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Do children take the same number of steps every day?

Wickel, Eric E., Eisenmann, Joey C., Pangrazi, Robert P., Graser, Susan V., Raustorp, Anders, Tomson, L. Michaud, & Cuddihy, Thomas F. (2007) Do children take the same number of steps every day? American Journal of Human Biology, 19(4), pp. 537-543.

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Abstract

The purpose of this study was to examine the day-to-day variability in pedometer-assessed physical activity (steps/day). A total of 1,443 children aged 6-12 years from the United States (195 boys, 254 girls), Sweden (257 boys, 252 girls), and Australia (229 boys, 256 girls) wore a pedometer for 4 consecutive weekdays. Repeated measures analysis of variance was used to examine daily differences in steps/day and the coefficient of variation (CV) was calculated for each individual to describe the day-to-day variability. Overall, mean steps/day were higher among boys (14,698 ± 3,373 steps/day) than girls (12,086 ± 2,929 steps/day). Significant differences were found between the 4 monitoring days for the entire sample; however, the absolute mean differences were small (55-958 steps) with an overall effect size of 0.01. This trend was apparent regardless of age, gender, and country. Individual CVs ranged from 2 to 88% and the overall mean CV approximated 22%. An age-related increase in the mean CV was observed between 6- and 12-year-old children. The age × gender × country interaction was not significant (P > 0.05). These findings have implications toward the proper design, analysis, and interpretation of studies regarding physical activity among children. Beyond this aspect, our results lend insight into potential age-related biological mechanisms that may also influence daily levels and patterns of physical activity. Am. J. Hum. Biol. 19:537-543, 2007

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10 citations in Scopus
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7 citations in Web of Science®

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ID Code: 10428
Item Type: Journal Article
Additional Information: For more information, please refer to the journal's website (see hypertext link) or contact the author.
DOI: 10.1002/ajhb.20613
ISSN: 1042-0533, 1520-6300
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > HUMAN MOVEMENT AND SPORTS SCIENCE (110600)
Divisions: Current > Research Centres > Centre for Health Research
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2007 John Wiley & Sons
Deposited On: 25 Oct 2007
Last Modified: 29 Feb 2012 23:37

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