摘要：The main index of male attractiveness is muscularity, which is related to strength and agility. A focus on own appearance is considered one of the main features of narcissism, which may be manifested in both adaptive or maladaptive, for example, aggressive forms of behavior. Materials and method: One hundred and twelve men training in martial arts (Muay Thai, kickboxing, and MMA) and 96 men training in kettlebell lifting took part in the study. The study employed the Body Esteem Scale (BES), the Narcissistic Personality Inventory (NPI), and the Buss-Durkee Aggression Questionnaire (AQ). Results: The analysis showed that narcissism levels were higher among men training in martial arts than strength sports, in this case kettlebell lifting. It was revealed that aggression levels on all subscales were higher among men training in kettlebell lifting than martial arts athletes. Conclusion: Noticeable sudden aggressive behaviors in athletes may indicate anabolic steroid use. Particular attention should be paid to such behaviors in athletes training in strength sports.
