In the digital era, social media platforms play a pivotal role in shaping adolescents' body image perceptions. This study examines how Douyin and WeChat, two contrasting Chinese social media platforms, influence body image among Chinese male adolescents. Employing a platformization perspective, we surveyed 395 male adolescents aged 10 to 24 using the Multidimensional Body-Self Relations Questionnaire-Appearance Scales (MBSRQ-AS) to assess self-evaluation and body satisfaction. Our findings reveal that Douyin usage is significantly correlated with appearance evaluation and body area satisfaction, while WeChat usage shows no significant correlation with any body image dimensions. These results suggest that Douyin's algorithm-driven, video-centric environment intensifies exposure to idealized body standards, impacting users at a cognitive level. This study underscores the importance of considering platform-specific characteristics in understanding social media's impact on body image. It contributes to the broader discourse on how technological design and content modalities mediate psychological outcomes, offering insights for addressing body image concerns among male adolescents in China.

翻译：在数字时代，社交媒体平台对青少年身体意象认知的形成起着关键作用。本研究基于平台化视角，探讨抖音和微信这两类差异化的中国社交媒体平台如何影响中国男性青少年的身体意象。我们采用多维身体-自我关系问卷-外貌分量表（MBSRQ-AS），对395名10至24岁的男性青少年进行调查，以评估其自我评价与身体满意度。研究发现：抖音使用与外貌评价及身体区域满意度呈显著相关，而微信使用与任何身体意象维度均无显著关联。这些结果表明，抖音以算法驱动、视频为中心的环境加剧了用户对理想化身材标准的接触，从而在认知层面产生影响。本研究强调，在理解社交媒体对身体意象的影响时，必须考虑平台特异性特征。该研究为探讨技术设计与内容模态如何中介心理结果提供了更广泛的学术对话，并为应对中国男性青少年的身体意象问题提供了参考依据。