Family physical activity and sedentary environments and weight change in children

Timperio, Anna, Salmon, Jo, Ball, Kylie, Baur, Louise A., Telford, Amanda, Jackson, Michelle, Salmon, Louisa and Crawford, David 2008, Family physical activity and sedentary environments and weight change in children, International journal of pediatric obesity, vol. 3, no. 3, pp. 160-167.

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Title Family physical activity and sedentary environments and weight change in children
Author(s) Timperio, Anna
Salmon, Jo
Ball, Kylie
Baur, Louise A.
Telford, Amanda
Jackson, Michelle
Salmon, Louisa
Crawford, David
Journal name International journal of pediatric obesity
Volume number 3
Issue number 3
Start page 160
End page 167
Total pages 8
Publisher Informa Healthcare
Place of publication London, England
Publication date 2008
ISSN 1747-7166
1747-7174
Keyword(s) longitudinal studies
family
child
adolescent
television
weight gain
behaviour
overweight
reinforcement
siblings
Summary Objective. To examine associations between family physical activity and sedentary environment and changes in body mass index (BMI) z-scores among 10-12-year-old children over three years.
Method. Design. Longitudinal (three-year follow-up). Subjects. In total, 152 boys and 192 girls aged 10-12 years at baseline.
Measurements. Measured height and weight at baseline and follow-up (weight status, BMI z-scores); aspects of the family physical activity and sedentary environment (parental and sibling modelling, reinforcement, social support, family-related barriers, rules/restrictions, home physical environment) measured with a questionnaire completed by parents at baseline.
Results. At baseline, 29.6% of boys and 21.9% of girls were overweight or obese, and mean (standard deviation, SD) BMI z-scores were 0.44 (0.99) and 0.28 (0.89), respectively. There was a significant change in BMI z-score among girls (mean change=0.19, SD=0.55, p<0.001), but not boys. Among boys, the number of items at home able to be used for sedentary behaviour (B=0.11, p=0.037) was associated with relatively greater increases in BMI z-score. Among girls, sibling engagement in physical activity at least three times/wk (B=-0.17, p=0.010) and the number of physical activity equipment items at home (B=-0.05, p=0.018) were associated with relatively greater decreases in BMI z-score.
Conclusion. Sibling physical activity and environmental stimuli for sedentary behaviours and physical activity within the home may be important targets for prevention of weight gain during the transition from childhood to adolescence.
Language eng
Field of Research 111701 Aboriginal and Torres Strait Islander Health
Socio Economic Objective 920205 Health Education and Promotion
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2008
Copyright notice ©2008, Informa Healthcare
Persistent URL http://hdl.handle.net/10536/DRO/DU:30017805

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