验证一个actigraphy手表的睡眠测量:仪器验证研究研究
Mari Waki1, Ryohei Nakada1, Kayo Waki1
1Department of Biomedical Informatics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
JMIR formative research
|January 6, 2025
概括
最初,iAide2设备对睡眠时间和总睡眠时间 (TST) 显示了中等的准确性. 校准显著改善了iAide2 的性能.
科学领域:
- 生物医学工程 生物医学工程
- 睡眠科学 睡眠科学
- 可穿戴技术可穿戴技术
背景情况:
- iAide2 (Tokai) 是一款具有潜在研究应用的无线体力活动监测器.
- 它的睡眠测量准确性与验证的标准相比仍然未被评估.
研究的目的:
- 评估iAide2在测量睡眠时间和总睡眠时间 (TST) 的性能.
- 开发和验证一个校准方法,以提高iAide2的睡眠测量准确度.
主要方法:
- 在6名参与者身上进行了自由生活睡眠监测,使用iAide2和经过验证的动图仪 (MotionWatch 8).
- 睡眠时间和TST在64个晚上被记录下来,两种设备都使用事件标记器同步.
- 类内相关系数 (ICC) 用于在校准前后评估设备之间的一致性.
主要成果:
- 未校准的iAide2显示了对睡眠时间 (ICC=0.69) 和TST (ICC=0.56) 的中度一致.
- 一致性ICCs对于睡眠时间 (0.91) 是很好的,对于TST (0.78) 是中度的.
- 在校准后,ICC显著改善,为睡眠时间的0.96和TST的0.82,在参与者中显示出强度.
结论:
- 未校准的iAide2测量睡眠时间和TST有显著的错误,限制了它们的绝对量化使用.
- 一种简单,强大的校准方法大大提高了iAide2的准确性,验证了其在睡眠研究中的使用.
- 校准的iAide2适用于体力活动研究中的可靠睡眠测量.
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