Article

The Relationship between Sedentary Activities and Physical Inactivity Among Canadian Adolescents: Results from the Canadian Community Health Survey"

Department of Public Health Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
Journal of Adolescent Health (Impact Factor: 3.61). 11/2006; 39(4):515-22. DOI: 10.1016/j.jadohealth.2006.02.005
Source: PubMed

ABSTRACT

To evaluate the relationships between the time spent on sedentary activities (computer usage, video game playing, television viewing, and reading) and physical inactivity in a sample of youth (aged 12-19 years) from the 2000-2001 Canadian Community Health Survey.
The study sample included 7982 youth (4034 males, 3948 females) across Canada (mean age: 15.61 years, SD: 2.23 years). Weekly time spent on computers, video games, television, and reading during leisure-time was obtained through self-reported questionnaires. Physical inactivity was determined by respondents' daily energy expenditure assessed through a physical activity questionnaire. Multivariate logistic regression analysis was conducted to examine the relationship between sedentary activities and physical inactivity respectively by gender. Sociodemographic variables, health status, and overweight status were controlled in the analysis.
A substantial proportion of Canadian youth was inactive: 50.3% of males and 67.8% of females. Controlling for sociodemographic variables, health status, and body mass index, television viewing was significantly associated with physical inactivity for both males and females regardless of their overweight status. However, computer usage was associated with physical activity among males, and reading was associated with physical activity among females.
There is a complex inter-relationship between sedentary behaviors and physical inactivity, highlighting the need for targeted interventions addressing patterns of sedentary behavior engagement. Reducing time spent on television viewing may be one plausible strategy within such interventions in reducing physical inactivity among youth.

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    • "With regard to individual-level socio-demographic factors, a negative association has been identified between PA and age, with PA declines being steepest for female adolescents [14, 15]. In general, boys tend to be more active than girls in Canada16171819, but study results have been mixed [20]. Research in Canada and the United States has also found that PA levels are lower among new and recent immigrants21222324252627. "
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    • "It is evident that gender differences existed for almost all the activities listed in the questionnaire. Gender differences in the participation in non-kinesiology related activities in their free time were also obtained in the following studies: Kolar (1993); McHale, Crouter, and Tucker (2001); Arbunić (2002); Babić (2003); Miller (2003); Salmon, Telford and Crawford (2004); Koezuka et al. (2006) "
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    • "The probable reason was the fact that in this test, there was no movement of the lower extremities and trunk and therefore it was not necessary to trigger the mass of the body in space, but the task performed by only the upper extremities. Daily physical exercise had for prediction of increasing levels of motor skills, which was positively correlated with body mass index (Biddle et al., 2005; Koezuka et al., 2006; Wrotniak et al., 2006; D' Hondt et al., 2009) . Also, daily physical activity is very important to maintain normal body weight but also in weight reduction. "
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