摘要:Introduction Physical activity is one of the key for healthy lifestyle. Many motivational theories tried to understand reasons behind adolescent sport participation;therefore,the purpose of this study was to investigate,among adolescent athletes,sport commitment cluster profiles and to examine profile differences in health and psychological variables. Methods Participants were 526 adolescent athletes (M=16.41;SD=1.16) who completed questionnaires of sport commitment,well-being,future orientation,health attitude,and aspirations. Sport Commitment profiles were created by cluster analysis using commitment determinants and MANOVA and ANOVA were used for further analysis. Results The first cluster,labelled as obligatory athletes,showed a profile of obligation dominating sport participation,whereas commitment was not prominent. The second cluster,noncommitted athletes,was characterized by the perception of sport as a negative experience. The third cluster of athletes was labelled enthusiastic athletes who expressed sport as a positive experience. ANOVA analysis examining the group differences on health and psychological variables showed that enthusiastic athletes scored higher on well-being,future goals,and intrinsic aspirations. Obligatory athletes scored significantly higher on extrinsic aspirations and health. Conclusion The cluster analysis showed diverse sport commitment profiles. As it was expected results revealed that Enthusiastic athletes had significantly higher scores on most of the psychological scales. Positive experience of physical activity and sport may have a significant role in life satisfaction and affect the short- and long-term future goals. Our results suggest that athletes who participate in sport only for obligatory reasons are more likely to have extrinsic aspirations. As the age increases,the motivation to sport decreases. More investigations are needed to understand the psychological background of sport motivation,but we believe that our study provides useful information for better understanding of young athletes’ sports participation.