Human Biology Department, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Centre +, Maastricht, The Netherlands.
Obes Rev. 2013 Jun;14(6):451-62. doi: 10.1111/obr.12021. Epub 2013 Feb 7.
The field of application of accelerometry is diverse and ever expanding. Because by definition all physical activities lead to energy expenditure, the doubly labelled water (DLW) method as gold standard to assess total energy expenditure over longer periods of time is the method of choice to validate accelerometers in their ability to assess daily physical activities. The aim of this paper was to provide a systematic overview of all recent (2007-2011) accelerometer validation studies using DLW as the reference. The PubMed Central database was searched using the following keywords: doubly or double labelled or labeled water in combination with accelerometer, accelerometry, motion sensor, or activity monitor. Limits were set to include articles from 2007 to 2011, as earlier publications were covered in a previous review. In total, 38 articles were identified, of which 25 were selected to contain sufficient new data. Eighteen different accelerometers were validated. There was a large variability in accelerometer output and their validity to assess daily physical activity. Activity type recognition has great potential to improve the assessment of physical activity-related health outcomes. So far, there is little evidence that adding other physiological measures such as heart rate significantly improves the estimation of energy expenditure.
加速度计的应用领域多种多样，且不断扩大。因为根据定义，所有身体活动都会导致能量消耗，所以双标水 (DLW) 法作为评估较长时间内总能量消耗的金标准，是验证加速度计评估日常身体活动能力的首选方法。本文旨在对所有最近（2007-2011 年）使用 DLW 作为参考的加速度计验证研究进行系统综述。使用以下关键字在 PubMed Central 数据库中进行搜索：双标或双标记或标记水与加速度计、加速度计、运动传感器或活动监测器相结合。限制条件设置为包括 2007 年至 2011 年的文章，因为早期的出版物已在之前的综述中涵盖。总共确定了 38 篇文章，其中 25 篇被选中包含足够的新数据。有 18 种不同的加速度计得到了验证。加速度计的输出及其评估日常身体活动的有效性存在很大差异。活动类型识别具有很大的潜力，可以改善对与身体活动相关的健康结果的评估。到目前为止，几乎没有证据表明添加其他生理测量（如心率）可以显著提高能量消耗的估计值。
