School of History, Qingdao University, Qingdao, China.
Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou, China.
Front Public Health. 2024 Apr 3;12:1362718. doi: 10.3389/fpubh.2024.1362718. eCollection 2024.
The 24-Hour Movement Guidelines (24-HMG) recommend a balanced combination of physical activity (PA), sedentary behavior (SB) and sleep (SLP) for optimal health. However, there is limited understanding of how well U.S. adolescents adhere to these guidelines. This study aims to analyze the prevalence trends of meeting the 24-HMG among a nationally representative sample of U.S. general adolescents.
The study included 2,273 adolescents (55.3% boys) aged 16-19 who participated in the National Health and Nutrition Examination Surveys (NHANES) from 2007 to 2016. The researchers categorized the adolescents based on whether they met various PA, SB, and SLP recommendations, as well as different combinations of these recommendations, separately for boys and girls. The prevalence rate, weighted by survey data, was calculated along with a 95% confidence interval (CI) to assess the changes in meeting the 24-HMG among U.S. adolescents across different survey years and sociodemographic subgroups.
In the 2015-2016 cycle, approximately 6.3% of adolescents did not meet any of the three recommendations, while only 19.2% of adolescents achieved all three guidelines. Compliance with PA and SB recommendations among adolescents has decreased over time, from 72.5% (65.9% to 79.2%) to 64.2% (57.4% to 70.9%) for PA, and from 59.0% (49.6% to 68.4%) to 46.6% (37.8% to 55.5%) for SB, respectively, from 2007-2008 cycle to 2015-2016 cycle. Boys exhibited more favorable patterns in meeting different sets of recommendations compared to girls (-value <0.001). This includes meeting both PA and SB guidelines (15.5% for boys and 11.1% for girls) and meeting both PA and SLP guidelines (19.5% for boys and 15.7% for girls). The level of parental education was found to have effect on meeting all three guidelines ( < 0.05).
We analyzed ten consecutive years of representative NHANES data to evaluate the prevalence meeting 24-HMG and found that the proportion of adolescents aged 16-19 in the U.S. who adhered to all three movement guidelines simultaneously has consistently remained low throughout each survey cycle. Notably, there has been a significant decline in the proportion of adolescents meeting the SB guideline.
24 小时运动指南（24-HMG）建议将身体活动（PA）、久坐行为（SB）和睡眠（SLP）进行平衡组合，以达到最佳健康状态。然而，人们对美国青少年对这些指南的遵守程度了解有限。本研究旨在分析全美代表性青少年样本中，符合 24-HMG 的流行趋势。
本研究纳入了 2273 名年龄在 16-19 岁的青少年（55.3%为男孩），他们参加了 2007 年至 2016 年的全国健康与营养调查（NHANES）。研究人员根据他们是否符合 PA、SB 和 SLP 的不同推荐标准，以及男孩和女孩分别对这些推荐标准的不同组合，对青少年进行了分类。根据调查数据计算了符合率，并用 95%置信区间（CI）进行加权，以评估不同调查年份和社会人口统计学亚组中美国青少年同时符合 24-HMG 的变化情况。
在 2015-2016 年的周期中，约有 6.3%的青少年不符合三项建议中的任何一项，而只有 19.2%的青少年同时符合三项指南。青少年遵守 PA 和 SB 建议的情况呈下降趋势，从 2007-2008 年周期的 72.5%（65.9%至 79.2%）降至 2015-2016 年周期的 64.2%（57.4%至 70.9%）的 PA，以及从 59.0%（49.6%至 68.4%）降至 46.6%（37.8%至 55.5%）的 SB。与女孩相比，男孩在符合不同组别的建议方面表现出更为有利的模式（P 值<0.001）。这包括同时符合 PA 和 SB 指南（男孩为 15.5%，女孩为 11.1%）和同时符合 PA 和 SLP 指南（男孩为 19.5%，女孩为 15.7%）。研究发现，父母的教育程度对同时符合三项指南有影响（P 值<0.05）。
我们分析了十年来具有代表性的 NHANES 数据，以评估符合 24-HMG 的流行程度，结果发现，美国 16-19 岁青少年同时符合三项运动指南的比例在每个调查周期内始终保持较低水平。值得注意的是，符合 SB 指南的青少年比例显著下降。
