Adamo Kristi B, Prince Stéphanie A, Tricco Andrea C, Connor-Gorber Sarah, Tremblay Mark
Healthy Active Living and Obesity Research Group, Children's Hospital of Eastern Ontario Research Institute, ON, Canada.
Int J Pediatr Obes. 2009;4(1):2-27. doi: 10.1080/17477160802315010.
Accurate assessment of physical activity (PA) in children and adolescents is required to establish PA levels, monitor changes and inform public healthy policy. This study systematically reviews the literature to determine the extent of agreement between indirect (e.g., questionnaire) and direct (e.g., accelerometry) assessments of PA in pediatric populations (<or=19 years).
Literature was identified through searching electronic databases (e.g., MEDLINE, EMBASE), websites of relevant organizations and conference abstracts until April 2007. Studies were included if they collected indirect and direct measures of PA in pediatric populations and were reported in English. Quality of included studies was appraised using a modified Downs and Black tool.
A total of 83 studies were included; 24 describing comparable data and 59 including a correlation analysis. The majority of correlations reported between indirect and direct measures were low-to-moderate (range: -0.56 to 0.89). Overall, 72% of the indirect measures overestimated the directly measured values. Combined gender, as well as male- and female-only data comparing indirect measures to accelerometery, heart rate monitoring or direct observation, all reported an overestimation by indirect method. A similar trend was observed in combined gender data comparing indirect measures with doubly labelled water; however, the opposite trend was observed in the male- and female-only data with a slight underestimation by indirect measure.
Substantial discrepancies and moderate correlations between indirect methods and direct measures of assessing PA in pediatric populations are of concern, especially when trying to establish relationships with health outcomes.
为确定儿童和青少年的身体活动（PA）水平、监测变化并为公共卫生政策提供依据，需要对其PA进行准确评估。本研究系统回顾文献，以确定儿科人群（≤19岁）中PA的间接评估（如问卷调查）和直接评估（如加速度计测量）之间的一致程度。
通过检索电子数据库（如MEDLINE、EMBASE）、相关组织的网站和会议摘要来识别文献，检索截至2007年4月。纳入的研究需收集儿科人群PA的间接和直接测量数据，并以英文发表。使用改良的唐斯和布莱克工具评估纳入研究的质量。
共纳入83项研究；24项描述了可比数据，59项包括相关性分析。间接测量和直接测量之间报告的大多数相关性为低到中度（范围：-0.56至0.89）。总体而言，72%的间接测量高估了直接测量值。综合性别以及仅男性和女性的数据，将间接测量与加速度计、心率监测或直接观察进行比较，均报告间接方法存在高估。在将间接测量与双标水进行比较的综合性别数据中观察到类似趋势；然而，在仅男性和女性的数据中观察到相反趋势，间接测量略有低估。
儿科人群中PA间接评估方法与直接测量之间存在显著差异和中度相关性，这令人担忧，尤其是在试图建立与健康结果的关系时。
