title: [Body composition in overweight children, healthy children as well as children with mucoviscidosis, measured by multifrequency impedance].
abstract: The body composition of a total of 90 children (aged 5-18) were subjected to multifrequency impedance measurement with a Human IM Scan impedance analyser. We compared data of 30 overweight children (17 boys, 13 girls; mean age 11.47 yrs, range: 4-17 yrs), 30 children with cystic fibrosis (12 boys, 18 girls; mean age 12.8 yrs, range: 3-24 yrs) and 30 healthy children (12 boys, 18 girls; mean age 13.4 yrs, range 7-18 yrs). The percentage of fat mass was found to be inversely proportional to total body water. Extracellular water expressed as a percentage of the total body water was significantly higher in overweight children than in the other two groups: (p < 0.01) between children with cystic fibrosis and overweight children, (p < 0.05) between healthy children and overweight children. Extracellular water expressed as a percentage of total body water was lower in children with cystic fibrosis than in healthy children (p < 0.05). The ratios of extracellular mass and body cell mass to body weight were significantly lower in overweight children than in healthy children (p < 0.01) or in children with cystic fibrosis (p < 0.01). The ratio of exchangeable sodium and potassium was lower in all three groups than the normal value given for adults (> 0.87), but in overweight children it was significantly higher than in the other two groups; (p < 0.01) between children with cystic fibrosis and overweight children, (p < 0.05) between healthy children and overweight children. Multifrequency impedance measurement is reliable, fast, non-invasive, easy to carry out, therefore we consider it very useful in determining the body composition of children in various pathological conditions.
authors.affiliation: Belgyógyászati Osztály, Heim Pál Gyermekkórház Budapest.
authors.forename: A
authors.initials: A
authors.lastname: Madarasi
authors.forename: K
authors.initials: K
authors.lastname: Holics
authors.forename: R
authors.initials: R
authors.lastname: Ujhelyi
authors.forename: A
authors.initials: A
authors.lastname: Czinner
mesh_terms: D000293:Adolescent; D001823:Body Composition; D002648:Child; D002675:Child, Preschool; D003550:Cystic Fibrosis / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D009767:Obesity, Morbid / Q000503:physiopathology*; D010992:Plethysmography, Impedance
vernacular_title: A testösszetétel multifrekvenciás impedanciaméréssel nyert eredményei elhízott, egészséges és mucoviscidosisos gyermekekben.