Adolescent Motivation Toward Physical Exercise: The Role of Sex, Age, Enjoyment, and Anxiety.

Abstract

Physical exercise declines during adolescence due to several factors, such as lack of intrinsic motivation or enjoyment, high physical exercise anxiety, and so on. The objectives of this study were to validate the psychometric structure of the Behavioral Regulation in Exercise Questionnaire-2 to confirm the existence of five levels of motivation toward physical exercise in adolescent population, as well as to analyze the differences in motivation according to sex and age, and the role of age and sex in the relationship between motivation and enjoyment. To do so, 666 students between 10 and 16 years old completed the Behavioral Regulation in Exercise Questionnaire-2 and questionnaires related to enjoyment and physical exercise anxiety. The confirmatory factor analysis of the Behavioral Regulation in Exercise Questionnaire-2 showed a five-factor structure. However, a more parsimonious four-factor structure with a single intrinsic-identified regulation emerged through an exploratory factor analysis. The more self-determined types of motivation were positively associated with enjoyment and negatively with anxiety, the type of physical exercise motivation fluctuated depending on age and sex, and the age moderated the relationship between motivation and enjoyment. This study highlights the importance of fostering specific types of motivation to improve the physical exercise and the relevance of age and sex when developing interventions.