School of Health and Rehabilitation Sciences, The University of Queensland, Australia.
School of Kinesiology and Health Studies, Queen's University, Kingston, ON K7L2N9, Canada.
J Sci Med Sport. 2021 May;24(5):468-473. doi: 10.1016/j.jsams.2020.10.017. Epub 2020 Nov 7.
This study determined the prevalence of adolescents meeting the individual and combinations of the Australian 24-Hour Movement Guidelines, and their associations with the health related quality of life (HRQoL).
The participants were 3096 adolescents (mean age: 12.4 years; 49% female) from wave 7 of the birth-cohort of the Longitudinal Study of Australian Children. The outcome was parent-reported HRQoL. Meeting the 24-Hour Movement Guidelines was defined as: ≥60 min/day of moderate to vigorous physical activity (MVPA), ≤2 hour/day of recreational screen time, and 9-11 hour/night of sleep. Generalised estimating equations were used to examine the associations between meeting vs. not meeting recommendations and HRQoL outcomes.
The prevalence of adolescents meeting all three recommendations was 2.4%, with 23% meeting two, and 57% meeting one recommendation. Meeting all three recommendations was associated with higher overall HRQoL score (β = 4.96, 95% CI: 2.54-7.38) as well as physical (β = 5.22, 95% CI: 2.61-7.83) and psychosocial (β = 4.76, 95% CI: 1.77-7.75) scores. Meeting combinations of screen time with MVPA or sleep recommendations were associated with higher scores for all HRQoL outcomes, while meeting MVPA and sleep recommendations was associated with overall HRQoL score. Compared to meeting no recommendation, meeting more recommendations was significantly and incrementally associated with higher scores for all HRQoL outcomes (p<0.001).
Overall, meeting more recommendations within the 24-Hour Movement Guidelines was associated with better HRQoL outcomes. However, only a small percentage of adolescents met all the recommendations, which underscores the need for promoting and supporting adherence to these behaviours.
本研究旨在确定符合澳大利亚 24 小时运动指南的个体和组合的青少年患病率，并探讨其与健康相关生活质量（HRQoL）的关联。
参与者为来自澳大利亚儿童纵向研究第 7 波的 3096 名青少年（平均年龄：12.4 岁，49%为女性）。主要结局为父母报告的 HRQoL。符合 24 小时运动指南的定义为：≥60 分钟/天的中等到剧烈体力活动（MVPA），≤2 小时/天的娱乐性屏幕时间，以及 9-11 小时/夜的睡眠。广义估计方程用于检验符合与不符合建议与 HRQoL 结果之间的关联。
符合所有三项建议的青少年患病率为 2.4%，符合两项建议的患病率为 23%，符合一项建议的患病率为 57%。符合所有三项建议与整体 HRQoL 评分较高相关（β=4.96，95%置信区间：2.54-7.38），以及身体（β=5.22，95%置信区间：2.61-7.83）和心理社会（β=4.76，95%置信区间：1.77-7.75）评分较高。符合屏幕时间与 MVPA 或睡眠建议组合与所有 HRQoL 结果的评分较高相关，而符合 MVPA 和睡眠建议与整体 HRQoL 评分相关。与不符合任何建议相比，符合更多建议与所有 HRQoL 结果的评分较高显著相关（p<0.001）。
总体而言，符合 24 小时运动指南中的更多建议与更好的 HRQoL 结果相关。然而，只有一小部分青少年符合所有建议，这突显了促进和支持遵守这些行为的必要性。
