🤖 AI Summary
This study investigates how #GymTok content on TikTok propagates muscular ideals, reinforces harmful behaviors, and exacerbates body image risks among adolescent males through algorithmic recommendation. Drawing on a large-scale content analysis of 2,210 videos, complemented by multidimensional clinical expert annotations and user engagement modeling, the research systematically uncovers, for the first time, the synergistic mechanism by which muscle-oriented content and platform algorithms jointly amplify body image vulnerabilities. Findings reveal that highly muscular content frequently conflates muscularity with social status and hegemonic masculinity, with posts promoting supplements or anabolic steroids exhibiting the highest potential for harm. Such high-risk content garners disproportionately elevated user engagement, suggesting that algorithmic amplification may intensify social comparison and body objectification among young male users.
📝 Abstract
Body image concerns among boys and young men are increasingly oriented toward muscularity, with social media serving as a central context for communicating and evaluating these ideals. While prior research has focused on the thin-ideal, less is known about how the muscular-ideal is represented and reinforced on visual social media platforms. This study examines (1) dominant content themes, (2) perceived harm to body image, and (3) engagement patterns across #GymTok, a muscularity-oriented fitness subculture on TikTok. We conducted a content analysis of 2,210 #GymTok videos annotated by clinical experts across themes like self-objectification, rigid dieting, excessive exercise, supplement and steroid use, and masculinity. Annotators also rated the perceived harm of videos to the viewers' body image, and depicted bodies were coded according to muscularity level. Perceived harm varied across content themes, with supplement- and steroid-related content rated as most harmful. Engagement was positively associated with both muscularity and perceived harm: videos depicting more muscular bodies and those rated as more harmful received greater views, likes, shares, and comments. Although less prevalent, masculinity-focused content generated the highest engagement. These findings suggest that TikTok may not only expose users to muscular ideals and potentially harmful behaviors, but also algorithmically amplify them. By increasing the visibility of highly muscular and harmful content, recommendation systems may intensify social comparison processes, while objectification elevates the muscular body into a marker of status, masculinity, and social worth. Together, these dynamics may contribute to body image risk among boys and young men.