Antecedents of eating disorders and muscle dysmorphia in a non-clinical sample
J. Lamanna1, F.G. Grieve2, W. Pitt Derryberry2, M. Hakman3, and A. McClure2
1Virginia Commonwealth University, 2Western Kentucky University, and 3Oklahoma City University, USA

Muscle Dysmorphia (MD) has recently been conceptualized as the male form of Eating Disorders (ED); although, it is not currently classified as an ED. The current study compares etiological models of MD symptomatology and ED symptomatology. It was hypothesized that sociocultural influences on appearance (SIA) would predict body dissatisfaction (BD), and that this relationship would be mediated by self-esteem (SE) and perfectionism (P); that BD would predict negative affect (NA); and that NA would predict MD and ED symptomatology. Two-hundred-forty-seven female and 101 male college students at a midsouth university completed the study. All participants completed measures assessing each of the constructs, and multiple regression analyses were conducted to test each model’s fit. In both models, most predictor paths were significant. These results suggest similarity in symptomatology and etiological models between ED and MD. (Eating Weight Disord. 15: e23-e33, 2010). ©2010, Editrice Kurtis

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