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Open AccessArticle

Bioelectrical Impedance Vector Analysis and Phase Angle on Different Oral Zinc Supplementation in Eutrophic Children: Randomized Triple-Blind Study

1
Post-graduate Program in Health Sciences, Federal University of Rio Grande do Norte, CEP 59012-570 Natal, RN, Brazil
2
Department of Nutrition, Federal University of Rio Grande do Norte, CEP 59078-970 Natal, RN, Brazil
3
Department of Pharmacy, University of Cuiabá, CEP 78850-000 Cuiabá, MT, Brazil
4
Department of Clinical and Toxicological Analysis, Federal University of Rio Grande do Norte, CEP 59012-570 Natal, RN, Brazil
5
Department of Internal Medicine, Federal University of Rio Grande do Norte, CEP 59012-570 Natal, RN, Brazil
*
Authors to whom correspondence should be addressed.
Nutrients 2019, 11(6), 1215; https://doi.org/10.3390/nu11061215
Received: 31 March 2019 / Revised: 3 May 2019 / Accepted: 7 May 2019 / Published: 28 May 2019
(This article belongs to the Special Issue Dietary Trace Minerals)
The parameters derived from bioelectrical impedance, phase angle (PA) and bioelectrical impedance vector analysis (BIVA) have been associated with cell membrane integrity and body cell mass. Zinc is a micronutrient that exerts important structural functions and acts in maintaining cellular functionality. To evaluate cell integrity and body cell mass, PA and BIVA were evaluated in children orally supplemented with zinc at different concentrations. Anthropometric, bioelectrical (resistance and reactance) and serum zinc variables were collected from two randomized, triple-blind, controlled clinical trials. Sampling was composed of 71 children consisting of three groups: a control group who received a placebo and two experimental groups who received oral supplementation of 5 or 10 mg-Zn/day for three months. The three groups presented increases (p < 0.001) in the linear height and weight. In the group supplemented with 10 mg-Zn/day, there was an increase in reactance values (p = 0.036) and PA (p = 0.002), in addition to vector displacement (p < 0.001) in relation to the confidence ellipses. An increase in serum zinc concentration was found (p < 0.001) in all three groups. Whit this, the supplementation with 10 mg-Zn/day promotes changes in the integrity of the cell membrane associated with the increase in the cellular mass of healthy children. View Full-Text
Keywords: body composition; cell membrane; bioimpedance body composition; cell membrane; bioimpedance
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Vermeulen, K.M.; Lopes, M.M.G.D.; Alves, C.X.; Brito, N.J.N.; Almeida, M.G.; Leite-Lais, L.; Vale, S.H.L.; Brandão-Neto, J. Bioelectrical Impedance Vector Analysis and Phase Angle on Different Oral Zinc Supplementation in Eutrophic Children: Randomized Triple-Blind Study. Nutrients 2019, 11, 1215.

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