Comparison of methods of estimating body fat in normal subjects and cancer patients

Journal Article · Tue Dec 01 00:00:00 EST 1981 · Am. J. Clin. Nutr.; (United States)

OSTI ID:5314470

Cohn, S H ^[1]; Ellis, K J; Vartsky, D; Sawitsky, A; Gartenhaus, W; Yasumura, S; Vaswani, A N

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1. 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), Vol. 34
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
59 BASIC BIOLOGICAL SCIENCES
ADIPOSE TISSUE
ACTIVATION ANALYSIS
NONDESTRUCTIVE ANALYSIS
COMPARATIVE EVALUATIONS
BODY COMPOSITION
DENSITY
MAN
NEUTRON REACTIONS
NITROGEN
PATIENTS
POTASSIUM
WATER
ALKALI METALS
ANIMAL TISSUES
ANIMALS
BARYON REACTIONS
BODY
CHEMICAL ANALYSIS
CONNECTIVE TISSUE
ELEMENTS
HADRON REACTIONS
HYDROGEN COMPOUNDS
MAMMALS
METALS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRIMATES
TISSUES
VERTEBRATES
400101* - Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
551001 - Physiological Systems- Tracer Techniques