Comparison of methods of estimating body fat in normal subjects and cancer patients
Journal Article
·
· Am. J. Clin. Nutr.; (United States)
OSTI ID:5314470
- Brookhaven National Lab., Upton, NY
Total body fat can be indirectly estimated by the following noninvasive techniques: determination of lean body mass by measurement of body potassium or body water, and determination of density by underwater weighing or by skinfold measurements. The measurement of total body nitrogen by neutron activation provides another technique for estimating lean body mass and hence body fat. The nitrogen measurement can also be combined with the measurement of total body potassium in a two compartment model of the lean body mass from which another estimate of body fat can be derived. All of the above techniques are subject to various errors and are based on a number of assumptions, some of which are incompletely validated. These techniques were applied to a population of normal subjects and to a group of cancer patients. The advantages and disadvantages of each method are discussed in terms of their ability to estimate total body fat.
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 5314470
- Journal Information:
- Am. J. Clin. Nutr.; (United States), Journal Name: Am. J. Clin. Nutr.; (United States) Vol. 34; ISSN AJCNA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101* -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
551001 -- Physiological Systems-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ACTIVATION ANALYSIS
ADIPOSE TISSUE
ALKALI METALS
ANIMAL TISSUES
ANIMALS
BARYON REACTIONS
BODY
BODY COMPOSITION
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
CONNECTIVE TISSUE
DENSITY
ELEMENTS
HADRON REACTIONS
HYDROGEN COMPOUNDS
MAMMALS
MAN
METALS
NEUTRON REACTIONS
NITROGEN
NONDESTRUCTIVE ANALYSIS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OXYGEN COMPOUNDS
PATIENTS
PHYSICAL PROPERTIES
POTASSIUM
PRIMATES
TISSUES
VERTEBRATES
WATER
400101* -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
551001 -- Physiological Systems-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ACTIVATION ANALYSIS
ADIPOSE TISSUE
ALKALI METALS
ANIMAL TISSUES
ANIMALS
BARYON REACTIONS
BODY
BODY COMPOSITION
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
CONNECTIVE TISSUE
DENSITY
ELEMENTS
HADRON REACTIONS
HYDROGEN COMPOUNDS
MAMMALS
MAN
METALS
NEUTRON REACTIONS
NITROGEN
NONDESTRUCTIVE ANALYSIS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OXYGEN COMPOUNDS
PATIENTS
PHYSICAL PROPERTIES
POTASSIUM
PRIMATES
TISSUES
VERTEBRATES
WATER