| Summary: | Summary: Background and aim: This study examined the effect of using virtual reality glasses during high-intensity interval exercise (HIIE) on mood and eating behaviour in men. Methods: Twenty-three healthy young men (age 20.5 ± 1.2 years, BMI 22.1 ± 3.4 kg/m2, VO2peak 34.6 ± 6.5 ml/kg/min) participated in the study. Augmented green environment virtual reality while performing HIIE (VR) compared with HIIE (CON) at 90 %VO2peak were performed for 20 min. Mood was assessed using the Subjective Exercise Experiences Scale (SEES), which consists of three domains including positive well-being, psychological distress, and fatigue. Eating behaviour was assessed and included appetite sensations, food preferences, and food intake. Results: Results showed that there was no significant differences between VR and CON on mood and eating behaviour. The interaction of preference (implicit wanting) for high fat food showed a tendency to increase from pre-post VR compared to CON (P = 0.052). A secondary analysis of tertiles of the three domains of SEES showed no interaction effect of VR vs CON on appetite sensations. However, there was a general group effects of psychological distress on desire to eat (P = 0.049). Conclusions: In conclusion, VR-augmented HIIE did not have a differential effect on mood or eating behaviour compared to HIIE alone, except a potential negative impact on fat preference. Psychological distress may lead to greater desire to eat during VR-augmented HIIE. Keywords: Virtual reality, Mood, Emotion, Eating behavior, Food preferences
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