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sensor-based physical activity, sedentary time, and reported cell phone screen time: A hierarchy of correlates in youth

引用

Journal of sport and Health science 2021年第1期10卷 55-64页

作者： Pedro b.Júdice João P.Magalhães Gil b.Rosa Duarte Henriques-Neto Megan Hetherington-Rauth luís b.sardinha Exercise and Health Laboratory CIPERFaculty of Human KineticsUniversity of LisbonLisbon 1499-002Portugal Faculty of Physical Education and sport Lusofona UniversityLisbon 1749-024Portugal

background:Evidence on correlates relies on subjective metrics and fails to include correlates across all levels of the ecologic *** determined which correlates best predict sensor-based physical activity(PA),sedentary time(sT),and self-reported cell phone screen time(CsT)in a large sample of youth,while considering a multiplicity of ***:Using sensor-based accelerometry,we assessed the PA and sT of 2179 youths.A χ^2 automatic interaction detection algorithm was used to hierarchize the correlates associated with too much sT(>50th percentile),insufficient moderate-to-vigorous PA(MVPA)(sT(≥2 h/day).Results:Among youth 10-14 years old,the correlates for being inactive consisted of being a girl,not having sport facilities in the neighborhood,and not perceiving the neighborhood as a safe place,whereas in the youth 15-18 years old,the correlate for being inactive was not performing sports(9.7%chance of being active).The correlates for predicting high sT in the younger group was not performing sports(55.8%chance for high sT),and in the older group,the correlates were not owning a pet,perceiving the neighborhood as safe,and having inactive parents(63.7%chance for high sT).In the younger group,the greatest chances of having high CsT were among those who were in the last elementary school years,who were girls,and who did not have friends in the neighborhood(73.1%chance for high CsT),whereas in the older group,the greatest chance for having high CsT was among those who were girls and had a TV in the bedroom(74.3%chance for high CsT).Conclusion:To counteract sT and boost MVPA among youths,a specific focus on girls,the promotion of sport participation and facilities,neighborhood safety,and involvement of family must be prioritized.

关键词： Adolescents Environment Objective sedentary behavior socioecologic model

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