Cited by 70Physical Activity and HealthObesity, Physical Activity, DietSports and Physical Education Studies

Changes in time-segment specific physical activity between ages 10 and 14 years: A longitudinal observational study

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Brooke, Hannah L., Atkin, Andrew J., Corder, Kirsten, Ekelund, Ulf, van Sluijs, Esther M.F.·2016·Journal of Science and Medicine in Sport

Abstract

OBJECTIVES: Describe (1) time-segment specific changes in physical activity (PA) into adolescence, (2) differences in change in PA between specific time-segments (weekdays-weekends, in-school-out-of-school, out-of-school-weekends, lesson-time-lunch-time), and (3) associations of change in time-segment specific with overall PA. DESIGN: Longitudinal observational study (4-year follow-up). METHODS: Children from the SPEEDY study (n=769, 42% boys) had PA measured by accelerometer for at least three days at ages 10.2±0.3, 11.2±0.3 and 14.3±0.3years. Changes in moderate-to-vigorous PA (ΔMVPA, minutes ≥2000counts/minute [cpm]) and total PA (ΔTPA, average cpm) during weekdays, weekends, in-school, out-of-school, lesson-times and lunch-times, were tested using three level (age, individual, school) mixed-effects linear regression. Differences in ΔMVPA/ΔTPA between time-segments were tested using time-segment×age interaction terms. Associations of four-year time-segment specific ΔMVPA/ΔTPA with four-year overall ΔMVPA/ΔTPA were tested using two level (time-segment specific ΔMVPA/ΔTPA, school) mixed-effects linear regression. RESULTS: MVPA and TPA declined in all time-segments, except lesson-time MVPA. Annual ΔMVPA and, for boys only, ΔTPA was greater on weekends than weekdays (beta±SE for interaction term: boys, -3.53±0.83min, -29.64±7.64cpm; girls, -2.20±0.64min) and out-of-school (boys, -4.36±0.79min, -19.36±8.46cpm; girls, -2.44±0.63min). ΔMVPA and ΔTPA during lunch-time was greater than during lesson-time (boys, -0.96±0.20min, -36.43±6.55cpm; girls, -0.90±0.13min, -38.72±4.40cpm). ΔTPA was greater out-of-school than in-school (boys, -19.89±6.71cpm; girls, -18.46±6.51cpm). For all time-segments, four-year ΔMVPA/ΔTPA was positively associated with four-year overall ΔMVPA/ΔTPA (all p<0.042), except for girl's in-school and lunch-time TPA. CONCLUSIONS: Interventions focused on PA maintenance could target all time-segments, but weekends and out-of-school may be particularly advantageous due to the relatively large declines observed.

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Authors
Brooke, H. L., Atkin, A. J., Corder, K., Ekelund, U., & van Sluijs, E. M. F.
Affiliations
University of Cambridge (GB)
Venue
Journal of Science and Medicine in Sport
Publisher
Elsevier BV
Published
2016-01
Volume
19
Issue
1
Pages
29-34
ISSN
1440-2440 (ISSN-L)
OpenAlex
W2000445219
Cited by
70
References
31
Citations by year
2025: 2 · 2024: 7 · 2023: 2 · 2022: 2 · 2021: 6 · 2020: 10 · 2019: 12 · 2018: 6 · 2017: 8 · 2016: 11 · 2015: 4
FWCI
5.10
Type
journal article
Language
en
Open access
Locations
  • Journal of science and medicine in sport (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • UEA Digital Repository (University of East Anglia) (acceptedVersion)
  • NORA - Norwegian Open Research Archives (submittedVersion, other-oa)
  • Apollo (University of Cambridge) (submittedVersion, cc-by)
Funders
  • National Prevention Research Initiative
  • British Heart Foundation
  • Cancer Research UK
  • Department of Health
  • Diabetes UK
  • Economic and Social Research Council
  • Medical Research Council
  • Health and Social Care Research and Development Office for the Northern Ireland
  • Chief Scientist Office
  • Scottish Government Health Directorates
  • Welsh Assembly Government
  • World Cancer Research Fund
  • Centre for Diet and Activity Research (CEDAR)
  • National Institute for Health Research
  • Wellcome Trust
Topics
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
  • Social Sciences › Life-span and Life-course Studies › Sports and Physical Education Studies
Keywords
physical activity, moderate-to-vigorous physical activity, adolescence, children, weekday and weekend differences, sex differences, accelerometer-measured activity, physical activity decline, school-based physical activity promotion, school lunch break
MeSH terms
Adolescent, Adolescent Behavior, Child, Child Behavior, Female, Humans, Leisure Activities, Longitudinal Studies, Male, Exercise, Accelerometry

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