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Effect of a multidimensional physical activity intervention on body mass index, skinfolds and fitness in South African children : results from a cluster-randomised controlled trial

Müller, Ivan and Schindler, Christian and Adams, Larissa and Endes, Katharina and Gall, Stefanie and Gerber, Markus and Htun, Nan S. N. and Nqweniso, Siphesihle and Joubert, Nandi and Probst-Hensch, Nicole and du Randt, Rosa and Seelig, Harald and Smith, Danielle and Steinmann, Peter and Utzinger, Jürg and Yap, Peiling and Walter, Cheryl and Pühse, Uwe. (2019) Effect of a multidimensional physical activity intervention on body mass index, skinfolds and fitness in South African children : results from a cluster-randomised controlled trial. International Journal of Environmental Research and Public Health, 16 (2). p. 232.

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Abstract

Obesity-related conditions impose a considerable and growing burden on low- and middle-income countries, including South Africa. We aimed to assess the effect of twice a 10-week multidimensional, school-based physical activity intervention on children's health in Port Elizabeth, South Africa. A cluster-randomised controlled trial was implemented from February 2015 to May 2016 in grade 4 classes in eight disadvantaged primary schools. Interventions consisted of physical education lessons, moving-to-music classes, in-class activity breaks and school infrastructure enhancement to promote physical activity. Primary outcomes included cardiorespiratory fitness, body mass index (BMI) and skinfold thickness. Explanatory variables were socioeconomic status, self-reported physical activity, stunting, anaemia and parasite infections. Complete data were available from 746 children. A significantly lower increase in the mean BMI Z-score (estimate of difference in mean change: -0.17; 95% confidence interval (CI): -0.24 to -0.09; p < 0.001) and reduced increase in the mean skinfold thickness (difference in mean change: -1.06; 95% CI: -1.83 to -0.29; p = 0.007) was observed in intervention schools. No significant group difference occurred in the mean change of cardiorespiratory fitness (p > 0.05). These findings show that a multidimensional, school-based physical activity intervention can reduce the increase in specific cardiovascular risk factors. However, a longer and more intensive intervention might be necessary to improve cardiorespiratory fitness.
Faculties and Departments:03 Faculty of Medicine
09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH)
UniBasel Contributors:Schindler, Christian and Htun, Nan Shwe Nwe and Htun, Nan Shwe Nwe and Probst Hensch, Nicole and Steinmann, Peter and Utzinger, Jürg and Yap, Peiling and Seelig, Harald and Müller, Iwan Martin
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:MDPI
ISSN:1661-7827
e-ISSN:1660-4601
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:18 Feb 2019 09:02
Deposited On:29 Jan 2019 16:00

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