Sedentary activity and body composition of middle school girls: The trial of activity for adolescent girls

Charlotte Pratt, Larry S. Webber, Chris D. Baggett, Dianne Ward, Russell R. Pate, David Murray, Timothy Lohman, Leslie Lytle, John P. Elder

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

This study describes the relationships between sedentary activity and body composition in 1, 458 sixth-grade girls from 36 middle schools across the United States. Multivariate associations between sedentary activity and body composition were examined with regression analyses using general linear mixed models. Mean age, body mass index, and percentage of body fat were 12.0 ± 0.51, 21.1 kg/m2 ± 4.8, 28.5 ± 8.9, respectively. Girls averaged 7.7 ± 1.2 sedentary hours per day and about 13 hr (∼ 97% of the day) of both sedentary and light activities. Overweight girls were significantly more (13 min; p < .003) sedentary, especially after school (> 2 p.m.; p < .01), and less physically active (p < .0001) than normal weight girls. The study documents small but significant associations between sedentary activity and adiposity.

Original languageEnglish (US)
Pages (from-to)458-467
Number of pages10
JournalResearch Quarterly for Exercise and Sport
Volume79
Issue number4
DOIs
StatePublished - Dec 2008

Keywords

  • Accelerometry
  • Body fat
  • Body mass index
  • Sedentary behavior

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Nephrology

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