Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/17350
Title: | Measuring change in trials of physical activity interventions: a comparison of self-report questionnaire and accelerometry within the PACE-UP trial |
Authors: | Limb, E Ahmad, S Cook, D Kerry, S Ekelund, U Whincup, P Victor, C Iliffe, S Ussher, M Fox-Rushby, J Furness, C Ibison, J De Wilde, S Harris, T |
Keywords: | Walking;Intervention;Primary Care;MVPA;Accelerometry;IPAQ;GPPAQ |
Issue Date: | 2018 |
Publisher: | HUMAN KINETICS PUBL INC |
Citation: | JOURNAL OF PHYSICAL ACTIVITY & HEALTH, 2018, 15 (10), pp. S135 - S136 (2) |
Abstract: | Background: Few trials have compared estimates of change in physical activity (PA) levels using51 self-reported and objective PA measures when evaluating trial outcomes. The PACE-UP trial offered52 the opportunity to assess this, using the self-administered International Physical Activity53 Questionnaire (IPAQ) and waist-worn accelerometry.54 Methods: The PACE-UP trial (N=1023) compared usual care (n=338) with two pedometer-based55 Walking interventions, by post (n=339) or with nurse support (n=346). Participants wore an56 accelerometer at baseline and 12 months and completed IPAQ for the same 7-day periods. Main57 outcomes were weekly minutes, all in ≥10 minute bouts as per UK PA guidelines of: i) accelerometer 58 moderate-to-vigorous PA (Acc-MVPA) ii) IPAQ moderate + vigorous PA (IPAQ-MVPA) and iii)59 IPAQ walking (IPAQ-Walk). For each outcome, 12 month values were regressed on baseline to60 estimate change.61 Results: Analyses were restricted to 655 (64%) participants who provided data on all outcomes at62 baseline and 12 months. Both intervention groups significantlyincreased their accelerometryMVPA63 minutes/week compared with control: postal group 42 (95% CI 22, 61), nurse group 43 (95% CI 24,64 63). IPAQ-Walk minutes/week also increased: postal 57 (95% CI 2, 112), nurse 43 (95% CI -11, 97)65 butIPAQ-MVPAminutes/weekshowednon-significantdecreases:postal-11(95%CI-65,42),nurse66 -34 (95% CI -87, 19).67 Conclusions: Our results demonstrate the necessity of using a questionnaire focussing on the68 activities being altered, as with IPAQ-Walk questions. Even then, the change in PA was estimated69 with far less precision than with accelerometer. Accelerometry is preferred to self-report70 measurement, minimising bias and improving precision when assessing effects of a walking71 intervention. |
URI: | http://bura.brunel.ac.uk/handle/2438/17350 |
ISSN: | http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000446516100457&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=f12c8c83318cf2733e615e54d9ed7ad5 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000446516100457&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=f12c8c83318cf2733e615e54d9ed7ad5 1543-3080 1543-5474 |
Other Identifiers: | http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000446516100457&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=f12c8c83318cf2733e615e54d9ed7ad5 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000446516100457&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=f12c8c83318cf2733e615e54d9ed7ad5 |
Appears in Collections: | Dept of Health Sciences Theses |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Fulltext.pdf | 755.2 kB | Adobe PDF | View/Open |
Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.