Characteristics of a protocol to collect objective physical activity/sedentary behaviour data in a large study : seniors USP (understanding sedentary patterns)

Dall, PM; Skelton, DA; Dontje, ML; Coulter, EH; Stewart, S; Cox, SR; Shaw, RJ; Čukić, I; Fitzsimons, CF; Greig, CA; Granat, MH; Der, G; Deary, IJ; Chastin, SFM

doi:10.1123/jmpb.2017-0004

Characteristics of a protocol to collect objective physical activity/sedentary behaviour data in a large study : seniors USP (understanding sedentary patterns)

Dall, PM; Skelton, DA; Dontje, ML; Coulter, EH; Stewart, S; Cox, SR; Shaw, RJ; Čukić, I; Fitzsimons, CF; Greig, CA; Granat, MH; Der, G; Deary, IJ; Chastin, SFM

Authors

PM Dall

DA Skelton

ML Dontje

EH Coulter

S Stewart

SR Cox

RJ Shaw

I Čukić

CF Fitzsimons

CA Greig

Prof Malcolm Granat M.H.Granat@salford.ac.uk
Professor

G Der

IJ Deary

SFM Chastin

Abstract

The Seniors USP study measured sedentary behaviour (activPAL3, 9 day wear) in older adults. The measurement protocol had three key characteristics: enabling 24-hour wear (monitor location, waterproofing); minimising data loss (reducing monitor failure, staff training, communication); and quality assurance (removal by researcher, confidence about wear). Two monitors were not returned; 91% (n=700) of returned monitors had 7 valid days of data. Sources of data loss included monitor failure (n=11), exclusion after quality assurance (n=5), early removal for skin irritation (n=8) or procedural errors (n=10). Objective measurement of physical activity and sedentary behaviour in large studies requires decisional trade-offs between data quantity (collecting representative data) and utility (derived outcomes that reflect actual behaviour).

Keywords: methodology; accelerometer; adherence; data loss; activPAL; posture

Citation

Dall, P., Skelton, D., Dontje, M., Coulter, E., Stewart, S., Cox, S., …Chastin, S. (2018). Characteristics of a protocol to collect objective physical activity/sedentary behaviour data in a large study : seniors USP (understanding sedentary patterns). Journal for the Measurement of Physical Behaviour, 1(1), 26-31. https://doi.org/10.1123/jmpb.2017-0004

Journal Article Type	Article
Acceptance Date	Mar 28, 2018
Online Publication Date	Apr 30, 2018
Publication Date	Apr 30, 2018
Deposit Date	May 3, 2018
Publicly Available Date	May 3, 2018
Journal	Journal for the Measurement of Physical Behaviour
Print ISSN	2575-6605
Electronic ISSN	2575-6613
Publisher	Human Kinetics
Volume	1
Issue	1
Pages	26-31
DOI	https://doi.org/10.1123/jmpb.2017-0004
Publisher URL	http://dx.doi.org/10.1123/jmpb.2017-0004
Related Public URLs	https://journals.humankinetics.com/journal/jmpb