Age-related patterns of vigorous-intensity physical activity in youth:The International Children's Accelerometry Database

Corder, Kirsten, Sharp, Stephen J, Atkin, Andrew J ORCID:, Andersen, Lars B, Cardon, Greet, Page, Angie, Davey, Rachel, Grøntved, Anders, Hallal, Pedro C, Janz, Kathleen F, Kordas, Katarzyna, Kriemler, Susi, Puder, Jardena J, Sardinha, Luis B, Ekelund, Ulf and van Sluijs, Esther M F and International Children's Accelerometry Database (ICAD) Collaborators (2016) Age-related patterns of vigorous-intensity physical activity in youth:The International Children's Accelerometry Database. Preventive Medicine Reports, 4. pp. 17-22. ISSN 2211-3355

[thumbnail of Published manuscript]
PDF (Published manuscript) - Published Version
Available under License Creative Commons Attribution.

Download (268kB) | Preview


Physical activity declines during youth but most evidence reports on combined moderate and vigorous-intensity physical activity. We investigated how vigorous-intensity activity varies with age. Cross-sectional data from 24,025 participants (5.0-18.0 y; from 20 studies in 10 countries obtained 2008-2010) providing ≥ 1 day accelerometer data (International Children's Accelerometry Database (ICAD)). Linear regression was used to investigate age-related patterns in vigorous-intensity activity; models included age (exposure), adjustments for monitor wear-time and study. Moderate-intensity activity was examined for comparison. Interactions were used to investigate whether the age/vigorous-activity association differed by sex, weight status, ethnicity, maternal education and region.  A 6.9% (95% CI 6.2, 7.5) relative reduction in mean vigorous-intensity activity with every year of age was observed; for moderate activity the relative reduction was 6.0% (5.6%, 6.4%). The age-related decrease in vigorous-intensity activity remained after adjustment for moderate activity. A larger age-related decrease in vigorous activity was observed for girls (- 10.7%) versus boys (- 2.9%), non-white (- 12.9% to - 9.4%) versus white individuals (- 6.1%), lowest maternal education (high school (- 2.0%)) versus college/university (ns) and for overweight/obese (- 6.1%) versus healthy-weight participants (- 8.1%). In addition to larger annual decreases in vigorous-intensity activity, overweight/obese individuals, girls and North Americans had comparatively lower average vigorous-intensity activity at 5.0-5.9 y.  Age-related declines in vigorous-intensity activity during youth appear relatively greater than those of moderate activity. However, due to a higher baseline, absolute moderate-intensity activity decreases more than vigorous. Overweight/obese individuals, girls, and North Americans appear especially in need of vigorous-intensity activity promotion due to low levels at 5.0-5.9 y and larger negative annual differences.

Item Type: Article
Uncontrolled Keywords: icad,motor activity,child,adolescent,epidemiology
Faculty \ School: Faculty of Medicine and Health Sciences > School of Health Sciences
UEA Research Groups: Faculty of Medicine and Health Sciences > Research Groups > Health Promotion
Faculty of Science > Research Groups > Norwich Epidemiology Centre
Faculty of Medicine and Health Sciences > Research Groups > Norwich Epidemiology Centre
Depositing User: Pure Connector
Date Deposited: 08 Feb 2017 04:21
Last Modified: 19 Apr 2023 19:33
DOI: 10.1016/j.pmedr.2016.05.006

Actions (login required)

View Item View Item