Müller, I. and Walter, C. and Du Randt, R. and Aerts, A. and Adams, L. and Degen, J. and Gall, S. and Joubert, N. and Nqweniso, S. and Des Rosiers, S. and Smith, D. and Seelig, H. and Steinmann, P. and Wadhwani, C. and Probst-Hensch, N. and Utzinger, J. and Pühse, U. and Gerber, M.. (2020) Association between physical activity, cardiorespiratory fitness and clustered cardiovascular risk in South African children from disadvantaged communities: results from a cross-sectional study. BMJ Open Sport & Exercise Medicine, 6. e000823.
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Abstract
Background/Aim:; Physical inactivity (PIA) is a growing global health problem and evidence suggests that PIA is a key driver for cardiovascular and chronic diseases. Recent data from South Africa revealed that only about half of the children achieved recommended daily physical activity (PA) levels. Assessing the intensity of PA in children from low socioeconomic communities in low-income and middle-income countries is important to estimate the extent of cardiovascular risk and overall impact on health.; Methods:; We conducted a cross-sectional survey in eight quintile 3 primary schools in disadvantaged communities in the Port Elizabeth region, South Africa. Children aged 10-15 years were subjected to PA, blood pressure, cholesterol, blood glucose and skinfold thickness assessments. Cardiovascular risk markers were converted into standardised z-scores and summed, to obtain a clustered cardiovascular risk score.; Results:; Overall, 650 children had complete data records. 40.8% of the children did not meet recommended PA levels (ie, logged <60 min of moderate-to-vigorous physical activity (MVPA) per day). If quartiles were developed based on children's cardiorespiratory fitness (CRF) and MVPA levels, a significant difference was found in clustered cardiovascular risk among children in the highest versus lowest fitness (p<0.001) or MVPA (p<0.001) quartiles.; Conclusions:; CRF and objectively assessed PA are closely linked with children's clustered cardiovascular risk. Given that 4 out of 10 South African schoolchildren from marginalised communities do not meet international PA recommendations, efforts should be made to ensure that promoting a physically active lifestyle is recognised as an important educational goal in primary schools.
Faculties and Departments: | 09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Epidemiology and Public Health (EPH) > Chronic Disease Epidemiology > Exposome Science (Probst-Hensch) 03 Faculty of Medicine > Departement Public Health > Sozial- und Präventivmedizin > Exposome Science (Probst-Hensch) 09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) 09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Swiss Centre for International Health (SCIH) > Systems Strengthening and Health Promotion (Prytherch) 09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Former Units within Swiss TPH > Health Impact Assessment (Utzinger) |
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UniBasel Contributors: | Joubert, Nandi and Steinmann, Peter and Probst-Hensch, Nicole and Utzinger, Jürg and Müller, Ivan and Walter, Cheryl and du Randt, Rosa and Aerts, Ann and Adams, Larissa and Degen, Jan and Gall, Stefanie and Nqweniso, Siphesihle and Des Rosiers, Sarah and Smith, Danielle and Seelig, Harald and Wadhwani, Christina and Pühse, Uwe and Gerber, Markus and , |
Item Type: | Article, refereed |
Article Subtype: | Research Article |
Publisher: | BMJ |
e-ISSN: | 2055-7647 |
Note: | Publication type according to Uni Basel Research Database: Journal article |
Language: | English |
Related URLs: | |
Identification Number: |
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edoc DOI: | |
Last Modified: | 24 Jul 2023 13:16 |
Deposited On: | 28 Dec 2022 13:40 |
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