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Ethnic differences in physical activity and inactivity patterns and overweight status.

Penny Gordon-Larsen1, Linda S Adair, Barry M Popkin

  • 1Carolina Population Center, Universityof North Carolina, Chapel hill, 27516-3997, USA. gordon_larsen@unc.edu

Obesity Research
|March 12, 2002
PubMed
Summary

Reducing screen time and increasing moderate to vigorous physical activity are key to preventing adolescent overweight. These lifestyle changes show significant benefits for diverse ethnic groups and sexes.

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Area of Science:

  • Adolescent health
  • Obesity research
  • Public health

Background:

  • Overweight and obesity are significant public health concerns in adolescents.
  • Understanding the interplay between physical activity, inactivity, and weight status is crucial for developing effective interventions.

Purpose of the Study:

  • To investigate the association between physical activity and inactivity patterns and overweight in U.S. adolescents.
  • To analyze baseline and 1-year changes in activity and inactivity levels concerning overweight status.

Main Methods:

  • Utilized nationally representative data from 12,759 adolescents from the National Longitudinal Study of Adolescent Health.
  • Collected data on moderate to vigorous physical activity, low-intensity activity, TV/video viewing, and computer use via questionnaires.

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  • Employed multivariate logistic regression models to assess the relationship between activity/inactivity levels and overweight (BMI ≥ 95th percentile), controlling for covariates.

    • Main Results:

    • High levels of TV/video viewing were positively associated with overweight in white adolescents (boys OR=1.52, girls OR=2.45).
    • Increased moderate to vigorous physical activity was associated with decreased odds of overweight across multiple ethnic groups and sexes.
    • Specific odds ratios indicated protective effects of physical activity against overweight for white, non-Hispanic black, and Hispanic boys and girls.

    Conclusions:

    • Lower overweight prevalence is predicted for adolescents with reduced TV/video viewing and frequent moderate to vigorous physical activity.
    • The findings highlight significant sex and ethnic variations in the associations between activity patterns and overweight.
    • Interventions targeting reduced screen time and increased physical activity may be effective in combating adolescent overweight.