Low-Intensity Virtual Reality Exercise for Caregivers of People with Mild Cognitive Impairment: A Pilot Study.

Background: Informal caregivers of individuals with mild cognitive impairment (MCI) experience high levels of psychological and physical stress, with limited access to supportive interventions and time constraints. Virtual Reality (VR) technologies may provide brief and accessible opportunities to support caregiver well-being, particularly during waiting periods in clinical settings. This pilot study aimed to explore the potential of a semi-immersive VR intervention to enhance psychological well-being in informal caregivers. Methods: This non-randomized pilot study investigated the effects of a semi-immersive VR-based physical training program (K-HERO^®) on psychological well-being and coping strategies in informal caregivers. Participants were recruited from January to May 2025 at the IRCCS Centro Neurolesi "Bonino-Pulejo" (Messina, Italy), and the intervention was delivered individually in a dedicated room within the rehabilitation facility, while caregivers accompanied their relatives to treatment sessions. Ten caregivers completed six sessions (30-40 min each). The study was conducted in accordance with TREND reporting guidelines. Pre- and post-intervention assessments included the State-Trait Anxiety Inventory (STAI), Perceived Stress Scale (PSS), COPE Inventory, Caregiver Burden Inventory (CBI), and International Physical Activity Questionnaire (IPAQ). Visual Analog Scales and instrumental data from the VR system were used to monitor physical performance and user experience. Non-parametric statistics were applied. Results: Significant reductions were observed in avoidance (p = 0.033) and social support-based (p = 0.023) coping strategies. Differences emerged based on caregiver-patient relationships: parental caregivers showed increased anxiety, while offspring caregivers showed improvements. The intervention was well tolerated, with high usability and no adverse events reported. Conclusions: A short, structured, VR-based intervention delivered during clinical waiting periods may effectively reduce maladaptive coping strategies and support emotional well-being in informal caregivers. These findings highlight the potential of brief digital interventions in real-world care contexts. Larger randomized studies are needed to validate these preliminary findings and personalize interventions to different caregiver profiles.