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
Philippa DallSfm 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).

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Citations

Nov 11, 2019·European Journal of Applied Physiology·Aye C PaingSebastien F M Chastin
Aug 7, 2020·Scandinavian Journal of Medicine & Science in Sports·Rachel CooperMark Hamer
Aug 28, 2020·Diabetic Medicine : a Journal of the British Diabetic Association·B H HuangE Stamatakis
May 1, 2020·Journal of Epidemiology and Community Health·Mark Hamer, Emmanuel Stamatakis
Jan 8, 2021·BMJ Open Sport & Exercise Medicine·Matthew L StevensEmmanuel Stamatakis

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