Background

: Guidelines recommend that adolescents should accumulate an average of 60 min per day of moderate-to-vigorous physical activity (MVPA). However, using only this cut-off could hide important information. For instance, from a population-level point of view, increasing physical activity for those with no or low physical activity could provide more health benefits than increasing physical activity for those with intermediate levels. Also, including a more sensitive cut-point of at least 1 day per week could be an additional strategy for identifying those with low access/opportunities for physical activity practice. Thus, the current study aims to estimate the prevalence of ≥60 min of MVPA 1 or more days per week among adolescents globally, and to describe any relevant gender inequalities.

Methods

: We used representative datasets from 146 countries/territories collected between 2003 and 2019. MVPA was self-reported. Participants were grouped into younger (≤14 years old) and older (>14 years old) adolescents. Crude Poisson regression models were used to identify the relative differences in ≥60 min of MVPA 1 or more days per week between boys and girls, and random-effects meta-analysis models were used to identify the pooled estimates. Analyses were stratified by country and region.

Results

: Approximately 80% of both younger and older adolescents reported ≥60 min of MVPA 1 or more days per week. This prevalence was ≥94% in Europe & Central Asia and North America, while the estimates for the other regions were <77%. The prevalence of ≥60 min of MVPA 1 or more days per week was higher among boys than girls, with the largest differences occurring among the oldest adolescents (PR_≤14y: 1.04 (95% confidence interval (95%CI):1.03‒1.04) vs. PR_>14y: 1.09 (95%CI:1.08‒1.10)).

Conclusion

: Approximately 8 out of 10 adolescents reported accumulating ≥60 min of MVPA at least 1 day per week, with notable differences between regions. Gender differences were observed in several countries, especially among the oldest adolescents. Priorities for physical activity promotion among adolescents should include increasing access/opportunities for physical activity among those who do not achieve ≥60 min of MVPA 1 or more days per week and reducing gender inequalities.

中文翻译：

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自我报告每周 1 天或更多天进行至少 60 分钟中度至剧烈体力活动的全球患病率和性别不平等：对 707,616 名青少年进行的分析

背景

：指南建议青少年每天应平均积累 60 分钟的中度至剧烈体力活动 (MVPA)。然而，仅使用这种截止可能会隐藏重要信息。例如，从人口水平的角度来看，增加没有或低体力活动的人的体力活动比增加中等水平的人的体力活动可以提供更多的健康益处。此外，包括每周至少 1 天的更敏感的切点可能是识别那些身体活动练习机会/机会较少的人的额外策略。因此，本研究旨在估计全球青少年每周 1 天或以上 MVPA ≥ 60 分钟的患病率，并描述任何相关的性别不平等。

方法

：我们使用 2003 年至 2019 年间收集的来自 146 个国家/地区的代表性数据集。MVPA 是自我报告的。参与者被分为年轻（≤14 岁）和年长（>14 岁）青少年。使用粗泊松回归模型来确定男孩和女孩之间每周 1 天或更多天 ≥60 分钟 MVPA 的相对差异，并使用随机效应荟萃分析模型来确定汇总估计值。分析按国家和地区进行分层。

结果

：大约 80% 的年轻和年长青少年报告每周 1 天或以上 MVPA ≥60 分钟。欧洲、中亚和北美的患病率≥94%，而其他地区的估计值<77%。每周 1 天或以上 MVPA ≥ 60 分钟的发生率在男孩中高于女孩，其中最大的差异发生在年龄最大的青少年中（PR _{≤ 14 岁}：1.04（95% 置信区间 (95%CI)：1.03−1.04） )与PR _{>14 年}：1.09 (95%CI:1.08−1.10))。

结论

：大约十分之八的青少年报告每周至少 1 天积累 ≥60 分钟的 MVPA，不同地区之间存在显着差异。在一些国家，尤其是年龄最大的青少年中，观察到了性别差异。促进青少年体育活动的优先事项应包括增加每周 1 天或以上 MVPA ≥ 60 分钟的青少年进行体育活动的机会/机会，并减少性别不平等。