Body composition of adult cystic fibrosis patients and control subjects as determined by densitometry, bioelectrical impedance, total-body electrical conductivity, skinfold measurements, and deuterium oxide dilution

This study contrasts body compositions (by six methods) of eight cystic fibrosis (CF) subjects with those of eight control subjects matched for age, height, and sex. CF subjects weighed 84% as much as control subjects. Densitometry and two bioelectrical impedance-analysis methods suggested that redu...

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Bibliographic Details
Published inThe American journal of clinical nutrition Vol. 52; no. 2; pp. 209 - 213
Main Authors Newby, MJ, Keim, NL, Brown, DL
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.08.1990
Subjects
550901 - Pathology- Tracer Techniques
ADIPOSE TISSUE
Adult
ANIMAL TISSUES
BASIC BIOLOGICAL SCIENCES
BIOELECTRICITY
BODY
BODY COMPOSITION
Body Water
Body Weight
CONNECTIVE TISSUE
cystic fibrosis
Cystic Fibrosis - physiopathology
Densitometry
DEUTERIUM
Deuterium Oxide
diagnostic use
DISEASES
Electric Conductivity
electrical conductivity
ELECTRICITY
Female
Humans
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
impedance
Indicator Dilution Techniques
ISOTOPE APPLICATIONS
ISOTOPES
laboratory techniques
LIGHT NUCLEI
Male
measurement
men
NUCLEI
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
PATHOGENESIS
physiopathology
RESPIRATORY SYSTEM DISEASES
Skinfold Thickness
STABLE ISOTOPES
TISSUES
TRACER TECHNIQUES
WATER
women
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Summary:This study contrasts body compositions (by six methods) of eight cystic fibrosis (CF) subjects with those of eight control subjects matched for age, height, and sex. CF subjects weighed 84% as much as control subjects. Densitometry and two bioelectrical impedance-analysis methods suggested that reduced CF weights were due to less lean tissue (10.7, 9.5, and 10.4 kg). Total-body electrical conductivity (TOBEC) and skinfold-thickness measurements indicated that CF subjects were leaner than control subjects and had less fat (5.4 and 3.6 kg) and less lean (5.2 and 7 kg) tissue. D2O dilution showed a pattern similar to TOBEC (8.3 kg less lean, 2.7 kg less fat tissue). Densitometry estimates of fat (mass and percent) were not correlated (r < 0.74, p > 0.05) with any other method for CF subjects but were correlated with all other methods for control subjects. CF subjects contained less fat and lean tissue than did control subjects. Densitometry by underwater weighing is unsuitable for assessing body composition of CF patients.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0002-9165
1938-3207
DOI:10.1093/ajcn/52.2.209