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Respiratory weight losses during exercise.Evaporative water loss from the respiratory tract was determined over a wide range of exercise. The absolute humidity of the expired air was the same at all levels of exercise and equal to that measured at rest. The rate of respiratory water loss during exercise was found to be 0.019 of the oxygen uptake times (44 minus water vapor pressure). The rate of weight loss during exercise due to CO2-O2 exchange was calculated. For exercise at oxygen consumption rates exceeding 1.5 L/min in a dry environment with a water vapor pressure of 10 mm Hg, the total rate of weight loss via the respiratory tract is on the order of 2-5 g/min.
Document ID
19720042947
Document Type
Reprint (Version printed in journal)
Authors
Mitchell, J. W.
Nadel, E. R.
Stolwijk, J. A. J. (Yale University New Haven, Conn., United States)
Date Acquired
August 6, 2013
Publication Date
April 1, 1972
Publication Information
Publication: Journal of Applied Physiology
Volume: 32
Subject Category
BIOTECHNOLOGY
Funding Number(s)
CONTRACT_GRANT: NIH-ES-00354
CONTRACT_GRANT: NAS9-9531
Distribution Limits
Public
Copyright
Other