Journal of Applied Physiology
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J Appl Physiol 18: 447-456, 1963;
8750-7587/63 $5.00
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Effect of exercise on pulmonary diffusing capacity

G. M. Turino 1, E. H. Bergofsky 1, R. M. Goldring 1, and A. P. Fishman 1

1 Department of Medicine, Columbia University College of Physicians and Surgeons, and Presbyterian Hospital, New York City

The effect of graded exercise on the pulmonary diffusing capacity for both oxygen and carbon monoxide measured simultaneously was studied in healthy young adults by steady-state methods. Pulmonary diffusing capacity for oxygen increases progressively with increasing severity of exercise; it exceeds the DlCO at high levels of exercise by amounts greater than can be accounted for by the difference in diffusivity of the test gases. Diffusing capacity for carbon monoxide increases less than DlOO2 for comparable grades of exercise but no definite plateau value could be established. The supine or upright body position does not influence the values of either DlOO2 or DlCO during exercise. Diffusing capacity of the lung for oxygen does not limit the maximum levels of exercise which may be achieved by normal man.

Submitted on August 6, 1962




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Y.-C. T. Huang, S. R. O'Brien, and N. R. MacIntyre
Intrabreath Diffusing Capacity of the Lung in Healthy Individuals at Rest and During Exercise*
Chest, July 1, 2002; 122(1): 177 - 185.
[Abstract] [Full Text] [PDF]


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