Predicting fat-free mass in children using bioimpedance analysis.
Acta Diabetol
; 40 Suppl 1: S212-5, 2003 Oct.
Article
em En
| MEDLINE
| ID: mdl-14618476
ABSTRACT
Body composition assessment is a useful procedure for the study of nutritional status and water distribution. In adults, it is a predictor of morbidity and mortality, since body fatness is associated with risk factors for cardiovascular disease. Bioelectric impedance analysis (BIA) is a simple, safe, and inexpensive method for assessment of body composition both in pediatric and adult subjects. The aim of our study was to validate the impedance index, ZI (H(2)/Z, height in cm(2)/impedance), as a predictor factor of fatfree mass (FFM) and fat mass (FM) in a sample ( n=75) of normal children. Dual-energy X-ray absorptiometry (DXA) was chosen as reference method. Despite some minor bias, DXAis considerably less expensive and easier to administer in pediatric subjects than other established gold standard reference methods for assessing body composition. ZI values were highly correlated with FFM measured with DXA. The following equations were obtained from the regression analysis:
(a). male subjects, FFM(DXA)=0.6375 (ZI)+5.9913, r(2)=0.897, p<0.0001; (b). female subjects, FFM(DXA)=0.7597 (ZI)+ 3.5853, r(2)=0.903, p<0.0001. These data support the notion that BIA alone can be used as a surrogate to measure FFM in a pediatric sample.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Composição Corporal
/
Índice de Massa Corporal
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Limite:
Child
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Acta Diabetol
Assunto da revista:
ENDOCRINOLOGIA
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Itália