Objectification theory posits that puberty is likely to be a critical stage for experiencing body shame. Past research on experiences during puberty has largely focused on the association between pubertal timing (i.e., the onset of the process of physical maturation and sexual development) and physical and/or psychological health problems among adolescent girls, whereas less research has considered pubertal tempo (i.e., the rate of physical maturation and sexual development during puberty) among girls and boys and its association with body image variables. Using growth curve models, the present study examined whether pubertal tempo and pubertal timing predicted body shame at three equidistant data collection time-points over a two-year period in a sample of 755 early adolescent boys and girls from Spain (377 girls and 378 boys; M_age = 11.49; SD = 0.67 at Time 1). Although participants, particularly boys, showed a decline in body shame in their transition to adolescence, early maturing girls (i.e., body hair, skin changes, breast growth, and menstruation) were especially vulnerable to experiencing body shame. Boys with a slower rate of pubertal change in body hair and facial hair (beard) growth were also vulnerable to experiencing body shame. Findings showed the different role that pubertal timing and tempo appeared to have among boys and girls in predicting body shame and, in line with the gendered deviation hypothesis, suggests important gender differences in experiencing atypical pubertal development for body image.

客体化理论认为，青春期可能是体验身体羞耻的关键阶段。过去关于青春期经历的研究主要集中在青春期时间（即身体成熟和性发育过程的开始）与青春期女孩身体和/或心理健康问题之间的关联，而较少的研究考虑了女孩和男孩的青春期节奏（即青春期的身体成熟和性发育速度）及其与身体形象变量的关联。本研究使用生长曲线模型，检查了来自西班牙的 755 名早期青春期男孩和女孩样本（377 名女孩和 378 名男孩;M_年龄 = 11.49;SD = 0.67 在时间 1）。尽管参与者，尤其是男孩，在过渡到青春期时表现出身体羞耻感下降，但早熟女孩（即体毛、皮肤变化、乳房生长和月经）特别容易经历身体羞耻感。青春期体毛和面部毛发（胡须）生长速度较慢的男孩也容易出现身体羞耻感。研究结果表明，男孩和女孩的青春期时间和节奏在预测身体羞耻感方面似乎具有不同的作用，并且与性别偏差假说一致，表明在经历非典型青春期发育时，身体形象存在重要的性别差异。