Research suggests that bodybuilders are more at risk for unhealthy eating behaviors, muscle dysmorphia symptoms (MD), and exercise addiction. First, the current study aimed to establish a risk criterion for overtraining by comparing the volume and frequency of physical activity between high (HCB) and low (LCB) commitment bodybuilders. Results showed that HCB reported training significantly more often and at a higher intensity than LCB. Second, we verified the predictive validity of the physical activity risk index related to a number of unhealthy physical and psychological training behaviors. Results showed that high exercise frequency and volume were significantly predicted by MD symptoms, exercise addiction behaviors, and satisfaction with weight. Bivariate correlations suggest an indirect predictive effect of disordered eating and dissatisfaction with weight. Collectively, our results suggest that high levels of exercise intensity and volume can gauge the risk that bodybuilders will adopt unhealthy behaviors to achieve body image satisfaction.