دانلود رایگان مقاله انگلیسی توانمندسازی محیط ورزش جوانان: فعالیت فیزیکی آرام و شدید و چاقی - الزویر 2017

Abstract

Background: Evidence suggests involvement in youth sport does not guarantee daily guidelines for moderate-to-vigorous physical activity (MVPA) are met, and participation may not mitigate the risks associated with physical inactivity. The need to promote higher habitual MVPA engagement among children active in the youth sport context has therefore been underlined. Framed by self-determination theory, the aim of the present study was to examine the implications of the motivational climate created in youth sport, for children’s daily engagement in MVPA and associated adiposity. Specifically, we sought to test a motivational sequence in which children’s perceptions of an empowering coach-created motivational climate were related to autonomous and controlled motivation, which in turn predicted sport-related enjoyment. Finally, enjoyment is assumed to predict accelerometer assessed daily MVPA and, following this, adiposity Method: Male and female youth sport participants aged 9-16 years (N = 112) completed multi-section questionnaires assessing their perceptions of the motivational climate created in youth sport (i.e., autonomy supportive, task involving, socially supportive), autonomous and controlled motivation, and sport-related enjoyment. Daily MVPA engagement was determined via 7 days of accelerometry. Percent body fat (BF%) was estimated using bioelectrical impedance analysis. Results: Path analysis revealed perceptions of an empowering motivational climate positively predicted players’ autonomous motivation, and in turn, sport-related enjoyment. Enjoyment was also significantly negatively related to players’ BF%, via a positive association with daily MVPA. Conclusion: Fostering more empowering youth sport environments may hold implications for the prevention of excess adiposity, through encouraging higher habitual MVPA engagement. Findings may inform the optimal design of youth sport settings for MVPA promotion, and contribute towards associated healthy weight maintenance among youth active in this context. Longitudinal and intervention studies are required to confirm these results.

Conclusion

The conceptualisation of the motivational climate as hierarchical and multidimensional, with the inclusion of both SDT and AGT proffered autonomy supportive, socially supportive and task-involving aspects of coach behavior (in this case, empowering30), may offer a useful approach towards examining the implications of motivational climate for PA engagement among youth. Current findings are the first to elucidate the implications of an empowering coach-created motivational climate for daily MVPA engagement and associated adiposity among males and females active in the youth sport context. Results indicate the creation of more empowering youth sport environments and associated adaptive motivational processes, may hold value for advancing habitual levels of engagement in MVPA, and may also be relevant towards preventing excess adiposity among children and adolescents active in this setting. Findings may contribute towards informing the optimal design of youth sport settings for MVPA promotion and associated healthy weight maintenance among children and adolescents active in this context.