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Determination of lung volume by hydrogen dilution at the time of underwater weighing

Pasco, J. A., Rutishauser, I. H. E. and Read, R. S. D. 1986, Determination of lung volume by hydrogen dilution at the time of underwater weighing, Nutrition research, vol. 6, no. 10, pp. 1139-1145.

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Title Determination of lung volume by hydrogen dilution at the time of underwater weighing
Author(s) Pasco, J. A.
Rutishauser, I. H. E.
Read, R. S. D.
Journal name Nutrition research
Volume number 6
Issue number 10
Start page 1139
End page 1145
Total pages 7
Publisher Pergamon Press
Place of publication New York, N.Y.
Publication date 1986
ISSN 0271-5317
1747-7174
Keyword(s) body composition
densitometry
hydrogen
lung volume
Summary A method for measuring the volume of air in the lungs at the time of underwater weighing is described. A low concentration of hydrogen is used as a tracer gas in a closed-circuit rebreathing system. At the end of a normal exhalation the subject is connected to a respiratory bladder containing 2 L of air with a small admixture of hydrogen. After an equilibration period of five breaths the subject submerges completely, together with the bladder, and underwater weight is measured. Lung volume, at the time of weighing, is determined by hydrogen dilution. Using this method, the coefficient of variation for body density in the same individual was 0.23%.
Language eng
Field of Research 119999 Medical and Health Sciences not elsewhere classified
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©1986, Pergamon Journals
Persistent URL http://hdl.handle.net/10536/DRO/DU:30042823

Document type: Journal Article
Collection: School of Medicine
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