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dc.creatorZamora Alfaro, José Antonio
dc.creatorLaclé Murray, Adriana
dc.date.accessioned2018-06-19T17:04:35Z
dc.date.available2018-06-19T17:04:35Z
dc.date.issued2017-06-19
dc.identifier.citationhttps://onlinelibrary.wiley.com/doi/10.1002/ajhb.23028
dc.identifier.issn1042-0533
dc.identifier.issn1520-6300
dc.identifier.urihttps://hdl.handle.net/10669/74947
dc.description.abstractOBJECTIVE: The purpose of this study was to verify the validity of body fat percentage (BF%) by bioelectrical impedance analysis (BIA) in a sample of Costa Rican schoolchildren. METHODS: The sample consisted of 52 male (mean age 8.1 ± 0.9 years) and 49 female (mean age 7.5 ± 1.0 years) schoolchildren. Deuterium oxide dilution was the reference method used as the “gold standard” to determine the fat mass (FM) expressed as BF%. Linear regression analyses and paired sample t‐tests were used to test the association and mean differences between BIA and deuterium oxide dilution BF%. Concordance between BIA and deuterium oxide dilution BF% was determined by Lin's concordance correlation coefficient. Measurement of agreement between the two methods was analyzed using the Bland‐Altman procedure. RESULTS: Significant associations between BIA and deuterium oxide dilution BF% were found in males (R = 0.97, R2 = 0.95, P < .0001) and in females (R = 0.98, R2 = .96, P < .0001). The measurements of BF% (mean ± SD) were not significantly different between males (BIA 31.1 ± 7.6% vs. deuterium oxide dilution 31.0 ± 7.4%) and females (BIA 25.9 ± 7.9% vs. deuterium oxide dilution 26.3 ± 7.8%) by t‐test. Lin's concordance correlation coefficient identified an almost perfect strength of agreement between males and females. Bland‐Altman plots showed that the Bodystat measured similar BF% compared to the deuterium oxide dilution in both males and females. CONCLUSIONS: BIA Bodystat presented high agreement with BF% measured by deuterium oxide dilution; therefore BIA Bodystat is recommended for estimating BF% in Costa Rican schoolchildren.es_ES
dc.description.sponsorshipInternational Atomic Energy Agencyes_ES
dc.language.isoen_USes_ES
dc.sourceAmerican Journal of Human Biology; Volumen 29, Número 5es_ES
dc.subjectGrasa corporales_ES
dc.subjectÓxido de deuterioes_ES
dc.subjectBioimpedanciaes_ES
dc.titlePredictive validity of body fat percentage by bioimpedance compared with deuterium oxide dilution in Costa Rican schoolchildrenes_ES
dc.typeartículo original
dc.identifier.doidoi.org/10.1002/ajhb.23028
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias de la Salud::Instituto de Investigaciones en Salud (INISA)es_ES


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