{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Gerber M"],"funding":["Fondation Botnar"],"pagination":["11836"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9517541"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["19(18)"],"pubmed_abstract":["<b>Background:</b> Over the past decades, childhood overweight has increased in many African countries. We examined the relationship between sedentary behaviour, moderate-to-vigorous physical activity (MVPA), and body composition in South African primary schoolchildren living in peri-urban settings. <b>Methods:</b> MVPA was measured via 7-day accelerometry and body composition via bioelectrical impedance analysis in 1090 learners (49.2% girls, M<sub>age</sub> = 8.3 ± 1.4 years). The relationships between MVPA and sedentary behaviour with the various body composition indicators (body fat and fat-free mass [total, truncal, arms, and legs], bone mass, muscle mass, and body water) were tested with mixed linear regressions. <b>Results:</b> The prevalence of overweight and obesity was 9.8% and 6.6%, respectively; 77.1% of the children engaged in ≥60 min of MVPA/day. Girls were more likely to be overweight/obese, to accumulate less than 60 min of MVPA/day, and had significantly higher relative body fat than boys (<i>p</i>s &lt; 0.001). Lower MVPA was associated with a higher likelihood of being overweight/obese, higher relative body fat, and lower relative fat-free mass, bone mass, muscle mass, and body water (<i>p</i>s &lt; 0.001). For lower sedentary behaviour, the associations with body composition pointed in the opposite direction. <b>Conclusions:</b> In this South African setting, girls are a particularly relevant target group for future physical activity interventions to prevent overweight/obesity-related non-communicable diseases in later life."],"journal":["International journal of environmental research and public health"],"pubmed_title":["Physical Activity, Sedentary Behaviour, Weight Status, and Body Composition among South African Primary Schoolchildren."],"pmcid":["PMC9517541"],"funding_grant_id":["6071"],"pubmed_authors":["Beckmann J","Puhse U","Walter C","Lang C","du Randt R","Utzinger J","Gerber M","Steinmann P","Nienaber M","Nqweniso S","Long KZ","Muller I","Probst-Hensch N"],"additional_accession":[]},"is_claimable":false,"name":"Physical Activity, Sedentary Behaviour, Weight Status, and Body Composition among South African Primary Schoolchildren.","description":"<b>Background:</b> Over the past decades, childhood overweight has increased in many African countries. We examined the relationship between sedentary behaviour, moderate-to-vigorous physical activity (MVPA), and body composition in South African primary schoolchildren living in peri-urban settings. <b>Methods:</b> MVPA was measured via 7-day accelerometry and body composition via bioelectrical impedance analysis in 1090 learners (49.2% girls, M<sub>age</sub> = 8.3 ± 1.4 years). The relationships between MVPA and sedentary behaviour with the various body composition indicators (body fat and fat-free mass [total, truncal, arms, and legs], bone mass, muscle mass, and body water) were tested with mixed linear regressions. <b>Results:</b> The prevalence of overweight and obesity was 9.8% and 6.6%, respectively; 77.1% of the children engaged in ≥60 min of MVPA/day. Girls were more likely to be overweight/obese, to accumulate less than 60 min of MVPA/day, and had significantly higher relative body fat than boys (<i>p</i>s &lt; 0.001). Lower MVPA was associated with a higher likelihood of being overweight/obese, higher relative body fat, and lower relative fat-free mass, bone mass, muscle mass, and body water (<i>p</i>s &lt; 0.001). For lower sedentary behaviour, the associations with body composition pointed in the opposite direction. <b>Conclusions:</b> In this South African setting, girls are a particularly relevant target group for future physical activity interventions to prevent overweight/obesity-related non-communicable diseases in later life.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Sep","modification":"2025-04-19T05:18:24.811Z","creation":"2025-04-19T05:18:24.811Z"},"accession":"S-EPMC9517541","cross_references":{"pubmed":["36142108"],"doi":["10.3390/ijerph191811836"]}}