适度至强度体力活动的相对时间如何与2020年关于体力活动和久坐行为的指导方针相对应?
1Department of Neurobiology, Care Sciences, and Society (NVS), Division of Physiotherapy, Karolinska Institutet, Huddinge, SE-141 83, Sweden. philip.von.rosen@ki.se.
Journal of activity, sedentary and sleep behaviors
|April 11, 2025
概括
研究人员确定了中度至强度体力活动 (MVPA) 与清醒时间的新比例. 这个比率有助于确定个人是否符合2020年体育活动指南,使用设备测量数据.
科学领域:
- 公共卫生 公共卫生
- 流行病学 流行病学
- 生物统计学 生物统计学
背景情况:
- 设备测量身体活动数据分析越来越多地使用组合数据分析 (CoDA).
- CoDA促进了对不同行为所花费的相对时间的影响的探索.
- 与体育活动指南相对解释CoDA结果存在挑战,特别是随着加速度计穿戴时间的变化和睡眠数据的缺失.
研究的目的:
- 为了解决对体力活动相对时间的可解释切割点的需求.
- 建立适度至强度体力活动 (MVPA) 与清醒时间的比例,符合2020年成人体力活动指南.
- 为了区分个人满足或不满足每周的MVPA建议.
主要方法:
- 利用了来自NHANES2003-2004研究的公开数据.
- 在不同的人口子集中探索了MVPA中相对时间的截止点.
- 在总样本中分析了灵敏度,特异性和截止值,按磨损时间分类,并在特定的MVPA范围内进行分析.
主要成果:
- 分析表明,对于已识别的截止值,高灵敏度 (88-100%) 和特异性 (66-99%).
- 发现,在MVPA度过的清醒时间中,2.4-4.7%的比例与2020年体育活动指南相符.
- 这些发现为从设备测量数据中评估准则遵守提供了实用指标.
结论:
- 将2.4-4.7%的清醒时间用于中度至剧烈的体力活动 (MVPA),符合2020年体力活动指南.
- 该比率为解释设备测量的体力活动数据提供了一个有价值的工具,在公共卫生建议的背景下.
- 该研究提供了一种方法,即使没有完整的睡眠数据,也可以评估指南的遵守.
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