Development of a four-item physical activity index from information about subsistence living in rural African women: a descriptive, cross-sectional investigation

 

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dc.contributor.author Cook, Ian en_ZA
dc.contributor.author Alberts, Marianne en_ZA
dc.contributor.author Lambert, Estelle en_ZA
dc.date.accessioned 2015-10-28T06:46:35Z
dc.date.available 2015-10-28T06:46:35Z
dc.date.issued 2009 en_ZA
dc.identifier.citation Cook, I., Alberts, M., & Lambert, E. V. (2009). International Journal of Behavioral Nutrition and Physical Activity. International Journal of Behavioral Nutrition and Physical Activity, 6, 75. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/14424
dc.identifier.uri http://dx.doi.org/10.1186/1479-5868-6-75
dc.description.abstract BACKGROUND:We investigated the criterion validity of a physical activity index (PAI) derived from socio-demographic variables obtained from convenience samples of rural African women. METHODS: We used a sample (N = 206) from a larger dataset which surveyed adult rural Africans during 1997, and data collected during 2003/4 from 138 adult rural African women. A three-point PAI (low-, medium- and high-subsistence) was constructed from four socio-demographic questions related to electricity, cooking methods, water collection and availability of motorized transport. Criterion measures included measures of adiposity, blood biochemistry, resting blood pressure (RBP), physical fitness (VO2max) and single-plane accelerometry (ACC). RESULTS: Age, educational level and health status were not related to PAI level (p > 0.1). There was a significant negative, linear trend between the PAI level and adiposity level (p < 0.04), and fasting blood glucose concentration (p < 0.0001), while VO2max was positively related to PAI level (p = 0.0190). The PAI level was positively and linearly related to ACC output, namely counts.day-1 (p = 0.0044), steps.day-1 (p = 0.0265), min.day-1 of moderate-to-vigorous activity (p = 0.0040), and the percentage of subjects adhering to physical activity public health guidelines (p = 0.0157). Other criterion measures did not reach significance, but were in the expected direction (sedentary behaviour: p > 0.08, RBP: p > 0.07). CONCLUSION: The PAI derived from a socio-demographic questionnaire is a valid instrument for broadly categorizing levels of physical activity for this specific population of rural African women. As the epidemiological transition progresses, validity will need to be re-established. en_ZA
dc.language.iso eng en_ZA
dc.publisher BioMed Central Ltd en_ZA
dc.rights This is an Open Access article distributed under the terms of the Creative Commons Attribution License en_ZA
dc.rights.uri http://creativecommons.org/licenses/by/2.0 en_ZA
dc.source International Journal of Behavioral Nutrition and Physical Activity en_ZA
dc.source.uri http://www.ijbnpa.org en_ZA
dc.subject.other Physical activity index en_ZA
dc.subject.other Rural African women en_ZA
dc.title Development of a four-item physical activity index from information about subsistence living in rural African women: a descriptive, cross-sectional investigation en_ZA
dc.type Journal Article en_ZA
dc.rights.holder 2009 Cook et al; licensee BioMed Central Ltd. en_ZA
uct.type.publication Research en_ZA
uct.type.resource Article en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Health Sciences en_ZA
dc.publisher.department MRC/UCT RU for Exercise and Sport Medicine en_ZA
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This is an Open Access article distributed under the terms of the Creative Commons Attribution License Except where otherwise noted, this item's license is described as This is an Open Access article distributed under the terms of the Creative Commons Attribution License