| Optimum sampling times for maximum blood lactate levels after exposures to sustained +Gz. | |
MedLine Citation:
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PMID: 3355467 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Six male subjects wearing anti-G suits were exposed to +4.5 Gz and +4.5-7 Gz simulated aerial combat maneuvers (SACM), sustained until terminated because of fatigue. Before and after each G exposure, venous blood was withdrawn (using the finger-prick method) and analyzed for lactate concentration. Five samples were taken serially, at 1, 3, 6, 10, and 20 min after each G exposure to determine the maximum (peak) level of blood lactate. Individual lactate levels varied, with peaks at 1, 3, and 6 min; however, group levels were maximum at 3 min after the G exposure. Maximum lactate levels (mean +/- S.D.) of 27.8 +/- 11.3 mg% and 42.7 +/- 19.4 mg% were found for the 4.5-G and SACM exposures, respectively. Lactate recoveries were a simple exponential function, with a half life of approximately 10 min. The relationship between these data, following G exposure, and those measured after aerobic physical activities, is discussed. |
Authors:
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A Tamir; R R Burton; E M Forster |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Aviation, space, and environmental medicine Volume: 59 ISSN: 0095-6562 ISO Abbreviation: Aviat Space Environ Med Publication Date: 1988 Jan |
Date Detail:
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Created Date: 1988-05-06 Completed Date: 1988-05-06 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7501714 Medline TA: Aviat Space Environ Med Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 54-6 Citation Subset: IM; S |
Affiliation:
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Crew Technology Division, USAF School of Aerospace Medicine, Brooks Air Force Base, TX 78235-5301. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Gravitation* Gravity Suits Humans Lactates / blood* Lactic Acid Male Specimen Handling* Time Factors United States |
| Chemical | |
Reg. No./Substance:
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0/Lactates; 50-21-5/Lactic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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