The relationship between exercise-related expectancies and exercise behaviour in adolescent athletes.

Background: In recent years, a decline in sports behaviour among adolescents was observed, even though it is generally known that sports contribute to healthy development. According to the social cognitive theory of Bandura, outcome expectancies play an important role in the practice of health behaviour.

Methods: This study analysed the relationship between exercise-related outcome expectancies (EOEs) and exercise behaviour among adolescent athletes, and the differences of EOEs according to age, gender and type of sport played. In an online survey N = 223 (female = 140, male = 83) athletes between the age of 10-19 (M_age = 14.27, SD = 3.21) completed the Exercise-related Outcome Expectancies Questionnaire for Adolescents (EOEQ-A), as well as questions about their sociodemographic background and training behaviour.

Results: A small positive correlation of psychological EOEs with the overall amount of training was discovered while expectancies about negative consequences of sports were associated with lower training efforts. Athletes between 14 and 16 years reported significantly stronger negative EOEs than younger or older participants. Regarding gender, no significant differences were found. Furthermore, a positive correlation between social EOEs and participation in team sports, as well as training in a group was found.

Conclusion: These results could help with adapting exercise-related interventions so that the positive expectancies of the athletes can be fulfilled and exercise behaviour among adolescents can be promoted. Future studies should investigate the relationship between changes in expectancies and changes in exercise behaviour.