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Canadian children's and youth's pedometer-determined steps/day, parent-reported TV watching time, and overweight/obesity: The CANPLAY Surveillance Study

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Tudor-Locke, Catrine, Craig, Cora L, Cameron, Christine, Griffiths, Joseph M·2011·International Journal of Behavioral Nutrition and Physical Activity

Abstract

BACKGROUND: This study examines associations between pedometer-determined steps/day and parent-reported child's Body Mass Index (BMI) and time typically spent watching television between school and dinner. METHODS: Young people (aged 5-19 years) were recruited through their parents by random digit dialling and mailed a data collection package. Information on height and weight and time spent watching television between school and dinner on a typical school day was collected from parents. In total, 5949 boys and 5709 girls reported daily steps. BMI was categorized as overweight or obese using Cole's cut points. Participants wore pedometers for 7 days and logged daily steps. The odds of being overweight and obese by steps/day and parent-reported time spent television watching were estimated using logistic regression for complex samples. RESULTS: Girls had a lower median steps/day (10682 versus 11059 for boys) and also a narrower variation in steps/day (interquartile range, 4410 versus 5309 for boys). 11% of children aged 5-19 years were classified as obese; 17% of boys and girls were overweight. Both boys and girls watched, on average, < 40 minutes of television between school and dinner on school days. Adjusting for child's age and sex and parental education, the odds of a child being obese decreased by 20% for every extra 3000 steps/day and increased by 21% for every 30 minutes of television watching. There was no association of being overweight with steps/day, however the odds of being overweight increased by 8% for every 30 minutes of additional time spent watching television between school and dinner on a typical school day. DISCUSSION: Television viewing is the more prominent factor in terms of predicting overweight, and it contributes to obesity, but steps/day attenuates the association between television viewing and obesity, and therefore can be considered protective against obesity. In addition to replacing opportunities for active alternative behaviours, exposure to television might also impact body weight by promoting excess energy intake. CONCLUSIONS: In this large nationally representative sample, pedometer-determined steps/day was associated with reduced odds of being obese (but not overweight) whereas each parent-reported hour spent watching television between school and dinner increased the odds of both overweight and obesity.

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  • In the CANPLAY surveillance study, girls took fewer steps per day than boys (10,682 vs. 11,059) and had less variability in daily step counts.

    “Girls were found to take fewer steps per day than boys (10,682 vs. 11,059, respectively), and to have less variability in daily step counts [59].”

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  1. Nielsen reports television tuning remains at record levels digital video recorders grow in popularity http://www.nielsen.com/us/en/insights/press-room/2007/Nielsen_Reports_Television_Tuning_Remains_at_Record_Levels.html

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Authors
Tudor-Locke, C., Craig, C. L., Cameron, C., & Griffiths, J. M.
Affiliations
  • The University of Sydney (AU)
  • Canadian Fitness and Lifestyle Research Institute (CA)
Venue
International Journal of Behavioral Nutrition and Physical Activity
Published
2011
Volume
8
Issue
1
Pages
66
ISSN
1479-5868 (ISSN-L)
OpenAlex
W1969467101
Cited by
57
References
27
Citations by year
2025: 1 · 2024: 1 · 2023: 3 · 2022: 2 · 2021: 3 · 2020: 3 · 2019: 2 · 2018: 5 · 2017: 4 · 2016: 8 · 2015: 1 · 2014: 8 · 2013: 10 · 2012: 5
FWCI
7.53
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • International Journal of Behavioral Nutrition and Physical Activity (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Public Health Agency of Canada
  • York University
  • European Commission (2006120, Ref: 2006120)
  • Public Health Agency
  • Hjärt-Lungfonden (20090635)
  • Karolinska Institutet
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Health Sciences › Medicine › Oncology › Cancer Risks and Factors
Keywords
children's physical activity, daily step count, television viewing, childhood obesity, overweight, body mass index, sedentary behavior, sex differences
MeSH terms
Adolescent, Age Factors, Body Weight, Canada, Child, Child Behavior, Child, Preschool, Cross-Sectional Studies, Data Collection, Educational Status, Female, Humans, Interviews as Topic, Life Style, Male, Motor Activity, Obesity, Parents, Recreation, Risk Factors, Television, Time Factors, Body Mass Index, Logistic Models, Young Adult

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