Assessment of physical activity intensity and duration in the paediatric population: evidence to support an a priori hypothesis and sample size in the agreement between subjective and objective methods
Assessment of physical activity intensity and duration in the paediatric population: evidence to support an a priori hypothesis and sample size in the agreement between subjective and objective methods
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DOI：
10.1111/obr.12676
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发表时间：
2018-06-01
期刊：
影响因子：
8.9
通讯作者：
Carvalho, H. B.
中科院分区：
文献类型：
--
作者：
Nascimento-Ferreira, M. V.;De Moraes, A. C. F.;Carvalho, H. B.
我们的目的是采用客观方法作为参考，为主观评估儿科人群体力活动强度和持续时间的先验假设和样本量提供证据。我们检索了电子数据库、参考文献列表和作者数据库。合并相关系数作为一致性估计值的指标。我们从89项符合纳入标准的研究中发现了183项一致性分析（94.5%基于相关系数）。我们确定了四个身体活动参数解决强度和两个参数解决持续时间。仅通过问卷调查来测量侧重于强度的身体活动参数，与心率监测器相比，通过中度到剧烈的身体活动实现了最佳相关性。此外，通过日记或日志测量时，总体力活动持续时间与加速度计的相关性比通过问卷测量时更强。在这两种情况下，相关性都是中等的。样本量在50至99名受试者之间的研究显示，测量结果在幅度和解释方面都是稳定的。我们的研究结果表明，评估体力活动强度和持续时间的主观和客观方法之间的协议是弱到中度。此外，50 - 99例受试者的样本量提供了方法之间稳定的一致性估计值。
We aimed to provide evidence for an a priori hypothesis and sample size for subjectively assessing physical activity intensity and duration in paediatric population, adopting objective methods as the reference. We searched electronic databases, reference lists and author databases. Correlation coefficients were pooled as an indicator of agreement estimates. We found 183 agreement analyses (94.5% based on correlation coefficients) from 89 studies that met our inclusion criteria. We identified four physical activity parameters addressing intensity and two parameters addressing duration. The physical activity parameters focusing on intensity were measured only by questionnaires, and the best correlation was achieved by moderate-to-vigorous physical activity compared with a heart rate monitor. In addition, total physical activity duration had a stronger correlation with an accelerometer when measured by diaries or logs than when measured by questionnaires. In both cases, the correlation was moderate. Studies with sample sizes between 50 and 99 subjects showed measurements that were stable in both magnitude and interpretation. Our findings suggest that the agreement between subjective and objective methods for assessing physical activity intensity and duration is weak to moderate. Furthermore, sample sizes ranging from 50 to 99 subjects provide stable agreement estimates between methods.