Gender-specific bioelectrical impedance reference values in healthy children
Summary: Background & Aims: Bioimpedance parameters are important for assessing children's body composition and health status. However, interpreting these parameters is still challenging, especially without reference data and cut-off points.This study aimed to describe gender-specific...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Clinical Nutrition Open Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667268523000190 |
| _version_ | 1797800913363009536 |
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| author | Karina Marques Vermeulen-Serpa Márcia Marília Gomes Dantas Lopes Carolinne Thaisa de Oliveira Fernandes Miranda Camila Xavier Alves Lucia Leite-Lais José Brandão-Neto Sancha Helena de Lima Vale |
| author_facet | Karina Marques Vermeulen-Serpa Márcia Marília Gomes Dantas Lopes Carolinne Thaisa de Oliveira Fernandes Miranda Camila Xavier Alves Lucia Leite-Lais José Brandão-Neto Sancha Helena de Lima Vale |
| author_sort | Karina Marques Vermeulen-Serpa |
| collection | DOAJ |
| description | Summary: Background & Aims: Bioimpedance parameters are important for assessing children's body composition and health status. However, interpreting these parameters is still challenging, especially without reference data and cut-off points.This study aimed to describe gender-specific reference phase angle (PhA) values and bioelectrical impedance vector analysis (BIVA) plots for healthy Brazilian children. Methods: Children aged 6–9 years were recruited from four public schools in Natal, Brazil. Anthropometric measurements and bioelectrical impedance (BIA) were performed. The values of age, weight (kg), height (cm), resistance (Ω), and reactance (Ω) were measured. Only eutrophic children were included according to body mass index (BMI)-for-age Z-score. BIVA 2002 software was used for the construction of BIVA plots. A P-value < 0.05 was accepted as statistically significant. Results: The sample size was 108 children (boys, n= 49; girls, n= 59) with average age of 8.4 ± 0.77. The girls showed significantly higher values of resistance and resistance normalized by height (R/H) (P < 0.05) compared to the boys. Considering the 95% confidence ellipses for mean impedance vectors, there was no difference between boys and girls. Mean gender-specific reference values for PhA in our sample were traced. The 75th tertil for PhA were 5.79° and 5.40° for boys and girls, respectively. When comparing our sample with other ethnic groups was observed that we had higher values of R/H (582.4–620.7 versus 552.5–589.5) and lower values of Xc/H (53.8–54,7 versus 61.7–64,7) and PhA (5.3–5.1 versus 5.5–6.3) for boys and girls, respectively. Conclusions: The PhA values and the new tolerance ellipses provided by our data reflect the normal growth and development of the prepubertal children studied. These reference values have significant clinical utility since they can point out altered body composition in other children due to pathophysiological conditions. Verifying changes in nutritional prognosis and hydration status allow early clinical and nutritional interventions. |
| first_indexed | 2024-03-13T04:42:54Z |
| format | Article |
| id | doaj.art-6704cd7475884b269298fa6d6d276e44 |
| institution | Directory Open Access Journal |
| issn | 2667-2685 |
| language | English |
| last_indexed | 2024-03-13T04:42:54Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Clinical Nutrition Open Science |
| spelling | doaj.art-6704cd7475884b269298fa6d6d276e442023-06-19T04:30:28ZengElsevierClinical Nutrition Open Science2667-26852023-06-01497787Gender-specific bioelectrical impedance reference values in healthy childrenKarina Marques Vermeulen-Serpa0Márcia Marília Gomes Dantas Lopes1Carolinne Thaisa de Oliveira Fernandes Miranda2Camila Xavier Alves3Lucia Leite-Lais4José Brandão-Neto5Sancha Helena de Lima Vale6Postgraduate Health Sciences Program, Federal University of Rio Grande Do Norte, Natal, Rio Grande do Norte, BrazilNutrition Department, Federal University of Rio Grande Do Norte, Natal, Rio Grande do Norte, Brazil; Corresponding author. Federal University of Rio Grande do Norte, 3000 Senador Salgado Filho Avenue, Natal, Rio Grande do Norte, 59078-970, Brazil. Tel.: +55 84 3342 2291.Postgraduate Medicine Program (Hematology), Federal University of Sao Paulo, Sao Paulo, BrazilNutritionist of the Northern League Riograndense Against Cancer, Natal, Rio Grande do Norte, BrazilNutrition Department, Federal University of Rio Grande Do Norte, Natal, Rio Grande do Norte, BrazilDepartment of Internal Medicine, Federal University of Rio Grande Do Norte, Natal, Rio Grande do Norte, BrazilNutrition Department, Federal University of Rio Grande Do Norte, Natal, Rio Grande do Norte, BrazilSummary: Background & Aims: Bioimpedance parameters are important for assessing children's body composition and health status. However, interpreting these parameters is still challenging, especially without reference data and cut-off points.This study aimed to describe gender-specific reference phase angle (PhA) values and bioelectrical impedance vector analysis (BIVA) plots for healthy Brazilian children. Methods: Children aged 6–9 years were recruited from four public schools in Natal, Brazil. Anthropometric measurements and bioelectrical impedance (BIA) were performed. The values of age, weight (kg), height (cm), resistance (Ω), and reactance (Ω) were measured. Only eutrophic children were included according to body mass index (BMI)-for-age Z-score. BIVA 2002 software was used for the construction of BIVA plots. A P-value < 0.05 was accepted as statistically significant. Results: The sample size was 108 children (boys, n= 49; girls, n= 59) with average age of 8.4 ± 0.77. The girls showed significantly higher values of resistance and resistance normalized by height (R/H) (P < 0.05) compared to the boys. Considering the 95% confidence ellipses for mean impedance vectors, there was no difference between boys and girls. Mean gender-specific reference values for PhA in our sample were traced. The 75th tertil for PhA were 5.79° and 5.40° for boys and girls, respectively. When comparing our sample with other ethnic groups was observed that we had higher values of R/H (582.4–620.7 versus 552.5–589.5) and lower values of Xc/H (53.8–54,7 versus 61.7–64,7) and PhA (5.3–5.1 versus 5.5–6.3) for boys and girls, respectively. Conclusions: The PhA values and the new tolerance ellipses provided by our data reflect the normal growth and development of the prepubertal children studied. These reference values have significant clinical utility since they can point out altered body composition in other children due to pathophysiological conditions. Verifying changes in nutritional prognosis and hydration status allow early clinical and nutritional interventions.http://www.sciencedirect.com/science/article/pii/S2667268523000190ChildrenNutritional assessmentBioelectrical impedance vector analysisBody compositionPhase angle |
| spellingShingle | Karina Marques Vermeulen-Serpa Márcia Marília Gomes Dantas Lopes Carolinne Thaisa de Oliveira Fernandes Miranda Camila Xavier Alves Lucia Leite-Lais José Brandão-Neto Sancha Helena de Lima Vale Gender-specific bioelectrical impedance reference values in healthy children Clinical Nutrition Open Science Children Nutritional assessment Bioelectrical impedance vector analysis Body composition Phase angle |
| title | Gender-specific bioelectrical impedance reference values in healthy children |
| title_full | Gender-specific bioelectrical impedance reference values in healthy children |
| title_fullStr | Gender-specific bioelectrical impedance reference values in healthy children |
| title_full_unstemmed | Gender-specific bioelectrical impedance reference values in healthy children |
| title_short | Gender-specific bioelectrical impedance reference values in healthy children |
| title_sort | gender specific bioelectrical impedance reference values in healthy children |
| topic | Children Nutritional assessment Bioelectrical impedance vector analysis Body composition Phase angle |
| url | http://www.sciencedirect.com/science/article/pii/S2667268523000190 |
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