Flexing Muscles in Virtual Reality: Effects of Avatars’ Muscular Appearance on Physical Performance
summary
Study with 30 participants measures isometric hold for 60 seconds with 1 kg per hand at 90° shoulder abduction, Borg RPE, dynamometer grip strength, and JND using 200 g vs 205–225 g comparisons. Results show embodying a muscular avatar lowers perceived exertion and yields higher grip strength for male participants; JNDs are smaller (greater sensitivity) in muscular avatars. Effects vary by avatar gender and body image and are preliminary given sample and exploratory JND analysis.
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