Anderson Cleo, Linardon Jake
School of Psychology, Deakin University, 1 Gheringhap Street, Geelong, Victoria 3220, Australia.
Center for Social and Emotional Development, Deakin University, Burwood, Victoria 3125, Australia.
Body Image. 2024 Dec;51:101805. doi: 10.1016/j.bodyim.2024.101805. Epub 2024 Oct 30.
Muscularity-oriented disordered eating (MODE) is becoming increasingly common among women and is characterized by dietary alterations (e.g., blending meals into liquid form to increase caloric intake) aimed towards gaining lean muscle. In light of the mental health risks associated with these pathological eating behaviors, understanding factors that influence women's engagement in MODE is essential for preventative efforts and for informing etiological models. Body image is a possible factor that may influence MODE in light of evidence of cross-sectional associations and its importance as a key risk factor for thinness-oriented disordered eating. However, research is yet to test for prospective relationships between the various components of body image (i.e., body dissatisfaction, body appreciation) and MODE, which was the aim of this study. Adult women completed the online study measures at baseline (Time 1 [T1]; n = 1760) and three-month follow-up (Time 2 [T2]; n = 1208). A series of univariate regressions revealed that all body image facets (i.e., preoccupation, overvaluation, dissatisfaction, body image appreciation and feeling fat) at T1 significantly predicted MODE at T2. However, multivariable models revealed that only preoccupation and body appreciation uniquely predicted MODE at T2, with a positive relationship observed for preoccupation and a negative one for body appreciation. This is the first study to establish temporal relationships between distinct body image facets and MODE. Pending replication, findings highlight possible targets for addressing MODE in women.
以肌肉发达为导向的饮食失调（MODE）在女性中越来越普遍，其特征是通过饮食改变（例如，将食物混合成液体形式以增加热量摄入）来增加瘦肌肉量。鉴于这些病理性饮食行为所带来的心理健康风险，了解影响女性参与MODE的因素对于预防工作和病因模型的构建至关重要。鉴于横断面关联的证据以及身体形象作为以瘦为导向的饮食失调的关键风险因素的重要性，身体形象可能是影响MODE的一个因素。然而，尚未有研究测试身体形象的各个组成部分（即身体不满意、身体欣赏）与MODE之间的前瞻性关系，本研究旨在探讨这一问题。成年女性在基线（时间1 [T1]；n = 1760）和三个月随访（时间2 [T2]；n = 1208）时完成了在线研究测量。一系列单变量回归显示，T1时所有身体形象方面（即关注、过度重视、不满意、身体形象欣赏和感觉肥胖）均显著预测T2时MODE。然而，多变量模型显示，只有关注和身体欣赏在T2时独特地预测了MODE，其中关注呈正相关，身体欣赏呈负相关。这是第一项建立不同身体形象方面与MODE之间时间关系的研究。在等待重复验证的情况下，研究结果突出了针对女性解决MODE问题的可能目标。
