Sedentary Activity and Body Composition of Middle School Girls: The Trial of Activity for Adolescent Girls

被引:29
|
作者
Pratt, Charlotte [1 ]
Webber, Larry S. [2 ]
Baggett, Chris D. [3 ]
Ward, Dianne [3 ]
Pate, Russell R. [4 ]
Murray, David [5 ]
Lohman, Timothy [6 ]
Lytle, Leslie [7 ]
Elder, John P. [8 ]
机构
[1] NHLBI, Bethesda, MD USA
[2] Tulane Univ, Dept Biostat, New Orleans, LA 70118 USA
[3] Univ N Carolina, Sch Publ Hlth, Chapel Hill, NC USA
[4] Univ S Carolina, Dept Exercise Sci, Columbia, SC 29208 USA
[5] Ohio State Univ, Coll Publ Hlth, Columbus, OH 43210 USA
[6] Univ Arizona, Dept Physiol, Tucson, AZ 85721 USA
[7] Univ Minnesota, Sch Publ Hlth, Minneapolis, MN 55455 USA
[8] San Diego State Univ, Sch Publ Hlth, San Diego, CA 92182 USA
关键词
accelerometry; body fat; body mass index; sedentary behavior;
D O I
10.1080/02701367.2008.10599512
中图分类号
F [经济];
学科分类号
02 ;
摘要
This study describes the relationships between sedentary activity and body composition in 1, 458 sixth-grade girls from 36 middle school, 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/m(2) +/- 4.8, 28.5 +/- 8.9, respectively. Girls averaged 7.7 +/- 1.2 sedentary hours per day and about 13 hr (similar to 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.
引用
收藏
页码:458 / 467
页数:10
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