Activity, Dietary Intake, and Weight Changes in a Longitudinal Study of Preadolescent and Adolescent Boys and Girls

  • Berkey C
  • Rockett H
  • Field A
 et al. 
  • 42

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Abstract

Objective. To examine the role of phys-ical activity, inactivity, and dietary patterns on annual weight changes among preadolescents and adolescents, taking growth and development into account. Study Design. We studied a cohort of 6149 girls and 4620 boys from all over the United States who were 9 to 14 years old in 1996. All returned questionnaires in the fall of 1996 and a year later in 1997. Each child provided his or her current height and weight and a detailed as-sessment of typical past-year dietary intakes, physical activities, and recreational inactivities (TV, videos/VCR, and video/computer games). Methods. Our hypotheses were that physical activity and dietary fiber intake are negatively correlated with annual changes in adiposity and that recreational inac-tivity (TV/videos/games), caloric intake, and dietary fat intake are positively correlated with annual changes in adiposity. Separately for boys and girls, we performed regression analysis of 1-year change in body mass index (BMI; kg/m 2

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Authors

  • Catherine S. Berkey

  • Helaine R. H. Rockett

  • Alison E. Field

  • Matthew W. Gillman

  • A. Lindsay Frazier

  • Carlos A. Camargo

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