The cognitive and motor effects of immersive virtual reality in individuals with neurocognitive disorder: randomized controlled trial protocol

Abstract

Objective  To assess the cognitive and motor effects of an intervention utilizing commercial immersive virtual reality (IVR) games in older adults diagnosed with mild neurocognitive disorder (mild NCD) or mild major neurocognitive disorder and compare these effects with those of a motor-cognitive integrated exercise program.

Methods  This randomized controlled trial will include volunteers aged 60 years and older diagnosed with mild NCD or mild major NCD. Participants will be randomly assigned to two groups, each undergoing two 45-minute sessions weekly for seven weeks. The Virtual Reality Group (VRG) will engage in six IVR games, while the Exercise Group (EG) will perform integrated motor-cognitive exercises. Outcomes will be measured using the mini-BESTest, Dynamic Gait Index, Box and Block Test, 1-minute sit-to-stand test, Grip Strength Test, Neurocognitive Battery, Word Accentuation Test, Patient Health Questionnaire-9, Generalized Anxiety Disorder-7, Montreal Cognitive Assessment, and Functional Activities Questionnaire. Sample size calculation indicates 32 participants (16 per group) to achieve 80 % power with α = 0.05, accounting for 20 % attrition. The trial is registered at the Brazilian Clinical Trials Registry (RBR-2kk9vnh).

Results  It is hypothesized that participants in the VRG will demonstrate greater improvements in cognitive and motor performance compared to the EG.