Longitudinal relationships between negative attitudes towards obesity and muscle dysmorphia symptoms

IF 2.4 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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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.