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可靠的测量休息活动节奏碎片化:需要多少天?

Ian Meneghel Danilevicz¹, Sam Vidil¹, Benjamin Landré¹

¹Epidemiology of Ageing and Neurodegenerative Diseases, Université Paris Cité, INSERM, U1153, CRESS, 10 Avenue de Verdun, Paris, 75010, France.

European review of aging and physical activity : official journal of the European Group for Research into Elderly and Physical Activity

|October 19, 2024

概括

来自手腕加速度计的可靠休息活动节律 (RAR) 碎片化指标需要2-5个有效日. 这项研究确定了准确评估老年人健康风险所需的最低佩戴时间.

科学领域:

老年学是指老年学的学科.
生物医学工程生物医学工程
时间生物学时间生物学

背景情况:

分断的休息活动节奏 (RAR) 与不良健康结果有关.
佩戴在手腕上的加速度计用于用IS,IV,TP,α和ABI等指标量化RAR碎片化.
在现实世界的加速度计数据中,非磨损时期可能会导致RAR碎片化测量偏差.

研究的目的:

为了确定可靠的RAR碎片化指标所需的有效磨损日的最低数量.
评估非磨损数据遗漏与归算对指标可靠性的影响.

主要方法:

分析了来自老年人 (60-83岁) 的加速计数据.
模拟的非磨损模式应用于具有1-7有效日的数据.
使用类内相关系数 (ICC) 和平均绝对百分比误差 (MAPE) 评估可靠性,将结果与完整数据进行比较.

主要成果:

五个有效日,省略了不磨损期,实现了可靠的指标 (ICC ≥ 0.75,MAPE ≤ 15%) 对日间稳定性 (IS) 和活动平衡指数 (ABI) 的可靠指标.
过渡概率 (TPs;2-3天),自我相似性参数 (α) 和日内变化 (IV;4天) 需要更少的天.
计入非磨损数据并没有提高计量精度.

结论:

在老年人中使用手腕加速度计进行可靠的RAR测量需要2-5个有效日,这取决于具体的指标.
对于IS和ABI,建议使用5天,而TP,α和IV需要更少的天才能获得可靠的结果.

关键词:

计入算法是指指计入算法.每日间的稳定性每天内变化的可变性.没有穿着的非穿着.模拟模拟是为了模拟.过渡概率过渡概率

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