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Multicenter Study
. 2018 Dec 22;18(1):176.
doi: 10.1186/s12874-018-0642-3.

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

Claire Cleland  1 , Sara Ferguson  2 , Geraint Ellis  2 , Ruth F Hunter  3
Affiliations
Multicenter Study

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

Claire Cleland et al. BMC Med Res Methodol. .

Abstract

Background: In 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 60 years 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.

Methods: Participants 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.

Results: A 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.

Conclusions: Findings 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.

Keywords: Accelerometry; IPAQ; International physical activity questionnaire; MVPA; Moderate-to-vigorous physical activity; Objective measurement; Physical activity; Sedentary behaviour; Self-report; Validity.

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Conflict of interest statement

Ethics approval and consent to participate

Ethical approval was obtained from the School of Medicine Dentistry and Biomedical Sciences Research Ethics Committee, Queen’s University Belfast (reference number: 16.30v2). Each participant provided written informed consent to participate in the current study for accelerometry wear and survey completion.

Consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Figures

Fig. 1
Fig. 1
Flow Diagram of Participant Recruitment
Fig. 2
Fig. 2
Bland-Altman plot for moderate-to-vigorous physical activity
Fig. 3
Fig. 3
Bland-Altman plot for sedentary behaviour – week day
Fig. 4
Fig. 4
Bland-Altman plot for sedentary behaviour – weekend day
See this image and copyright information in PMC

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