Using accelerometers to measure physical activity in large-scale epidemiological studies: issues and challenges.
Using accelerometers to measure physical activity in large-scale epidemiological studies: issues and challenges.
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DOI：
10.1136/bjsports-2013-093154
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发表时间：
2014-02
影响因子：
18.4
通讯作者：
Shiroma EJ
中科院分区：
文献类型：
--
作者：
Lee IM;Shiroma EJ
目前的有氧运动指南要求成年人每周进行150分钟的中等强度体力活动，大量流行病学证据表明，这种水平的运动可以降低许多慢性病的发病率。关于轻强度活动是否也有这样的好处，以及久坐行为是否是这些慢性病风险增加的独立预测因素，人们知之甚少，因为对这些行为的不准确评估和横断面研究设计迄今知之甚少。最近评估方法的技术进步使使用运动传感器，如加速度计，用于纵向、大规模的流行病学研究是可行的。几项这样的研究正在收集传感器评估的客观体力活动测量，目的是将这些测量与临床终点的发展联系起来。这是一个相对较新的研究领域；因此，在本文中，我们以妇女健康研究(WHS)为例，说明与数据收集、数据处理和对收集的大量数据进行分析有关的挑战。世界卫生组织计划收集7天的加速计评估的体力活动和久坐行为，年龄在≥62岁的18,000名女性。在收集数据方面存在一些后勤挑战；然而，截至2013年8月31日，已有11590名妇女提供了一些数据。此外，世界卫生组织在数据简化和数据分析方面的经验有助于为其他类似的大规模流行病学研究提供信息。关于光强度活动和久坐行为对健康影响的重要数据将来自收集对这些行为的客观评估的大规模流行病学研究。
Current guidelines for aerobic activity require that adults carry out ≥150 minutes/week of moderate-intensity physical activity, with a large body of epidemiologic evidence showing this level of activity to decrease the incidence of many chronic diseases. Less is known about whether light-intensity activities also have such benefits, and whether sedentary behavior is an independent predictor of increased risks of these chronic diseases, as imprecise assessments of these behaviours and cross-sectional study designs have limited knowledge to date. Recent technological advances in assessment methods have made the use of movement sensors, such as the accelerometer, feasible for use in longitudinal, large-scale epidemiologic studies. Several such studies are collecting sensor-assessed, objective measures of physical activity with the aim of relating these to the development of clinical endpoints. This is a relatively new area of research; thus, in this paper, we use the Women’s Health Study (WHS) as a case study to illustrate challenges related to data collection, data processing, and analyses of the vast amount of data collected. The WHS plans to collect 7 days of accelerometer-assessed physical activity and sedentary behavior in ~18,000 women aged ≥62 years. Several logistical challenges exist in collecting data; nonetheless as of 31 August 2013, 11,590 women have already provided some data. Additionally, the WHS experience on data reduction and data analyses can help inform other similar large-scale epidemiologic studies. Important data on the health effects of light-intensity activity and sedentary behaviour will emerge from large-scale epidemiologic studies collecting objective assessments of these behaviours.
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影响因子：
4.1
作者：
Matthews CE;Hagströmer M;Pober DM;Bowles HR
通讯作者：
Bowles HR
影响因子：
4.1
作者：
Gennuso KP;Gangnon RE;Matthews CE;Thraen-Borowski KM;Colbert LH
通讯作者：
Colbert LH
DOI：
10.1249/mss.0b013e3182399dcc
发表时间：
2012-01-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Heil, Daniel P.;Brage, Soren;Rothney, Megan P.
通讯作者：
Rothney, Megan P.
影响因子：
7.7
作者：
Hamilton, Marc T.;Hamilton, Deborah G.;Zderic, Theodore W.
通讯作者：
Zderic, Theodore W.
影响因子：
7.1
作者：
Matthews, Charles E.;George, Stephanie M.;Schatzkin, Arthur
通讯作者：
Schatzkin, Arthur