Is the Canadian childhood obesity epidemic related to physical inactivity?
MS Tremblay, JD Willms - International journal of obesity, 2003 - nature.com
MS Tremblay, JD Willms
International journal of obesity, 2003•nature.comOBJECTIVE: This study examined the relation among children's physical activity, sedentary
behaviours, and body mass index (BMI), while controlling for sex, family structure, and
socioeconomic status. DESIGN: Epidemiological study examining the relations among
physical activity participation, sedentary behaviour (video game use and television
(TV)/video watching), and BMI on a nationally representative sample of Canadian children.
SUBJECTS: A representative sample of Canadian children aged 7–11 (N= 7216) from the …
behaviours, and body mass index (BMI), while controlling for sex, family structure, and
socioeconomic status. DESIGN: Epidemiological study examining the relations among
physical activity participation, sedentary behaviour (video game use and television
(TV)/video watching), and BMI on a nationally representative sample of Canadian children.
SUBJECTS: A representative sample of Canadian children aged 7–11 (N= 7216) from the …
Abstract
OBJECTIVE: This study examined the relation among children's physical activity, sedentary behaviours, and body mass index (BMI), while controlling for sex, family structure, and socioeconomic status.
DESIGN: Epidemiological study examining the relations among physical activity participation, sedentary behaviour (video game use and television (TV)/video watching), and BMI on a nationally representative sample of Canadian children.
SUBJECTS: A representative sample of Canadian children aged 7–11 (N= 7216) from the 1994 National Longitudinal Survey of Children and Youth was used in the analysis.
MEASUREMENTS: Physical activity and sport participation, sedentary behaviour (video game use and TV/video watching), and BMI measured by parental report.
RESULTS: Both organized and unorganized sport and physical activity are negatively associated with being overweight (10–24% reduced risk) or obese (23–43% reduced risk), while TV watching and video game use are risk factors for being overweight (17–44% increased risk) or obese (10–61% increased risk). Physical activity and sedentary behaviour partially account for the association of high socioeconomic status and two-parent family structure with the likelihood of being overweight or obese.
CONCLUSION: This study provides evidence supporting the link between physical inactivity and obesity of Canadian children.
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