| Heart rate, alveolar gases and blood lactate during synchronized swimming. | |
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MedLine Citation:
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PMID: 8497011 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Heart rate, alveolar gas partial pressures and blood lactate (BLa) concentration were measured during synchronized swimming in six subjects. During upside-down breath-holding lasting 50 s, heart rate fell progressively from 98 +/- 14 to 70 +/- 7 beats min-1 (mean +/- S.D.). While breath-holding during the compulsory figures, the subjects' heart rate increased to 142 +/- 5 beats min-1 and then fell to 72 +/- 10 beats min-1. At the end of breath-holding, alveolar oxygen pressure had fallen significantly (60 mmHg), whereas alveolar carbon dioxide pressure showed only minor changes (48 mmHg). The increase in BLa concentration due to the execution of compulsory figures was approximately 1 mM; in the free routines, BLa concentration increased by 3.4 +/- 0.5 mM. The net energy cost of completing a compulsory figures lasting 45 s was 34.6 kJ. |
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Authors:
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F Figura; G Cama; L Guidetti |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of sports sciences Volume: 11 ISSN: 0264-0414 ISO Abbreviation: J Sports Sci Publication Date: 1993 Apr |
Date Detail:
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Created Date: 1993-06-18 Completed Date: 1993-06-18 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8405364 Medline TA: J Sports Sci Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 103-7 Citation Subset: IM; S |
Affiliation:
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Istituto di Fisiologia Umana, Universita La Sapienza, Roma, Italy. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Energy Metabolism Exercise / physiology* Female Heart Rate* Humans Lactates / blood* Partial Pressure Pulmonary Alveoli / metabolism Pulmonary Gas Exchange* Respiration / physiology Swimming / physiology* |
| Chemical | |
Reg. No./Substance:
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0/Lactates |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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