Physical activity and energy expenditure measurements using accelerometers in older adults
Physical activity and energy expenditure measurements using accelerometers in older adults
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DOI：
10.3305/nh.2010.25.2.4439
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发表时间：
2010-04-01
期刊：
影响因子：
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通讯作者：
González Gallego, J.
中科院分区：
文献类型：
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作者：
Garatachea, N.;Torres Luque, G.;González Gallego, J.
本综述的目的是解决与基于加速度计的老年人体力活动（PA）评估相关的方法学问题。对最近更新的技术也有特别的兴趣。目前还没有确切的证据表明哪些是更有效和可靠的加速度计模型用于老年人。在选择加速度计时，可负担性、产品可靠性、监测器尺寸、技术支持以及与其他研究的可比性等问题可能与仪器的相对有效性和可靠性同样重要。加速度计应尽可能靠近身体的质心，对于使用助行器的老年人，应将其放置在身体的同一侧。通过仔细的培训和监督，可以减少由于定位而引起的变化。通常，采样周期为3至7天，目前尚不清楚老年人工作日和周末之间是否存在差异。老化对身体和认知健康的影响可能会限制老年人遵守加速度计协议的能力;在这方面，已经提出了许多方法来提高对研究协议的依从性。加速度计可以提供关于PA的移动性和客观测量的可靠信息。这些活动监测器有显着的优势时，与其他定量方法测量的能量消耗。加速度计目前主要用于研究环境;然而，随着最近的进展，将其纳入临床和健身实践是可能的，并且正在增加。
The purpose of this review is to address methodological issues related to accelerometer-based assessments of physical activity (PA) in older individuals. Special interest is also put on recently updated technology. No definitive evidence exists currently to indicate which are the more valid and reliable accelerometer models for use with older people. When it comes to selecting an accelerometer, issues of affordability, product reliability, monitor size, technical support, and comparability with other studies may be equally as important as the relative validity and reliability of an instrument. The accelerometer should be attached as close as possible to the body's center of mass, and in the case of elders using walking aids, it should be placed on the same body side. Variability due to positioning can be reduced with careful training and supervision. Typically, the sampling period is between 3 and 7 days and it is not yet clear if variability exists between weekdays and weekend in the elderly. It is possible that aging effects on physical and cognitive health may limit the ability of an older adult to be compliant with an accelerometer protocol; in this line many methods have been suggested for increasing compliance to protocols for research studies. Accelerometers can provide reliable information on mobility and objective measurement of PA. These activity monitors have significant advantages when compared with other quantitative methods for measurement of energy expenditure. Accelerometers are currently used mainly in a research setting; however, with recent advances, incorporation into clinical and fitness practice is possible and increasing.