Effect of Weight Training on Self-Concept: A Profile of those Influenced Most

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Abstract
This study was conducted to determine the effect of weight training on the self-concepts of college males. Another purpose was to identify the types of males, relative to measures of extroversion, neuroticism, body cathexis, somatotype, and muscular strength, who experience the most improvement in self-concept during a lifting program. Subjects of the experimental group (n = 113) trained with weights twice each week for 16 weeks, while controls (n = 127) were educated relative to personal health concepts. The results revealed significant posttest differences in global, internal, and external self-concept between the groups, confirming the hypothesis that regular weight training is positively associated with the improvement of self-concept. Pretest body cathexis, self-concept, and neuroticism scores were significant predictors of global self-concept change from the pretest to the posttest, whereas pretest measures of extroversion, somatotype, and muscular strength were not. Changes in neuroticism, body cathexis, and muscular strength scores were significant predictors of self-concept change, while extroversion change was not, indicating that the positive association between weight training and self-concept enhancement is multivariately determined, and that some types of males experience more improvement of self-concept than others during a weight training regime.

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