Frontiers in Public Health · 2019 · 26 citations · 35 references
EducationHealth PromotionKinesiologyAdolescent HealthHealth-related FitnessPhysical ActivityAdolescent Health PromotionLeisure-time Physical ActivityPhysical Activity AssessmentPhysical Activity PromotionPhysical FitnessSport ParticipationPhysical Activity LevelYouth Physical Activity Assessment
Although physical activity level (PAL) is positively correlated with adolescents' health, many adolescents do not fulfill recommendations for physical activity. This study examines the associations of organized sport and self-organized physical activity, with PAL among adolescents. Participants were 301 adolescents (12-13 year-olds). The adolescents wore accelerometers for 1 week according to international standards, and reported their participation in organized sport and self-organized physical activity in a questionnaire. The results showed that the level of participation in organized sport was positively associated with the adolescents' total PAL, while there was no significant association between time spent in self-organized physical activity and adolescents' daily minutes of moderate and vigorous physical activity. In addition, boys who participated <3 h per week (or not at all) in organized sport stood out with the lowest fulfillment of recommended PAL. Our findings underline the critical importance of getting adolescents, especially boys, to participate in organized sport and not to drop out from organized sport during adolescence.
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Statistical Power Analysis for the Behavioral Sciences
Keith E. Muller · Technometrics · 1989 · 16.5K citations
Calibration of two objective measures of physical activity for children
Kelly R. Evenson, Diane Catellier, Karminder Gill et al. · Journal of Sports Sciences · 2008 · 2.7K citations
Ashley R Cooper, Anna Goodman, Angie S Page et al. · International Journal of Behavioral Nutrition and Physical Activity · 2015 · 854 citations · Full text