| Pulmonary diffusing capacity after maximal exercise. | |
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MedLine Citation:
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PMID: 8125877 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To determine the effect of maximal exercise on alveolocapillary membrane diffusing capacity (Dm), 12 professional handball players aged 23.4 +/- 3.3 (SD) yr were studied before and during early recovery from a progressive maximal exercise [immediately (t0), 15 min, and 30 min (t30) after exercise]. Lung capillary blood volume and Dm were determined in a one-step maneuver by simultaneous measurement of CO and NO lung transfer (DLCO and DLNO, respectively) with use of the single-breath breath-hold method. At t0, DLCO was elevated (13.1 +/- 12.0%; P < 0.01) but both DLNO and Dm for CO remained unchanged. Between t0 and t30, both DLCO and DLNO decreased significantly. At t30, DLCO was not different from the control resting value. DLNO (and consequently Dm for CO) was significantly lower than the control value at t30 (-8.9 +/- 8.1%; P < 0.01). Lung capillary blood volume was elevated at t0 (18.0 +/- 19.0%; P < 0.01) but progressively decreased to near control resting values at t30. Differences in the postexercise kinetics of both DLCO and DLNO point to a role of the transient increase in pulmonary vascular recruitment during the recovery period. We concluded that Dm was somewhat decreased in the 30 min after maximal exercise of short duration, but the exact pulmonary mechanisms involved remain to be elucidated. |
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Authors:
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G Manier; J Moinard; H Stoïcheff |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of applied physiology (Bethesda, Md. : 1985) Volume: 75 ISSN: 8750-7587 ISO Abbreviation: J. Appl. Physiol. Publication Date: 1993 Dec |
Date Detail:
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Created Date: 1994-04-11 Completed Date: 1994-04-11 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8502536 Medline TA: J Appl Physiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 2580-5 Citation Subset: IM |
Affiliation:
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Laboratoire de Physiologie, Faculté de Médecine Victor Pachon, Université de Bordeaux II, France. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Blood Gas Analysis Blood Volume / physiology Carbon Monoxide / pharmacokinetics Exercise / physiology* Exercise Test Heart Rate / physiology Humans Lung Volume Measurements Male Nitric Oxide / pharmacokinetics Pulmonary Diffusing Capacity / physiology* |
| Chemical | |
Reg. No./Substance:
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10102-43-9/Nitric Oxide; 630-08-0/Carbon Monoxide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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