Show simple item record

dc.contributor.authorDoak, Colleen
dc.contributor.authorKruger, Herculina Salome
dc.contributor.authorMargetts, Barrie Maxwell
dc.contributor.authorStegman, Inge
dc.contributor.authorVorster, Hester Hendrina
dc.contributor.authorDoak, Colleen
dc.contributor.authorKruger, Herculina Salome
dc.contributor.authorMargetts, Barrie Maxwell
dc.contributor.authorStegman, Inge
dc.contributor.authorVorster, Hester Hendrina
dc.date.accessioned2013-10-10T09:18:58Z
dc.date.available2013-10-10T09:18:58Z
dc.date.issued2012
dc.identifier.citationKruger, H.S. et al. 2012. Beneficial effect of physical activity on linear growth rate of adolescents in a South African shanty town.African journal for physical, health education, recreation and dance (AJPHERD), 18(2):251-266. [http://reference.sabinet.co.za/sa_epublication/ajpherd]en_US
dc.identifier.issn1117-4315
dc.identifier.urihttp://hdl.handle.net/10394/9256
dc.description.abstractIt is not known if nutritional and/or other interventions could improve linear growth in adolescents. The purpose of this study was to assess the role of physical activity in promoting linear growth velocity of black adolescents in a low-income shanty town in South Africa. Two schools in a disadvantaged shanty town participated in the study as intervention (n=250) and reference (n=66) groups. Due to practical considerations a quasi-experimental study design was used. Demographic, dietary intake, habitual physical activity and Tanner stage data were collected and anthropometric measurements were carried out over three years. Height for age z-scores (HAZ) were calculated and regression lines were fitted through HAZ values plotted against time. Slopes of HAZ regression lines for each child were used to represent the child's linear growth velocity over the study period. A physical activity intervention was carried out over two years. The main outcome measure, mean growth velocity of children from the intervention versus the reference school was compared using analysis of covariance (ANCOVA), with HAZ at baseline, and habitual physical activity, Tanner stage, and dietary energy, protein, zinc and iron intakes as covariates, and growth velocity (slope of the regression line) as dependent variable. The mean slopes of HAZ regression lines of the intervention (+0.002) and reference groups (-0.007) were significantly different (p=0.009). ANCOVA showed a significantly higher slope of the HAZ regression line in the intervention group than in the reference group [F(1,292)=3.87, p=0.05]. The results indicate a possible role for physical activity in promoting the linear growth of adolescents in low-income areas.en_US
dc.description.urihttp://reference.sabinet.co.za/webx/access/electronic_journals/ajpherd/ajpherd_v18_n2_a5.pdf
dc.language.isoenen_US
dc.publisherSabineten_US
dc.subjectAdolescentsen_US
dc.subjectlinear growthen_US
dc.subjectphysical activityen_US
dc.subjectSouth Africaen_US
dc.subjectStuntingen_US
dc.titleBeneficial effect of physical activity on linear growth rate of adolescents in a South African shanty townen_US
dc.typeArticleen_US
dc.contributor.researchID10055355 - Vorster, Hester Hendrina
dc.contributor.researchID10061568 - Kruger, Herculina Salome
dc.contributor.researchID12130885 - Margetts, Barrie Maxwell


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record