Family physical activity and sedentary environments and weight change in children
- Authors: Timperio, Anna , Salmon, Jo , Ball, Kylie , Baur, Louise , Telford, Amanda , Jackson, Michelle , Salmon, Louisa , Crawford, David
- Date: 2008
- Type: Text , Journal article
- Relation: International Journal of Pediatric Obesity Vol. 3, no. 3 (2008), p. 160-167
- Full Text: false
- Reviewed:
- Description: 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.
- Description: C1
Children's enjoyment of play during school lunchtime breaks : An examination of intraday and interday reliability
- Authors: Hyndman, Brendon , Telford, Amanda , Ullah, Shahid , Benson, Amanda , Finch, Caroline
- Date: 2014
- Type: Text , Journal article
- Relation: Journal of Physical Activity & Health Vol. 11, no. 1 (January 2014 2014), p. 109-117
- Full Text: false
- Reviewed:
- Description: Background: Enjoyment and play during school lunchtime are correlated with children's physical activity. Despite this, there is an absence of studies reporting children's enjoyment of play during school lunchtime breaks. The purpose of this study was to examine the intraday and interday reliability of children's enjoyment of school lunchtime play. Methods: Surveys used to assess children's enjoyment of lunchtime play were distributed to and completed by 197 children (112 males, 85 females), aged 8-12 years attending an elementary school in Victoria, Australia. Children completed the surveys during class before lunch (expected enjoyment) and after lunch (actual enjoyment) for 5 days. The intra- and interday enjoyment of school lunchtime play reliability were determined using a weighted kappa. Results: Intraday kappa values ranged from fair (0.31) to substantial (0.75) within each of the 5 days (median kappa = 0.41). In comparison, "expected" (0.09-0.40; median 0.30) and "actual" (0.05-0.46; median 0.28) interday enjoyment of lunchtime play displayed low reliability. Conclusions: Children's enjoyment of lunchtime play appears to be more consistent within days than across days. The findings suggest that assessment of children's enjoyment of lunchtime play once on a single day would be representative of a particular day but not necessarily that particular school week.