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High Hydration Factor in Older Hispanic-American Adults: Possible Implications for Accurate Body Composition Estimates

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Centro de Investigación en Alimentación y Desarrollo, A.C. Coordinación de Nutrición. Carretera Gustavo Enrique Astiazarán Rosas #46, Col. La Victoria C.P. 83304, Hermosillo, Sonora, Mexico
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Universidad Autónoma de Ciudad Juárez. Instituto de Ciencias Biomédicas. Departamento de Ciencias de la Salud. Ave. Plutarco Elías Calles #1210, Col. Fovissste Chamizal C.P. 32310, Ciudad Juárez, Chihuahua, Mexico
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Universidad Autónoma de Nuevo León. Facultad de Salud Pública y Nutrición. Ave. Dr. Eduardo Aguirre Pequeño #905, Col. Mitras Centro C.P. 64460, Monterrey, Nuevo León, Mexico
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Author to whom correspondence should be addressed.
Nutrients 2019, 11(12), 2897; https://doi.org/10.3390/nu11122897
Received: 26 September 2019 / Revised: 1 November 2019 / Accepted: 12 November 2019 / Published: 29 November 2019
(This article belongs to the Special Issue Water Intake, Body Water Regulation and Health)
Age- and obesity-related body composition changes could influence the hydration factor (HF) and, as a result, body composition estimates derived from hydrometry. The aim of the present study was to compare the HF in older Hispanic-American adults to some published values. This cross-sectional study included a sample of 412 subjects, men and women, aged ≥60 years from northern Mexico. HF values were calculated based on the ratio of total body water-using the deuterium dilution technique-to fat-free mass, derived from the four-compartment model. The mean HF value for the total sample (0.748 ± 0.034) was statistically (p ≤ 0.01) higher than the traditionally assumed value of 0.732 derived from chemical analysis, the “grand mean’’ value of 0.725 derived from in vivo methods, and the 0.734 value calculated for older French adults via the three-compartment model. The HF of the older women did not differ across the fat mass index categories, but in men the obese group was lower than the normal and excess fat groups. The hydration factor calculated for the total sample of older Hispanic-American people is higher than the HF values reported in the literature. Therefore, the indiscriminate use of these assumed values could produce inaccurate body composition estimates in older Hispanic-American people. View Full-Text
Keywords: aging; body composition; obesity; hydration factor and Hispanic Americans aging; body composition; obesity; hydration factor and Hispanic Americans
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González-Arellanes, R.; Urquidez-Romero, R.; Rodríguez-Tadeo, A.; Esparza-Romero, J.; Méndez-Estrada, R.-O.; Ramírez-López, E.; Robles-Sardin, A.-E.; Pacheco-Moreno, B.-I.; Alemán-Mateo, H. High Hydration Factor in Older Hispanic-American Adults: Possible Implications for Accurate Body Composition Estimates. Nutrients 2019, 11, 2897.

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