Abstract
Preadolescents enrolled in either a 3 times per week, 12-week exercise program (n = 50) or a no-exercise program control condition (n = 42) during their after-school care, were assessed for indication of whether exercise-induced changes in self-concept and overall negative mood were negatively correlated. Significant improvements in ratings of self-concept and of negative mood were found over 12 wk. Inverse relationships were found between changes in physical self-concept with overall self-concept and negative mood (r = –.40 and –.36, respectively). Results supported the positive effect of exercise on the assessed psychological factors in preadolescents. Cognitive behavioral theory-based explanations of the findings were discussed.
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