Longitudinal relationships between negative attitudes towards obesity and muscle dysmorphia symptoms

IF 2.6 3区医学 Q2 PSYCHIATRY Eating behaviors Pub Date : 2025-01-01 DOI:10.1016/j.eatbeh.2025.101948

Rylee Lusich, William Grunewald, April Smith

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Abstract

Background

Weight-based discrimination is a major public health problem. The pervasiveness of weight stigma can lead to weight-bias internalization and in turn to deleterious behaviors to change one's appearance. Weight bias internalization is linked to eating disorder behaviors, but whether this relation holds for muscle-building behaviors is unclear. Thus, the current study tested longitudinal relationships between Negative Attitudes Towards Obesity (NATO) and drive for muscularity (DFM), as well as muscle dysmorphia (MD) symptoms.

Method

Undergraduate participants (n = 1175; 79.9 % cisgender women; 87.6 % white; Mage = 19.14) completed the Eating Pathology Symptom Inventory-NATO subscale, Drive for Muscularity Scale, and the Muscle Appearance Satisfaction Scale. Multiple linear regressions, adjusting for gender, examined the longitudinal relationships between NATO, DFM, and MD symptoms.

Results

There were positive longitudinal associations between NATO and DFM, as well as negative longitudinal associations between NATO and muscularity satisfaction.

Conclusion

Greater weight stigmatizing attitudes longitudinally predicted the desire to increase muscularity and engage in muscle-building behaviors. Clinical interventions may target weight stigmatizing attitudes to reduce later symptoms of MD or DFM.

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对肥胖的消极态度与肌肉畸形症状的纵向关系。

背景：体重歧视是一个重大的公共卫生问题。普遍存在的体重耻辱感会导致体重偏见内化，进而导致改变外表的有害行为。体重偏见内化与饮食失调行为有关，但这种关系是否适用于增肌行为尚不清楚。因此，目前的研究测试了对肥胖的消极态度（NATO）和对肌肉力量的追求（DFM）以及肌肉畸形（MD）症状之间的纵向关系。方法：本科生参与者(n = 1175；79.9%为顺性别女性；白人占87.6%；Mage = 19.14)完成进食病理症状量表- nato子量表、肌肉动力量表和肌肉外观满意度量表。经性别调整后的多元线性回归检验了NATO、DFM和MD症状之间的纵向关系。结果：北约与DFM之间存在正纵向关联，北约与肌肉力量满意度之间存在负纵向关联。结论：更大的体重污名化态度纵向预测了增加肌肉和从事肌肉建设行为的愿望。临床干预可以针对体重污名化的态度，以减少MD或DFM的后期症状。

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来源期刊

Eating behaviors Multiple-

CiteScore

4.20

自引率

3.60%

发文量

审稿时长

60 days

期刊介绍： Eating Behaviors is an international peer-reviewed scientific journal publishing human research on the etiology, prevention, and treatment of obesity, binge eating, and eating disorders in adults and children. Studies related to the promotion of healthy eating patterns to treat or prevent medical conditions (e.g., hypertension, diabetes mellitus, cancer) are also acceptable. Two types of manuscripts are encouraged: (1) Descriptive studies establishing functional relationships between eating behaviors and social, cognitive, environmental, attitudinal, emotional or biochemical factors; (2) Clinical outcome research evaluating the efficacy of prevention or treatment protocols.