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McCrorie PR, Duncan E, Granat MH, et al. Seasonal variation in the distribution of daily stepping in 11-13 year old school children. Int J Exerc Sci. 2015;8(4)
McCrorie, P. R., Duncan, E., Granat, M. H., & Stansfield, B. W. (2015). Seasonal variation in the distribution of daily stepping in 11-13 year old school children. International journal of exercise science, 8(4), .
McCrorie, P R W, et al. "Seasonal variation in the distribution of daily stepping in 11-13 year old school children." International journal of exercise science vol. 8,4 (2015).
McCrorie PR, Duncan E, Granat MH, Stansfield BW. Seasonal variation in the distribution of daily stepping in 11-13 year old school children. Int J Exerc Sci. 2015;8(4). PMID: 26550098; PMCID: PMC4632195.
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Int J Exerc Sci. 2015;8(4).

Seasonal variation in the distribution of daily stepping in 11-13 year old school children.

International journal of exercise science

P R W McCrorie, E Duncan, M H Granat, B W Stansfield

Affiliations

  1. MRC/CSO Social and Public Health Sciences Unit, University of Glasgow.
  2. School of health and life Sciences, Glasgow Caledonian University.
  3. School of Health Sciences, University of Salford.
  4. School of Health and life Sciences, Glasgow Caledonian University.

PMID: 26550098 PMCID: PMC4632195

Abstract

PURPOSE: Seasonality studies in adolescent's physical activity (PA) tend to report total PA (e.g. steps/day) rather than more specific detail such as steps/hour. This study compared the detailed changes in PA between seasons.

METHODS: Thirty three adolescents (baseline age 12.2 ± 0.3y) wore the activPAL activity monitor for 8 days on two occasions.

RESULTS: Steps/day were higher in summer (Mdn = 12,879) than winter (Mdn = 10,512), p<.001. Steps/hour were significantly higher in summer compared to winter between 17:00 and 21:00 (p<. 044). No steps/day differences were found between boys and girls at either time point (p>.05), however, boys had significantly higher step counts in summer between '13:00-14:00' (p=.023), '19:00-20:00' (p=.032) and '20:00-21:00' (p=.023).

CONCLUSION: Total steps/day masked sex differences within specific hours of the day, particularly evening times. Detailed daily patterns of PA are required to fully understand differences between sexes and across seasons.

Keywords: Accelerometers; Adolescent; Physical Activity; Seasons

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