Impact of Customized Content in 3D Virtual Reality Motionless Imagery Exercise through Avatar on Emotional Well-Being, Cognition, and Physiological Response

Abstract

People in situations where physical activity is difficult face limitations in participating in exercise to maintain health. Participation in exercise is especially difficult when social non-face-to-face situations such as infectious diseases occur. This causes various social problems. Background: The study developed a 3D virtual reality (VR) Motionless Imagery Exercise through Avatar (MIEA), provided customized content such as companion avatars, and aimed to verify its effects. Methods: This study was conducted using a randomized block design experiment. The participants were 40 healthy adults (20 experiment and 20 control group) aged between 19 and 49 years. Both groups engaged in interventions three times per week for 20 min over six weeks. Data obtained from measurements of emotional well-being, cognition, and physiological responses before and after the experiment were analyzed. Results: The experimental group showed significant improvements in emotional well-being compared to the control group, particularly in trait anxiety, resilience, stress, and positive affect. The similar physiological responses observed in the experimental group resembled exercise-induced responses. Verbal memory and working memory in the experimental group improved more in the experimental group than the control group. Conclusions: The results showed the effectiveness of a 3D VR MIEA, indicating its positive impact on exercise outcomes. Furthermore, the provision of customized content including companion avatars was validated to enhance emotional well-being. This suggests that incorporating content-driven companion avatars in developing virtual reality exercise programs can evoke emotional effects.