Validity of the International Physical Activity Questionnaire (IPAQ) for assessing moderate-to-vigorous physical activity and sedentary behaviour of older adults in the United Kingdom
Validity of the International Physical Activity Questionnaire (IPAQ) for assessing moderate-to-vigorous physical activity and sedentary behaviour of older adults in the United Kingdom
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DOI：
10.1186/s12874-018-0642-3
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发表时间：
2018-12-22
影响因子：
4
通讯作者：
Hunter, Ruth F.
中科院分区：
文献类型：
--
作者：
Cleland, Claire;Ferguson, Sara;Hunter, Ruth F.
背景为了准确地测量和监测老年人的中度到剧烈的身体活动（MVPA）和久坐行为（SB）的水平，需要具有成本效益和有效的仪器。到目前为止，国际体力活动问卷（IPAQ）尚未在英国老年人（60岁以上）中得到验证。目前的研究旨在测试的有效性IPAQ在一组老年人的MVPA和SB.MethodsParticipants穿着Actigraph GT 3X+连续7天，并在显示器佩戴参与者被要求完成IPAQ。统计分析包括：Kolmogorov-Smirnov检验描述性分析;斯皮尔曼的ρ系数和Bland-Altman analysis.ResultsA样本的253名老年人招募（平均年龄71.8岁（SD 6.6）和57%的男性）。总共有226个具有MVPA的有效加速度计和IPAQ数据，228个具有SB的有效数据。结果显示IPAQ对于MVPA具有中等/可接受的有效性水平（r=.430-.557）。对于SB，在工作日（r= 0.702）和周末（r= 0.257）的有效性公平水平的有效性有实质性的水平。Bland-Altman分析显示，大多数参与者倾向于低估MVPA和SB的固有测量误差。在完成IPAQ时报告他们的MVPA和SB水平，并且随着平均值的增加，高于平均值的线性关系显示从低到高报告的误差。监测研究比较国家内或国家之间的群体，而不是在个人的基础上。研究结果还表明，IPAQ有效性分数可以通过提供老年人每天可能做的活动类型的额外细节来加强，提高回忆;并且可能还需要提供一个典型活动的日常分解的例子。这可能使老年人能够更充分地理解他们在清醒时间内可能花费的活动，坐着和/或躺着的时间量。
BackgroundIn order to accurately measure and monitor levels of moderate-to-vigorous physical activity (MVPA) and sedentary behaviour (SB) in older adults, cost efficient and valid instruments are required. To date, the International Physical Activity Questionnaire (IPAQ) has not been validated with older adults (aged 60years plus) in the United Kingdom. The current study aimed to test the validity of the IPAQ in a group of older adults for both MVPA and SB.MethodsParticipants wore an Actigraph GT3X+ for seven consecutive days and following the monitor wear participants were asked to complete the IPAQ. Statistical analysis included: Kolmogorov-Smirnov tests; descriptive analyses; Spearman's rho coefficients; and Bland-Altman analyses.ResultsA sample of 253 older adults were recruited (mean age 71.8 years (SD 6.6) and 57% male). In total, 226 had valid accelerometer and IPAQ data for MVPA and 228 had valid data for SB. Results showed the IPAQ had moderate/acceptable levels of validity (r=.430-.557) for MVPA. For SB, there was substantial levels of validity on weekdays (r=.702) and fair levels of validity (r=.257) on weekend days. Bland-Altman analysis showed inherent measurement error with the majority of participants tending to under-report both MVPA and SB. Results showed the majority of older adult's under-report their level of MVPA and SB when completing the IPAQ and the linear relationship above the mean shows an error from under to over reporting as the mean increases.ConclusionsFindings from the current study suggest that the IPAQ is better implemented in larger surveillance studies comparing groups within or between countries rather than on an individual basis. Findings also suggest that the IPAQ validity scores could be strengthened by providing additional detail of types of activities older adults might do on a daily basis, improving recall; and it may also be necessary to provide an example of a daily break down of typical activities performed. This may enable older adults to more fully comprehend the amount of time they may spend active, sitting and/or lying during waking hours.