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dc.contributor.authorMonyeki, Makama Andries
dc.contributor.authorMoss, Sarah J.
dc.contributor.authorKemper, Han C.G.
dc.contributor.authorTwisk, Jos W.R.
dc.identifier.citationMonyeki, M.A. et al. 2018. Self-reported physical activity is not a valid method for measuring physical activity in 15 year old South African boys and girls. 7th International Society for Physical Activity and Health Congress, 15-17 Oct, London, England. Journal of physical activity and health, 15 (10, Suppl 1): S218. []en_US
dc.identifier.issn1543-5474 (Online)
dc.description.abstractValid instruments for the assessment of physical activity remains a challenge in field studies. This study determine the level of agreement between objectively measured physical activity by ActiHeart® and the international physical activity questionnaire short form (IPAQ-S) among adolescents attending schools in the Tlokwe Local Municipality, South Africa. A total of 63 boys and 45 girls aged 15 years were participants in PhysicalActivity and Health Longitudinal Study (PHALS). Objective physical activity (PA) was measured by a means of ActiHeart® for seven (7) consecutive days. Subjective physical activity was assessed with self-reported IPAQ-S. Objective PA indicated that 93% of the participants were inactive and only 6% highly active. IPAQ-S showed that 24% were inactive with 57% active. A non-significant correlation (r = 0.11; p = 0.29) between ActiHeart® measure of activity energy expenditure (AEE) and total physical activity (IPAQ-S) was observed. Cohen’s Kappa (k) show poor agreement between the two measurement instruments, κ 0.011, P < 0.005en_US
dc.publisherHuman Kineticsen_US
dc.titleSelf-reported physical activity is not a valid method for measuring physical activity in 15 year old South African boys and girlsen_US
dc.contributor.researchID10210407 - Moss, Sarah Johanna
dc.contributor.researchID12621595 - Monyeki, Makama Andries

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