ActiGraph and Actical physical activity monitors: a peek under the hood.
ActiGraph and Actical physical activity monitors: a peek under the hood.
复制标题
DOI：
10.1249/mss.0b013e3182399f5e
复制
发表时间：
2012-01
影响因子：
4.1
通讯作者：
Freedson P
中科院分区：
文献类型：
--
作者：
John D;Freedson P
自20世纪80年代以来，研究人员一直使用基于加速度计的活动监测器来量化身体活动。这些显示器的技术不断发展。例如，已经对监测硬件（传感器的类型[例如，压电、压阻、电容]）和输出格式（计数与原始信号）。常用的活动监视器属于ActiGraph和Actical系列。本文介绍了这些常用活动监视器的几个机电方面的信息。本文的大部分内容通过描述7164、GT1M和GT3X型号之间的差异，重点介绍了ActiGraph活动监视器的演变。随后简要描述器械固件和监护仪校准状态的影响。我们还描述了Actical，但讨论很短，因为该设备自首次推出以来没有发生任何重大变化。这篇论文可能有助于研究人员更好地了解活动监测器的功能。例如，体育活动研究人员中的一个常见误解是ActiGraph GT1M和GT3X是基于压电传感器的监护仪。因此，这些信息也可以帮助研究人员在科学出版物中更准确地描述这些监测器。
Since the 1980s, accelerometer-based activity monitors have been used by researchers to quantify physical activity. The technology of these monitors has continuously evolved. For example, changes have been made to monitor hardware (type of sensor [e.g., piezoelectric, piezoresistive, capacitive]) and output format (counts vs. raw signal). Commonly used activity monitors belong to the ActiGraph and the Actical families This article presents information on several electro-mechanical aspects of these commonly used activity monitors. The majority of the article focuses on the evolution of the ActiGraph activity monitor by describing the differences among the 7164, the GT1M, and the GT3X models. This is followed by brief descriptions of the influences of device firmware and monitor calibration status. We also describe the Actical, but the discussion is short because this device has not undergone any major changes since it was first introduced. This paper may help researchers gain a better understanding of the functioning of activity monitors. For example, a common misconception among physical activity researchers is that the ActiGraph GT1M and GT3X are piezoelectric sensor-based monitors. Thus, this information may also help researchers to describe these monitors more accurately in scientific publications.