协调三种不同加速度计,对 24 小时活动周期进行分类。

IF 2.3 4区 医学 Q3 BIOPHYSICS
Benjamin D Boudreaux, Ginny M Frederick, Patrick J O'Connor, Ellen M Evans, Michael D Schmidt
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引用次数: 0

摘要

人们对测量 24 小时活动周期(24-HAC)的关键组成部分[睡眠、久坐行为(SED)、轻体力活动(LPA)和中度至剧烈体力活动(MVPA)]的兴趣与日俱增,因此需要更好的方法。单一的腕戴式加速度计和不同的自我报告工具可以评估 24 小时健康活动量,但可能无法准确划分不同组成部分所花费的时间,或存在回忆错误:为了克服这些局限性,本研究统一了多个免费研究级加速度计的输出结果,并评估了这种方法的可行性和后勤挑战:参与者(n=108)在 7-10 天内分别佩戴:(a) 手腕上的 ActiGraph GT9X、(b) 大腿上的 activPAL3 和 (c) 臀部上的 ActiGraph GT3X+ 以捕捉 24-HAC 值。对不同设备的参与者遵守测量协议的情况进行了比较,并开发了一种算法来协调来自加速度计的数据。主要结果:主要结果:94.3%-96.7%的参与者提供了每个设备的可用数据,89.4%的参与者提供了所有三个设备的可用数据。GT3X+和activPAL3对佩戴说明的遵守率分别为70.7%和93.2%。统一估算表明,大学生一天 24 小时中平均 34% 的时间用于睡眠,41% 的时间用于久坐,21% 的时间用于 LPA,4% 的时间用于 MVPA。这些行为因时间和星期的不同而有很大差异:意义:结合使用三个加速度计来得出统一的 24-HAC 估计值是可行的。使用多个加速度计可以最大限度地减少 24-HAC 数据的缺口,但也应考虑到额外的研究成本以及参与者和研究人员负担加重等因素:睡眠、久坐行为、轻度体力活动、中到重度体力活动、加速度计、算法 .
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Harmonization of three different accelerometers to classify the 24 h activity cycle.

Increasing interest in measuring key components of the 24 h activity cycle (24-HAC) [sleep, sedentary behavior (SED), light physical activity (LPA), and moderate to vigorous physical activity (MVPA)] has led to a need for better methods. Single wrist-worn accelerometers and different self-report instruments can assess the 24-HAC but may not accurately classify time spent in the different components or be subject to recall errors.Objective. To overcome these limitations, the current study harmonized output from multiple complimentary research grade accelerometers and assessed the feasibility and logistical challenges of this approach.Approach. Participants (n= 108) wore an: (a) ActiGraph GT9X on the wrist, (b) activPAL3 on the thigh, and (c) ActiGraph GT3X+ on the hip for 7-10 d to capture the 24-HAC. Participant compliance with the measurement protocol was compared across devices and an algorithm was developed to harmonize data from the accelerometers. The resulting 24-HAC estimates were described within and across days.Main results. Usable data for each device was obtained from 94.3% to 96.7% of participants and 89.4% provided usable data from all three devices. Compliance with wear instructions ranged from 70.7% of days for the GT3X+ to 93.2% of days for the activPAL3. Harmonized estimates indicated that, on average, university students spent 34% of the 24 h day sleeping, 41% sedentary, 21% in LPA, and 4% in MVPA. These behaviors varied substantially by time of day and day of the week.Significance. It is feasible to use three accelerometers in combination to derive a harmonized estimate the 24-HAC. The use of multiple accelerometers can minimize gaps in 24-HAC data however, factors such as additional research costs, and higher participant and investigator burden, should also be considered.

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来源期刊
Physiological measurement
Physiological measurement 生物-工程:生物医学
CiteScore
5.50
自引率
9.40%
发文量
124
审稿时长
3 months
期刊介绍: Physiological Measurement publishes papers about the quantitative assessment and visualization of physiological function in clinical research and practice, with an emphasis on the development of new methods of measurement and their validation. Papers are published on topics including: applied physiology in illness and health electrical bioimpedance, optical and acoustic measurement techniques advanced methods of time series and other data analysis biomedical and clinical engineering in-patient and ambulatory monitoring point-of-care technologies novel clinical measurements of cardiovascular, neurological, and musculoskeletal systems. measurements in molecular, cellular and organ physiology and electrophysiology physiological modeling and simulation novel biomedical sensors, instruments, devices and systems measurement standards and guidelines.
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