Cited by 64Physical Activity and HealthObesity, Physical Activity, DietChildren's Physical and Motor Development

Seasonal changes in children's physical activity: an examination of group changes, intra-individual variability and consistency in activity pattern across season

Rowlands, Ann V., Pilgrim, Emma L., Eston, Roger G.·2009·Annals of Human Biology

Abstract

BACKGROUND: Components of activity that are more variable over time may be more susceptible to manipulation in activity interventions. AIM: The present study examined variability and consistency of components of children's activity across season. SUBJECTS AND METHODS: Sixty-four 9-11-year-old children wore an accelerometer for 6 days during winter and summer. Activity bouts (>or=4 s) greater than light (>or=LIGHT), moderate (>or=MOD) and vigorous (>or=VIG) intensity were recorded. RESULTS: Intra-individual variability of the activity components across season was greater for bout frequency (CV: >or=LIGHT = 6.6-9.9%, >or=MOD = 10.7-16.1%, >or=VIG = 17.0-26.8%) than bout intensity or duration (CV: >or=LIGHT = 3.4-7.4%, >or=MOD = 3.6-7.8%, >or=VIG = 4.2-10.0%, p<0.05) and for the frequency of >or=VIG bouts compared to the frequency of >or=LIGHT and >or=MOD bouts (p<0.05). All components of the activity pattern tended to track consistently when assessing >or=LIGHT and >or=MOD bouts (intra-class correlations (ICC) = 0.47-83, p<0.05), >or=VIG bouts in boys (ICC = 0.69-0.77, p<0.01) and frequency of >or=VIG bouts in girls (ICC = 0.82, p<0.01). CONCLUSIONS: Bout frequency was the most variable component of activity across season. However, children tended to maintain their rank for bout frequency. It would be of interest to investigate whether bout frequency can be manipulated in an activity intervention.

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Crossref · 10.1080/03014460902824220

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Authors
Rowlands, A. V., Pilgrim, E. L., & Eston, R. G.
Affiliations
University of Exeter (GB)
Corresponding author
Rowlands, Ann V.
Venue
Annals of Human Biology
Published
2009-01
Volume
36
Issue
4
Pages
363-378
ISSN
  • 0301-4460 (ISSN-L)
  • 1464-5033
OpenAlex
W2117569008
Cited by
64
References
41
Citations by year
2025: 2 · 2023: 2 · 2022: 2 · 2021: 5 · 2020: 2 · 2019: 3 · 2017: 1 · 2016: 4 · 2015: 5 · 2014: 8 · 2013: 9 · 2012: 5
FWCI
4.65
Type
journal article
Language
en
Open access
closed
Locations
  • Annals of Human Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
  • Social Sciences › Psychology › Developmental and Educational Psychology › Children's Physical and Motor Development
Keywords
children's physical activity, seasonal variation, within-person variability, high-intensity exercise, accelerometer-measured activity, children aged 9-11
MeSH terms
Child, Female, Humans, Male, Seasons, Sex Characteristics, Time Factors, Exercise

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