation System Based on Motion Recognition Analysis Evaluation
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Kwon Jeong-Han
Kim Su-Been
Choi Jong-Duk
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Abstract
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Background: As social problems due to the acceleration of the aging era and the increase in the elderly population are becoming serious, virtual reality (VR)-based healthcare is emerging as an approach for preventing and managing health issues.
Objects: This study used validity and reliability analyses to examine the clinical efficacy that is, the clinical value and usability of a novel VR cognitive evaluation system index that we developed.
Methods: We developed a VR cognitive evaluation system based on motion recognition analysis evaluation for individuals aged 65 to 85. After conducting the Korean version of the Mini-Mental State Exam (K-MMSE) cognitive evaluation, the evaluation score was verified through correlation analysis in the VR cognitive evaluation system. To verify the construct validity of the two groups, the Global Deterioration Scale (GDS) grades were categorized into a normal cognitive group (GDS grade 1) and a cognitive impairment group (GDS grades 2 and 3). The data were measured twice to determine the reliability between the two measurements and assess the stability and clinical value of the evaluation system.
Results: Our evaluation system had a high correlation of 0.85 with the widely used K-MMSE cognitive evaluation. The system had strong criterion-related validity at the 95% confidence interval. Compared to the average score of GDS grade 1 in the VR cognitive evaluation system, the average score of GDS grades 2 and 3 in the VR cognitive evaluation system was statistically significantly lower while also having strong construct validity at the 95% confidence interval.
To measure the reliability of the VR cognitive evaluation system, tests?retests were conducted using the intraclass correlation coefficient (3,1), which equaled 0.923 and was statistically significant.
Conclusion: The VR cognitive evaluation system we developed is a valid and reliable clinical tool to distinguish between normal cognitive status and mild cognitive impairment.
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KEYWORD
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Cognitive dysfunction, Risk assessment, Virtual reality
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