Abstract:
INTRODUCTION:A paradox seems to exist: exercising leads to clotting activation in conventional clotting tests, but exercising persons have a low risk of thrombosis. In this study we tried to evaluate the effect of exercise performance status on in vitro plasma thrombin generation, which represents an overall function test of hemostasis. MATERIALS AND METHODS:We compared 56 trained subjects to 98 healthy age matched sedentary volunteers. Blood samples were analyzed for thrombin generation using calibrated automated thrombography. Microparticles were quantified using ELISA. Additionally prothrombin fragments 1 + 2, thrombin-antithrombin complex, tissue factor pathway inhibitor, antithrombin and prothrombin were measured. The group of the trained subjects performed an incremental cycle-ergometer exercise test after taking the blood sample. RESULTS:A significantly lower endogenous thrombin potential was observed in the group of the trained subjects compared to the sedentary individuals (p = 0.007). Microparticles (ELISA) were significantly lower in the trained subjects compared to the sedentary subjects (p = 0.001). Prothrombin fragments 1 + 2 (p < 0.001) and thrombin-antithrombin complex (p = 0.01) were significant higher in the trained subjects and antithrombin (p = 0.02) as well as prothrombin (p < 0.0001) were significantly lower in this group, whereas tissue factor pathway inhibitor values did not show significant differences. Both maximal and submaximal power output was significantly negatively related to endogenous thrombin potential (r = -0.43, r = -0.45) and thrombin peak (r = -0.44, r = -0.42). CONCLUSIONS:Trained subjects have a lower endogenous thrombin potential than sedentary subjects possibly explaining the lower incidence of thrombosis in this group despite a higher acute clotting activation during strenuous exercise.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Cimenti C,Schlagenhauf A,Leschnik B,Schretter M,Tschakert G,Gröschl W,Seibert FJ,Hofmann P,Muntean WEdoi
10.1016/j.thromres.2013.04.009subject
Has Abstractpub_date
2013-06-01 00:00:00pages
e281-5issue
6eissn
0049-3848issn
1879-2472pii
S0049-3848(13)00141-2journal_volume
131pub_type
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pub_type: 临床试验,杂志文章,随机对照试验
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