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.authorCook, Ianen_ZA
dc.contributor.authorAlberts, Marianneen_ZA
dc.contributor.authorLambert, Estelleen_ZA
dc.date.accessioned2015-10-28T06:46:35Z
dc.date.available2015-10-28T06:46:35Z
dc.date.issued2009en_ZA
dc.description.abstractBACKGROUND: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.identifier.apacitationCook, I., Alberts, M., & Lambert, E. (2009). Development of a four-item physical activity index from information about subsistence living in rural African women: a descriptive, cross-sectional investigation. <i>International Journal of Behavioral Nutrition and Physical Activity</i>, http://hdl.handle.net/11427/14424en_ZA
dc.identifier.chicagocitationCook, Ian, Marianne Alberts, and Estelle Lambert "Development of a four-item physical activity index from information about subsistence living in rural African women: a descriptive, cross-sectional investigation." <i>International Journal of Behavioral Nutrition and Physical Activity</i> (2009) http://hdl.handle.net/11427/14424en_ZA
dc.identifier.citationCook, 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.ris TY - Journal Article AU - Cook, Ian AU - Alberts, Marianne AU - Lambert, Estelle AB - 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. DA - 2009 DB - OpenUCT DO - 10.1186/1479-5868-6-75 DP - University of Cape Town J1 - International Journal of Behavioral Nutrition and Physical Activity LK - https://open.uct.ac.za PB - University of Cape Town PY - 2009 T1 - Development of a four-item physical activity index from information about subsistence living in rural African women: a descriptive, cross-sectional investigation TI - Development of a four-item physical activity index from information about subsistence living in rural African women: a descriptive, cross-sectional investigation UR - http://hdl.handle.net/11427/14424 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/14424
dc.identifier.urihttp://dx.doi.org/10.1186/1479-5868-6-75
dc.identifier.vancouvercitationCook I, Alberts M, Lambert E. Development of a four-item physical activity index from information about subsistence living in rural African women: a descriptive, cross-sectional investigation. International Journal of Behavioral Nutrition and Physical Activity. 2009; http://hdl.handle.net/11427/14424.en_ZA
dc.language.isoengen_ZA
dc.publisherBioMed Central Ltden_ZA
dc.publisher.departmentMRC/UCT RU for Exercise and Sport Medicineen_ZA
dc.publisher.facultyFaculty of Health Sciencesen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.rightsThis is an Open Access article distributed under the terms of the Creative Commons Attribution Licenseen_ZA
dc.rights.holder2009 Cook et al; licensee BioMed Central Ltd.en_ZA
dc.rights.urihttp://creativecommons.org/licenses/by/2.0en_ZA
dc.sourceInternational Journal of Behavioral Nutrition and Physical Activityen_ZA
dc.source.urihttp://www.ijbnpa.orgen_ZA
dc.subject.otherPhysical activity indexen_ZA
dc.subject.otherRural African womenen_ZA
dc.titleDevelopment of a four-item physical activity index from information about subsistence living in rural African women: a descriptive, cross-sectional investigationen_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
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uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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