dc.contributor.author | Limb, Elizabeth S. | |
dc.contributor.author | Ahmad, Shaleen | |
dc.contributor.author | Cook, Derek G. | |
dc.contributor.author | Kerry, Sally M. | |
dc.contributor.author | Ekelund, Ulf | |
dc.contributor.author | Whincup, Peter H. | |
dc.contributor.author | Victor, Christina R. | |
dc.contributor.author | Iliffe, Steve | |
dc.contributor.author | Ussher, Michael | |
dc.contributor.author | Fox-Rushby, Julia | |
dc.contributor.author | Furness, Cheryl | |
dc.contributor.author | Ibison, Judith | |
dc.contributor.author | DeWilde, Stephen | |
dc.contributor.author | Harris, Tess | |
dc.date.accessioned | 2020-03-19T09:23:49Z | |
dc.date.available | 2020-03-19T09:23:49Z | |
dc.date.created | 2019-06-12T14:03:31Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | International Journal of Behavioral Nutrition and Physical Activity. 2019, 16, 10. | en_US |
dc.identifier.issn | 1479-5868 | |
dc.identifier.uri | https://hdl.handle.net/11250/2647501 | |
dc.description | This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. | en_US |
dc.description.abstract | Background: Few trials have compared estimates of change in physical activity (PA) levels using self-reported and objective PA measures when evaluating trial outcomes. The PACE-UP trial offered the opportunity to assess this, using the self-administered International Physical Activity Questionnaire (IPAQ) and waist-worn accelerometry.
Methods: The PACE-UP trial (N = 1023) compared usual care (n = 338) with two pedometer-based walking interventions, by post (n = 339) or with nurse support (n = 346). Participants wore an accelerometer at baseline and 12 months and completed IPAQ for the same 7-day periods. Main outcomes were weekly minutes, all in ≥10 min bouts as per UK PA guidelines of: i) accelerometer moderate-to-vigorous PA (Acc-MVPA) ii) IPAQ moderate+vigorous PA (IPAQ-MVPA) and iii) IPAQ walking (IPAQ-Walk). For each outcome, 12 month values were regressed on baseline to estimate change.
Results: Analyses were restricted to 655 (64%) participants who provided data on all outcomes at baseline and 12 months. Both intervention groups significantly increased their accelerometry MVPA minutes/week compared with control: postal group 42 (95% CI 22, 61), nurse group 43 (95% CI 24, 63). IPAQ-Walk minutes/week also increased: postal 57 (95% CI 2, 112), nurse 43 (95% CI -11, 97) but IPAQ-MVPA minutes/week showed non-significant decreases: postal -11 (95% CI -65, 42), nurse -34 (95% CI -87, 19).
Conclusions: Our results demonstrate the necessity of using a questionnaire focussing on the activities being altered, as with IPAQ-Walk questions. Even then, the change in PA was estimated with far less precision than with accelerometry. Accelerometry is preferred to self-report measurement, minimising bias and improving precision when assessing effects of a walking intervention. | en_US |
dc.language.iso | eng | en_US |
dc.subject | walking | en_US |
dc.subject | intervention | en_US |
dc.subject | primary care | en_US |
dc.subject | MVPA | en_US |
dc.subject | accelerometry | en_US |
dc.subject | IPAQ | en_US |
dc.subject | GPPAQ | en_US |
dc.title | Measuring change in trials of physical activity interventions: A comparison of self-report questionnaire and accelerometry within the PACE-UP trial 11 Medical and Health Sciences 1117 Public Health and Health Services | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © The Author(s). 2019 | en_US |
dc.source.pagenumber | 11 | en_US |
dc.source.volume | 16 | en_US |
dc.source.journal | International Journal of Behavioral Nutrition and Physical Activity | en_US |
dc.identifier.doi | 10.1186/s12966-018-0762-5 | |
dc.identifier.cristin | 1704373 | |
dc.description.localcode | Seksjon for idrettsmedisinske fag / Department of Sports Medicine | en_US |
cristin.unitcode | 150,34,0,0 | |
cristin.unitname | Seksjon for idrettsmedisinske fag | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |