Abstract：
BACKGROUND: This study aimed to investigate associations of meeting 24-h movement behavior (24-HMB: physical activity [PA], screen time [ST] in the school-aged youth, and sleep) guidelines with indicators of academic engagement, psychological functioning, and cognitive function in a national representative sample of U.S. youth.
METHODS: In this cross-sectional study, 1794 participants aged 6 to 17 years old were included for multivariable logistic regression to determine the above-mentioned associations, while adjusting for sociodemographic and health covariates.
RESULTS: The proportion of participants who met 24-HMB guideline(s) varied greatly (PA+ ST+ sleep = 34 [weighted 1.17 %], PA + ST = 23 [weighted 1.72 %], PA + sleep = 52 [weighted 2.15 %], PA = 34 [weighted 2.88 %], ST = 142 [weighted 7.5 %], ST+ sleep = 209 [weighted 11.86 %], sleep = 725 [weighted 35.5 %], none = 575 [weighted 37.22 %]). Participants who met ST guideline alone and integrated (ST + Sleep and ST + sleep + PA) guidelines demonstrated the consistently beneficial associations with learning interest/curiosity, caring for school performance, completing required homework, resilience, cognitive difficulties, self-regulation (ps < 0.05).
CONCLUSIONS: Meeting 24-HMB guidelines in an isolated or integrative manner was associated with improved academic engagement, psychological functioning, and reduced cognitive difficulties. These findings highlight the importance of the promotion of 24-HMB guidelines in youth with internalizing problems. Future longitudinal studies are needed to investigate whether changes or modifications of meeting specific 24-HMB guidelines (especially ST) is beneficial for youth with internalizing problems.
METHODS: In this cross-sectional study, 1794 participants aged 6 to 17 years old were included for multivariable logistic regression to determine the above-mentioned associations, while adjusting for sociodemographic and health covariates.
RESULTS: The proportion of participants who met 24-HMB guideline(s) varied greatly (PA+ ST+ sleep = 34 [weighted 1.17 %], PA + ST = 23 [weighted 1.72 %], PA + sleep = 52 [weighted 2.15 %], PA = 34 [weighted 2.88 %], ST = 142 [weighted 7.5 %], ST+ sleep = 209 [weighted 11.86 %], sleep = 725 [weighted 35.5 %], none = 575 [weighted 37.22 %]). Participants who met ST guideline alone and integrated (ST + Sleep and ST + sleep + PA) guidelines demonstrated the consistently beneficial associations with learning interest/curiosity, caring for school performance, completing required homework, resilience, cognitive difficulties, self-regulation (ps < 0.05).
CONCLUSIONS: Meeting 24-HMB guidelines in an isolated or integrative manner was associated with improved academic engagement, psychological functioning, and reduced cognitive difficulties. These findings highlight the importance of the promotion of 24-HMB guidelines in youth with internalizing problems. Future longitudinal studies are needed to investigate whether changes or modifications of meeting specific 24-HMB guidelines (especially ST) is beneficial for youth with internalizing problems.
摘要：
背景：这项研究旨在调查满足24小时运动行为的关联（24-HMB：身体活动[PA]，在学龄青年的屏幕时间[ST]，和睡眠）具有学术参与度指标的指南，心理功能,和认知功能在美国青年的国家代表性样本。
方法：在这项横断面研究中，纳入1794名6至17岁的参与者进行多变量逻辑回归以确定上述关联，同时调整社会人口统计学和健康协变量。
结果：符合24-HMB指南的参与者比例差异很大（PA+ST+睡眠=34[加权1.17%]，PA+ST=23[加权1.72%],PA+睡眠=52[加权2.15%]，PA=34[加权2.88%]，ST=142[加权7.5%]，ST+睡眠=209[加权11.86%],睡眠=725[加权35.5%]，无=575[加权37.22%]）。仅符合ST指南和综合（ST+睡眠和ST+睡眠+PA）指南的参与者表现出与学习兴趣/好奇心的持续有益关联。关心学校的表现，完成所需的作业，弹性，认知困难，自我调节(ps<0.05)。
结论：以孤立或综合的方式参加24-HMB指南与提高学术参与度有关。心理功能,并减少认知困难。这些发现强调了在有内在化问题的青年中推广24-HMB准则的重要性。需要进一步的纵向研究来调查是否改变或修改符合特定的24-HMB指南（尤其是ST）对有内在化问题的年轻人有益。
方法：在这项横断面研究中，纳入1794名6至17岁的参与者进行多变量逻辑回归以确定上述关联，同时调整社会人口统计学和健康协变量。
结果：符合24-HMB指南的参与者比例差异很大（PA+ST+睡眠=34[加权1.17%]，PA+ST=23[加权1.72%],PA+睡眠=52[加权2.15%]，PA=34[加权2.88%]，ST=142[加权7.5%]，ST+睡眠=209[加权11.86%],睡眠=725[加权35.5%]，无=575[加权37.22%]）。仅符合ST指南和综合（ST+睡眠和ST+睡眠+PA）指南的参与者表现出与学习兴趣/好奇心的持续有益关联。关心学校的表现，完成所需的作业，弹性，认知困难，自我调节(ps<0.05)。
结论：以孤立或综合的方式参加24-HMB指南与提高学术参与度有关。心理功能,并减少认知困难。这些发现强调了在有内在化问题的青年中推广24-HMB准则的重要性。需要进一步的纵向研究来调查是否改变或修改符合特定的24-HMB指南（尤其是ST）对有内在化问题的年轻人有益。
