n Cardiovascular Journal of Africa - Ellisras Longitudinal Study 2017 : body frame variation and adiposity among Polokwane private school children (ELS 9) - cardiovascular topics

Volume 30 Number 6
  • ISSN : 1995-1892
  • E-ISSN: 1680-0745



Objective: Obesity affects both developed and developing countries and it affects children worldwide. The aim of this study was to investigate the relationship between body frame size and adiposity among Polokwane private school children.

Methods: A total of 2 162 children (1 126 boys and 1 036 girls) aged five to 15 years attending three private schools in Polokwane, a city in the Limpopo Province of South Africa, participated in the study. Most of the participants were black children (99.77%), whereas 0.2% were white, 0.01% were coloureds and 0.02% were Indians. Subjects underwent anthropometric measurements including weight and height, skinfolds including triceps and subscapular, and body frame including bi-iliocristal and transverse chest.

Results: There was a negative significant correlation between body mass index (BMI) (reflects adiposity) and height only (reflects body frame) (r2 = –0.268 and r2 = –0.303, respectively) among children in age group five to seven years. BMI was also significantly and positively correlated with skinfolds and vice versa (both reflect adiposity) (r = 0.345–0.571).

Conclusion: There was a positive significant correlation between adiposity (reflected by skinfolds and BMI) and several measures of body frame size among Polokwane private school children. Moreover, body frame size can be used in the detection of risk for obesity.

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