Bioelectrical impedance vector analysis for evaluating zinc supplementation in prepubertal and healthy children

  • Márcia Marília Gomes Dantas Federal University of Rio Grande do Norte (UFRN)
  • Érika Dantas Medeiros Rocha Federal University of Rio Grande do Norte (UFRN)
  • Naira Josele Neves Brito Federal University of Rio Grande do Norte (UFRN)
  • Mardone Cavalcante França Federal University of Rio Grande do Norte (UFRN)
  • Maria das Graças Almeida Federal University of Rio Grande do Norte (UFRN)
  • José Brandão-Neto Federal University of Rio Grande do Norte (UFRN)
Keywords: Human nutrition

Abstract

Background: The prevalence of abnormal nutritional status has increased in children and adolescents. Nutritional assessment is important for monitoring the health and nutritional status. Bioelectrical impedance vector analysis (BIVA) combines changes in tissue hydration and structure and body composition that can be assessed.

Objectives: The objective of this study was to use BIVA to evaluate nutritional status in 60 prepubertal children, aged between 8 and 9 years, supplemented with zinc, to detect possible changes in body composition.

Design: We performed a randomized, controlled, triple-blind study. The children were divided into the control group (CG; sorbitol 10%, n=29) or the experimental group (EG; 10 mg Zn/day, n=31), and the duration of the experiment was 3 months. Anthropometric assessments were performed for all of the children.

Results: The body mass index-for-age increased after oral zinc supplementation in the EG (p=0.005). BIVA indicated that the CG demonstrated a tendency for dehydration and decreased soft tissue and the EG demonstrated a tendency for increased soft tissue, primarily the fat-free mass. After analyses of BIVA ellipses, we observed that this method could detect improvements in body composition in healthy children supplemented with zinc.

Conclusions: These results suggest that BIVA could be an auxiliary method for studying a small population undergoing zinc intervention.

Keywords: bioelectrical impedance vector analysis; zinc supplementation; body composition; children

(Published: 29 September 2015)

Citation: Food & Nutrition Research 2015, 59: 28918 - http://dx.doi.org/10.3402/fnr.v59.28918

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Author Biographies

Márcia Marília Gomes Dantas, Federal University of Rio Grande do Norte (UFRN)

Department of Internal Medicine

MSc

 

Érika Dantas Medeiros Rocha, Federal University of Rio Grande do Norte (UFRN)

Department of Intenal Medicine

PhD

Naira Josele Neves Brito, Federal University of Rio Grande do Norte (UFRN)

Department of Internal Medicine

PhD

Mardone Cavalcante França, Federal University of Rio Grande do Norte (UFRN)

Department of Statistics

PhD

Associate Professor

Maria das Graças Almeida, Federal University of Rio Grande do Norte (UFRN)

Department of Clinical and Toxicological Analyses

PhD

Associate Professor

José Brandão-Neto, Federal University of Rio Grande do Norte (UFRN)

Department of Internal Medicine

MD, PhD

Full Professor

 

Published
2015-09-29
How to Cite
Dantas, M. M. G., Rocha, Érika D. M., Brito, N. J. N., França, M. C., Almeida, M. das G., & Brandão-Neto, J. (2015). Bioelectrical impedance vector analysis for evaluating zinc supplementation in prepubertal and healthy children. Food & Nutrition Research, 59. https://doi.org/10.3402/fnr.v59.28918
Section
Original Articles

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