Document Detail


Acute dynamic exercise increases fibrinolytic activity.
MedLine Citation:
PMID:  7792744     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The influence of acute bouts of dynamic exercise on plasma tissue plasminogen activator (tPA), plasminogen activator inhibitor (PAI) and fibrinogen was investigated on nine healthy non-smoking men aged 23 to 37 years. Subjects performed maximal and two submaximal (duration 30 min, intensity 50% [aerobic threshold] and 78% [anaerobic threshold]VO2max) bicycle ergospirometry tests separated by seven days. The order of the submaximal tests was randomized. Blood samples were drawn before, immediately after and 24 h after each test. Plasma tPA and PAI activities were measured amidolytically, and fibrinogen concentration by thrombin method. All postexercise values were corrected for the change in plasma volume. The pre-exercise tPA and PAI activities and fibrinogen concentration were similar in each tests. tPA activity increased during each test (from 2.0 [SEM 0.24] IU/ml to 20.3 [3.14] during maximal, 2.0 [0.22] to 19.0 [2.59] during anaerobic threshold test, 1.8 [0.22] to 5.5 [0.82] during aerobic threshold; p < 0.001 during all tests, p = 0.01 aerobic threshold vs maximal and anaerobic threshold). PAI activity decreased during maximal (from 6.6 [2.51] AU/ml to 2.0 [2.00], p < 0.05) and anaerobic threshold (5.0 [2.07] to 0.2 [0.22], p < 0.01) tests but not during aerobic threshold test (7.0 [3.69] to 4.5 [2.93], p = 0.123). One subject had clearly higher pre-exercise PAI activity and smaller tPA response to exercise as compared to other subjects. All 24 h post-exercise activities were similar to pre-exercise values. Plasma fibrinogen concentration did not change during any tests.(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
T Rankinen; S Väisänen; I Penttilä; R Rauramaa
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Thrombosis and haemostasis     Volume:  73     ISSN:  0340-6245     ISO Abbreviation:  Thromb. Haemost.     Publication Date:  1995 Feb 
Date Detail:
Created Date:  1995-07-27     Completed Date:  1995-07-27     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7608063     Medline TA:  Thromb Haemost     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  281-6     Citation Subset:  IM    
Affiliation:
Kuopio Research Institute of Exercise Medicine, Finland.
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MeSH Terms
Descriptor/Qualifier:
Adult
Exercise / physiology*
Fibrinolysis / physiology*
Humans
Male
Plasminogen Inactivators / metabolism*
Tissue Plasminogen Activator / metabolism*
Chemical
Reg. No./Substance:
0/Plasminogen Inactivators; EC 3.4.21.68/Tissue Plasminogen Activator

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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