Evidence map›Paper›PMID 41316462›Full record

ArticleJournal of activity, sedentary and sleep behaviors2025

Trajectories of children's physical activity volume and intensity across the school year: the Ready, Set, Move project.

Stuart J Fairclough, Lauren Clifford, Jordan Banks, Peter Edwards, Ayva-Mae Gilmour, Richard Tyler, Denver M Y Brown, Alex V Rowlands, Mhairi MacDonald

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In one paragraph

Article in Journal of activity, sedentary and sleep behaviors, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Stuart J FaircloughSport, Physical Activity, Health and Wellbeing Research Group, Department of Sport and Physical Activity, Edge Hill University, Ormskirk, UK. Stuart.Fairclough@edgehill.ac.uk.
Lauren CliffordThe Physical Activity Exchange, Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK.
Jordan BanksDivision of Health Research, Lancaster University, Lancaster, UK.
Peter EdwardsSport, Physical Activity, Health and Wellbeing Research Group, Department of Sport and Physical Activity, Edge Hill University, Ormskirk, UK.
Ayva-Mae GilmourSport, Physical Activity, Health and Wellbeing Research Group, Department of Sport and Physical Activity, Edge Hill University, Ormskirk, UK.
Richard TylerSport, Physical Activity, Health and Wellbeing Research Group, Department of Sport and Physical Activity, Edge Hill University, Ormskirk, UK.
Denver M Y BrownDepartment of Kinesiology, Kansas State University, Manhattan, KS, 66506, USA.
Alex V RowlandsAssessment of Movement Behaviours (AMBer) Group, Diabetes Research Centre, College of Life Sciences, University of Leicester, Leicester, UK.
Mhairi MacDonaldSport, Physical Activity, Health and Wellbeing Research Group, Department of Sport and Physical Activity, Edge Hill University, Ormskirk, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAverage acceleration (AvAcc) and intensity gradient (IG) are accelerometer metrics which when combined describe the volume and intensity distribution of physical activity, sedentary behaviour, and sleep across the 24-h cycle. Little is known about trajectories of children's AvAcc and IG over time on weekdays and weekends. This study describes school year trajectories of children's weekday and weekend AvAcc and IG.

methodsDuring 2023-24 249 children (8-9 years old; 51.4% girls) wore accelerometers for 24 h⋅day

resultsAim 1: There were significant increases in weekday AvAcc in Summer compared to Winter/Spring (β = 3.94, 95% CI = 1.20, 6.68) and Autumn (β = 4.43, 95% CI = 2.47, 6.40), but not IG. Weekend AvAcc and IG were relatively stable. Aim 2: Three cluster groupings of children were identified (Most Active, Somewhat Active (weekdays) / Active (weekends), and Least Active). Weekday AvAcc increased significantly from Winter/Spring to Summer in all groups (+ 3.6-4.6 mg, 95% CIs > 0) and from Autumn to Summer in the less active groups only (+ 5.2-5.8 mg, 95% CIs > 0). IG remained stable for the Most and Somewhat Active groups, with a significant increase from Autumn to Summer observed in the Least Active group (+ 0.05, 95% CI = 0.01-0.09). There were no significant within-cluster group changes in weekend AvAcc or IG, although the Least Active children had the most positive AvAcc and IG trajectories.

conclusionsWeekday physical activity volume but not intensity increased over the school year, while both dimensions of weekend activity had stable trajectories. Weekday and weekend cluster groups had distinct physical activity profiles which followed subtly different AvAcc and IG trajectories. The results reinforce the complementary insights provided by studying AvAcc and IG together and have implications for children's physical activity intervention programming.

Indexed as

24-h movement behavioursAccelerometerAverage accelerationIntensity gradientLongitudinalSeasonalWeekdayWeekend

Identifiers

PMID41316462
PMCPMC12764146

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LicenceCC BY-NC-ND
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.