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

Dantas MM, Rocha ÉD, Brito NJ, Alves CX, França MC, das Graças Almeida M, Brandão-Neto J - Food Nutr Res (2015)

Bottom Line: The body mass index-for-age increased after oral zinc supplementation in the EG (p=0.005).After analyses of BIVA ellipses, we observed that this method could detect improvements in body composition in healthy children supplemented with zinc.These results suggest that BIVA could be an auxiliary method for studying a small population undergoing zinc intervention.

View Article: PubMed Central - PubMed

Affiliation: Department of Internal Medicine, Postgraduate Program in Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil.

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.

No MeSH data available.


Related in: MedlinePlus

Serum zinc levels in the control group before placebo (CG-B) and after placebo (CG-A) and in the experimental group before zinc supplementation (EG-B) and after zinc supplementation (EG-A).
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Figure 0003: Serum zinc levels in the control group before placebo (CG-B) and after placebo (CG-A) and in the experimental group before zinc supplementation (EG-B) and after zinc supplementation (EG-A).

Mentions: The serum zinc levels were not significantly different between the groups (Fig. 3). However, zinc intake plus zinc supplementation was significantly different in the EG when compared with a CG (p<0.0001). Moreover, the tolerable upper zinc intake level did not exceed the expected values of 23 mg Zn per day for children in the EG. There were no side effects associated with the 10 mg Zn per day.


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

Dantas MM, Rocha ÉD, Brito NJ, Alves CX, França MC, das Graças Almeida M, Brandão-Neto J - Food Nutr Res (2015)

Serum zinc levels in the control group before placebo (CG-B) and after placebo (CG-A) and in the experimental group before zinc supplementation (EG-B) and after zinc supplementation (EG-A).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4590407&req=5

Figure 0003: Serum zinc levels in the control group before placebo (CG-B) and after placebo (CG-A) and in the experimental group before zinc supplementation (EG-B) and after zinc supplementation (EG-A).
Mentions: The serum zinc levels were not significantly different between the groups (Fig. 3). However, zinc intake plus zinc supplementation was significantly different in the EG when compared with a CG (p<0.0001). Moreover, the tolerable upper zinc intake level did not exceed the expected values of 23 mg Zn per day for children in the EG. There were no side effects associated with the 10 mg Zn per day.

Bottom Line: The body mass index-for-age increased after oral zinc supplementation in the EG (p=0.005).After analyses of BIVA ellipses, we observed that this method could detect improvements in body composition in healthy children supplemented with zinc.These results suggest that BIVA could be an auxiliary method for studying a small population undergoing zinc intervention.

View Article: PubMed Central - PubMed

Affiliation: Department of Internal Medicine, Postgraduate Program in Health Sciences, Federal University of Rio Grande do Norte, Natal, Brazil.

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.

No MeSH data available.


Related in: MedlinePlus