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Title: Potential errors in body composition as estimated by whole body scintillation counting

Abstract

Vigorous exercise has been reported to increase the apparent potassium content of athletes measured by whole body gamma ray scintillation counting of /sup 40/K. The possibility that this phenomenon is an artifact was evaluated in three cyclists and one nonathlete after exercise on the road (cyclists) or in a room with a source of radon and radon progeny (nonathlete). The apparent /sup 40/K content of the thighs of the athletes and whole body of the nonathlete increased after exercise. Counts were also increased in both windows detecting /sup 214/Bi, a progeny of radon. /sup 40/K and /sup 214/Bi counts were highly correlated (r = 0.87, p < 0.001). The apparent increase in /sup 40/K was accounted for by an increase in counts associated with the 1.764 MeV gamma ray emissions from /sup 214/Bi. Thus a failure to correct for radon progeny would cause a significant error in the estimate of lean body mass by /sup 40/K counting.

Authors:
; ; ;
Publication Date:
Research Org.:
Univ. of North Dakota, Grand Forks
OSTI Identifier:
6090330
Resource Type:
Journal Article
Journal Name:
J. Lab. Clin. Med.; (United States)
Additional Journal Information:
Journal Volume: 101:4
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; BODY COMPOSITION; POTASSIUM 40; WHOLE-BODY COUNTING; ERRORS; BISMUTH 214; EXERCISE; MEV RANGE 01-10; POTASSIUM; RADON; SCINTILLATION COUNTING; ALKALI METAL ISOTOPES; ALKALI METALS; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BISMUTH ISOTOPES; COUNTING TECHNIQUES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; ENERGY RANGE; FLUIDS; GASES; HEAVY NUCLEI; ISOTOPES; LIGHT NUCLEI; METALS; MEV RANGE; MINUTES LIVING RADIOISOTOPES; NONMETALS; NUCLEI; ODD-ODD NUCLEI; POTASSIUM ISOTOPES; RADIOISOTOPES; RARE GASES; YEARS LIVING RADIOISOTOPES; 550201* - Biochemistry- Tracer Techniques

Citation Formats

Lykken, G I, Lukaski, H C, Bolonchuk, W W, and Sandstead, H H. Potential errors in body composition as estimated by whole body scintillation counting. United States: N. p., 1983. Web.
Lykken, G I, Lukaski, H C, Bolonchuk, W W, & Sandstead, H H. Potential errors in body composition as estimated by whole body scintillation counting. United States.
Lykken, G I, Lukaski, H C, Bolonchuk, W W, and Sandstead, H H. 1983. "Potential errors in body composition as estimated by whole body scintillation counting". United States.
@article{osti_6090330,
title = {Potential errors in body composition as estimated by whole body scintillation counting},
author = {Lykken, G I and Lukaski, H C and Bolonchuk, W W and Sandstead, H H},
abstractNote = {Vigorous exercise has been reported to increase the apparent potassium content of athletes measured by whole body gamma ray scintillation counting of /sup 40/K. The possibility that this phenomenon is an artifact was evaluated in three cyclists and one nonathlete after exercise on the road (cyclists) or in a room with a source of radon and radon progeny (nonathlete). The apparent /sup 40/K content of the thighs of the athletes and whole body of the nonathlete increased after exercise. Counts were also increased in both windows detecting /sup 214/Bi, a progeny of radon. /sup 40/K and /sup 214/Bi counts were highly correlated (r = 0.87, p < 0.001). The apparent increase in /sup 40/K was accounted for by an increase in counts associated with the 1.764 MeV gamma ray emissions from /sup 214/Bi. Thus a failure to correct for radon progeny would cause a significant error in the estimate of lean body mass by /sup 40/K counting.},
doi = {},
url = {https://www.osti.gov/biblio/6090330}, journal = {J. Lab. Clin. Med.; (United States)},
number = ,
volume = 101:4,
place = {United States},
year = {Fri Apr 01 00:00:00 EST 1983},
month = {Fri Apr 01 00:00:00 EST 1983}
}