手腕加速度计的标准有效性用于通过摄入平衡技术评估能量摄入量
Paul R Hibbing1,2, Gregory J Welk3, Daniel Ries4
1Department of Kinesiology and Nutrition, University of Illinois Chicago, 1919 W. Taylor St, Rm 650, Mail Code 517, Chicago, IL, 60612, USA. phibbing@uic.edu.
The international journal of behavioral nutrition and physical activity
|September 25, 2023
概括
基于加速计的能量摄入评估显示出有希望的结果,但需要改进. 手腕戴式设备提供了一个可行的,虽然不完美的,在研究环境中估计能量平衡的方法.
科学领域:
- 生理学 生理学 生理学
- 生物医学工程 生物医学工程
- 数据科学数据科学数据科学
背景情况:
- 摄入平衡评估通过将能源支出 (EE) 和储能变化 (ΔES) 结合起来来估计能量摄入量 (EI).
- 之前的研究并未使用开源技术验证基于加速度计的EI计算.
- 使用手腕加速度计进行摄入平衡评估的有效性需要调查.
研究的目的:
- 评估基于加速度计的摄入平衡方法的标准有效性.
- 评估 ActiGraph 手腕加速度计的精度,以估计能量摄入量.
主要方法:
- 24名健康成年人参加了两次为期14天的测量期,他们戴着ActiGraph加速计.
- 标准能量摄入量 (EI) 确定使用双X射线吸收度对 ΔES 和双标记水对EE.
- 11种预测方法 (8种基于加速度计,3种非加速度计) 使用小组级偏差和个人级别错误指标进行了比较.
主要成果:
- 基于加速度计的方法显示平均偏差在-167至124千卡/天之间.
- 最好的加速度计方法平均绝对误差为323-362千卡/天 (18.1-19.3%的误差).
- 根据布兰德-阿尔特曼分析,所有测试方法都表现出系统偏差.
结论:
- 基于加速度计的摄入平衡方法有可能改善EI评估.
- 进一步完善这些方法对于准确估计能量摄入量至关重要.
- 提供了一个R包,以支持这些方法的未来研究和开发.
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