Objectively measured physical activity, physical activity related personality and body mass index in 6- to 10-yr-old chi
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BioMed Central
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Objectively measured physical activity, physical activity related personality and body mass index in 6- to 10-yr-old children: a cross-sectional study Benedicte Deforche*1,2,3, Ilse De Bourdeaudhuij1, Eva D'hondt1,2 and Greet Cardon1 Address: 1Department of Movement and Sports Sciences, Ghent University, Watersportlaan 2, 9000 Gent, Belgium, 2Research Foundation Flanders (FWO), Belgium and 3Department of Human Biometry and Biomechanics, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Pleinlaan, Brussels, Belguim Email: Benedicte Deforche* - [email protected]; Ilse De Bourdeaudhuij - [email protected]; Eva D'hondt - [email protected]; Greet Cardon - [email protected] * Corresponding author
Published: 14 May 2009 International Journal of Behavioral Nutrition and Physical Activity 2009, 6:25
doi:10.1186/1479-5868-6-25
Received: 18 July 2008 Accepted: 14 May 2009
This article is available from: http://www.ijbnpa.org/content/6/1/25 © 2009 Deforche et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract Background: The prevalence and level of overweight in childhood is rapidly increasing. One potential contributor to the rise in overweight is a decline in physical activity (PA). The purpose of this study was to compare levels and patterns of PA and PA related personality in normal-weight (NW) and overweight (OW) 6- to 10-yr-old children. Methods: Subjects were grouped into OW (N = 59, BMI = 24.2 ± 4.8 kg/m2) or NW (N = 61, BMI = 15.7 ± 1.5 kg/m2) according to International Obesity Task Force cut-offs. PA was assessed by accelerometry. Parents filled in a questionnaire on PA and sedentary behaviour and PA related personality of their child (born tired, moves slowly, is often tired, lacks energy, avoids physical efforts, prefers watching playing children instead of joining them, is always active, needs to let himself/herself go, has a lot of energy). Results: NW children spent on average 77 min/day in MVPA, whereas OW children only 57 min/day (p = .001). OW children had fewer 5, 10 and 20 min bouts of MVPA (p = .01). OW and NW children showed identical PA patterns on both week days and weekends, although at different levels. According to parents' report, a greater percentage of OW children was not engaged in any sport (46% versus 23%, chi2 = 6.3, p = .01). OW children had a less active personality (p < .001), watched more TV during weekend (p < .01), but no differences were found in outside play or non-active play. BMI of mother and father explained 29% of the variance in children's BMI z-score (p < .001). PA related personality, screen behaviour during weekend and MVPA explained an additional 12% (p < 0.01). Conclusion: The results of this study demonstrate that NW
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