This study was conducted as a structured narrative review of random-ized controlled trials (RCTs) investigating virtual reality (VR)-based exer-cise and rehabilitation. PubMed and the Research Information Sharing Service were searched for peer-reviewed studies published between 2015 and 2025. Predefined search terms and eligibility criteria based on the population, intervention, comparison, and outcome framework were applied to identify relevant studies for narrative synthesis. Search terms were organized into three conceptual domains: VR, exercise or rehabil-itation, and biomechanical outcomes. Of 2,138 records initially identified, 19 RCTs were included in the final analysis. Whole-body movement was the most common intervention (11 studies), followed by center-of-mass shifting exercise (three studies). Gait-related outcomes were investigat-ed in 13 of the 19 RCTs, balance and postural control in 12 studies, and direct or instrumented biomechanical outcomes in 10 studies. Across the trials, VR-based exercise was generally associated with improve-ments in gait, balance, postural control, and selected neuromuscular outcomes; however, the direction, magnitude, and statistical significance of these effects varied across studies. Because substantial heteroge-neity was observed in study populations, intervention duration and dose, VR modality, and outcome assessment, pooled effect sizes were not estimated, and definitive conclusions regarding the magnitude of treat-ment effects could not be drawn.
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Abstract INTRODUCTION MATERIALS AND METHODS Study design Research and literature selection criteria Inclusion and exclusion criteria Quality assessment of included studies Research analysis and presentation method Ethical considerations RESULTS Characteristics and classification of the included studies General characteristics of the studies included in the narrative review Characteristics of VR-based exercise interventions in the included studies Classification and frequency of measurement tools and outcome measures Reported effects of VR-based exercise on functional and biomechanical outcomes DISCUSSION CONFLICT OF INTEREST ACKNOWLEDGMENTS REFERENCES
Sang-Kyun Park [ Department of Physical Education, Chungnam National University/Research Institute of Sports and Industry Science, Hanseo University, Seosan, Korea ]
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