老年人使用问卷能否准确测量体力活动强度？

Can the intensity of physical activity be accurately measured in older adults using questionnaires?

机构信息

UC Research Institute for Sport and Exercise, University of Canberra, Australia; Discipline of Sport and Exercise Science, Faculty of Health, University of Canberra, Australia.

出版信息

J Sci Med Sport. 2019 Jul;22(7):803-807. doi: 10.1016/j.jsams.2019.01.004. Epub 2019 Jan 10.

DOI:10.1016/j.jsams.2019.01.004

PMID:30665754

Abstract

OBJECTIVES

This study assessed the accuracy of two questionnaires for measuring the duration of physical activity (PA) by intensity compared to an objective measure in older adults.

DESIGN

Cross-sectional observation METHODS: A total of 169 (female=43.8%) participants aged 73-78 years (mean: 75.1 y; SD: 1.3) wore a SenseWear™ Armband (SWA) for seven-days and reported the duration of PA by intensity with a Physical Activity Recall (PAR) questionnaire and the Active Australia Survey (AAS). In addition, the duration of moderate-to-vigorous-PA (MVPA) and overall active time, weighted for intensity (Total PA; MET: min/week) was assessed. Univariate general linear models were used to compare the questionnaire and SWA measures of PA while controlling for age, sex and education.

RESULTS

The PAR was associated with SWA moderate intensity PA (b=0.19; 95% CI 0.03-0.35), MVPA (b=0.19; 95% CI 0.02-0.37) and Total PA (b=0.33; 95% CI 0.11-0.55). Although significant correlations were present, the models explained a small proportion of the variance in the SWA variables. The AAS was not associated with the SWA for any PA outcome. There was also significant under-reporting of PA duration for both questionnaires in comparison to the SWA.

CONCLUSIONS

The PAR questionnaire may be suitable for determining the effect of greater levels of PA on health outcomes. However, neither questionnaire can be considered valid in determining the duration of PA divided by intensity. In addition, questionnaire and objectively measured PA are not equivalent and absolute measures of PA derived from questionnaires should be interpreted with caution.

摘要

目的

本研究评估了两种问卷在测量老年人不同强度体力活动（PA）持续时间方面的准确性，将其与客观测量进行比较。

设计

横断面观察研究。

方法

共有 169 名（女性=43.8%）年龄在 73-78 岁（平均：75.1 岁；标准差：1.3 岁）的参与者佩戴 SenseWear™臂带（SWA）七天，并使用体力活动回忆（PAR）问卷和澳大利亚活跃调查（AAS）报告 PA 的持续时间。此外，还评估了中等至剧烈强度体力活动（MVPA）和总活跃时间的强度加权（总 PA；MET：min/周）。使用单变量一般线性模型来比较问卷和 SWA 的 PA 测量值，同时控制年龄、性别和教育程度。

结果

PAR 与 SWA 中度强度 PA（b=0.19；95%置信区间 0.03-0.35）、MVPA（b=0.19；95%置信区间 0.02-0.37）和总 PA（b=0.33；95%置信区间 0.11-0.55）相关。尽管存在显著相关性，但模型仅解释了 SWA 变量中一小部分的方差。AAS 与任何 PA 结果均无相关性。与 SWA 相比，两个问卷均存在 PA 持续时间的显著低估。