| The time course of phosphorylcreatine resynthesis during recovery of the quadriceps muscle in man. | |
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MedLine Citation:
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PMID: 1034909 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The time course of phosphorylcreatine (PC) resynthesis in the human m. quadriceps femoris was studied during recovery from exhaustive dynamic exercise and from isometric contraction sustained to fatigue. The immediate postexercise muscle PC content after either form of exercise was 15-16% of the resting muscle content. The time course of PC resynthesis during recovery was biphasic exhibiting a fast and slow recovery component. The half-time for the fast component was 21-22s but this accounted for a smaller fraction of the total PC restored during recovery from the isometric contraction than after the dynamic exercise. The half-time for the slow component was in each case more than 170 s. After 2 and 4 min recovery the total amount of PC resynthesized after the isometric exercise were significantly lower than from the dynamic exercise. Occlusion of the circulation of the quadriceps completely abolished the resynthesis of PC. Restoration of resynthesis occurred only after release of occlusion. |
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Authors:
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R C Harris; R H Edwards; E Hultman; L O Nordesjö; B Nylind; K Sahlin |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Pflügers Archiv : European journal of physiology Volume: 367 ISSN: 0031-6768 ISO Abbreviation: Pflugers Arch. Publication Date: 1976 Dec |
Date Detail:
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Created Date: 1977-04-01 Completed Date: 1977-04-01 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0154720 Medline TA: Pflugers Arch Country: GERMANY, WEST |
Other Details:
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Languages: eng Pagination: 137-42 Citation Subset: IM; S |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adenosine Triphosphate
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metabolism Constriction Humans Isometric Contraction Muscles / blood supply, metabolism* Phosphocreatine / biosynthesis* Physical Exertion* Time Factors |
| Chemical | |
Reg. No./Substance:
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56-65-5/Adenosine Triphosphate; 67-07-2/Phosphocreatine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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