Physical activity and determinants of physical activity in obese and non-obese children

Trost, S.G., Kerr, L.M., Ward, D.S. and Pate, R.R. (2001) Physical activity and determinants of physical activity in obese and non-obese children. International Journal of Obesity, 25 6: 822-829. doi:10.1038/sj.ijo.0801621

Author Trost, S.G.
Kerr, L.M.
Ward, D.S.
Pate, R.R.
Title Physical activity and determinants of physical activity in obese and non-obese children
Journal name International Journal of Obesity   Check publisher's open access policy
ISSN 0307-0565
Publication date 2001-06
Sub-type Article (original research)
DOI 10.1038/sj.ijo.0801621
Volume 25
Issue 6
Start page 822
End page 829
Total pages 8
Editor R.L. Atkinson
I. Macdonald
Place of publication Stockton, England
Publisher Macmillan
Collection year 2001
Language eng
Subject C1
321499 Human Movement and Sports Science not elsewhere classified
730204 Child health
Formatted abstract
To compare the physical activity (PA) patterns and the hypothesized psychosocial and environmental determinants of PA in an ethnically diverse sample of obese and non-obese middle school children.

Cross-sectional study.

One-hundred and thirty-three non-obese and 54 obese sixth grade children (mean age of 11.4 +/-0.6). Obesity status determined using the age-, race- and gender-specific 95th percentile for BMI from NHANES-1.

Objective measurements were collected of PA over a 7-day period using the CSA 7164 accelerometer: total daily counts; daily moderate (3-5.9 METs) physical activity (MPA); daily vigorous physical activity (greater than or equal to 6 METs; VPA); and weekly number of 5, 10 and 20 min bouts of moderate-to-vigorous physical activity (greater than or equal to 3 METs, MVPA). Self-report measures were collected of PA self-efficacy; social influences regarding PA, beliefs about PA outcomes; perceived PA levels of parents and peers, access to sporting and/or fitness equipment at home, involvement in community-based PA organizations; participation in community sports teams; and hours spent watching television or playing video games.

Compared to their non-obese counterparts, obese children exhibited significantly lower daily accumulations of total counts, MPA and VPA as well as significantly fewer 5, 10 and 20 min bouts of MVPA. Obese children reported significantly lower levels of PA self-efficacy, were involved in significantly fewer community organizations promoting PA and were significantly less likely to report their father or male guardian as physically active.

The results are consistent with the hypothesis that physical inactivity is an important contributing factor in the maintenance of childhood obesity. Interventions to promote PA in obese children should endeavor to boost self-efficacy perceptions regarding exercise, increase awareness of, and access to, community PA outlets, and increase parental modeling of PA.
Keyword Endocrinology & Metabolism
Nutrition & Dietetics
Objective Monitoring
Risk Behavior Survey
Activity Patterns
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Human Movement and Nutrition Sciences Publications
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Created: Tue, 14 Aug 2007, 15:53:43 EST