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Journal of Thrombosis and Thrombolysis

, Volume 26, Issue 3, pp 203–210 | Cite as

Age-related effects of regular physical activity on hemostatic factors in men

  • Jun SugawaraEmail author
  • Koichiro Hayashi
  • Sumiko Kurachi
  • Taku Tanaka
  • Takashi Yokoi
  • Kotoku Kurachi
Article

Abstract

Background Age-related changes in blood coagulation and fibrinolytic factors are associated with an increase in risk of thrombotic events. The purpose of this study was to assess the effects of age, regular aerobic exercise and detraining on blood coagulation and fibrinolytic factors in men. Methods Initially, 41 sedentary and 42 physically active men (20–64 years) were analyzed for plasma levels of coagulation and fibrinolytic factors. Twelve sedentary men were then subjected to 16-week aerobic exercise training and subsequent 2-week detraining. Their blood samples taken at rest were assayed for activity levels of prothrombin, coagulation factor (F) V, VII, VIII, IX, X, XI and XIII, antithrombin III, protein C and plasminogen, and for antigen levels of fibrinogen, prothrombin fragment 1 + 2 (F1 + 2), FIX, protein C, tissue-type plasminogen activator (tPA), plasminogen activator inhibitor 1 (PAI-1) and tPA/PAI-1 complex. Results Plasma levels of most coagulation factors, particularly for fibrinogen and FIX antigens as well as FXIII activity significantly increased with aging in sedentary men, while that tendency disappeared in physically active men. By the exercise training, plasma antigen and/or activity levels of most blood coagulation factors except for prothrombin and FIX decreased. These training-effects, however, disappeared after detraining, and in some cases even rebounded to higher levels than those of pre-training. Plasma antigen levels of tPA, PAI-1 and tPA/PAI-1 complex decreased with the training and remained low even after detraining. Conclusion Regular aerobic exercises give complex effects on expression of hemostatic factors, overall favoring the hemostatic balance to less thrombotic, partly cancelling out the age effects.

Keywords

Aging Exercise Coagulation system Fibrinolytic system 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Jun Sugawara
    • 1
    Email author
  • Koichiro Hayashi
    • 1
  • Sumiko Kurachi
    • 2
  • Taku Tanaka
    • 2
  • Takashi Yokoi
    • 1
  • Kotoku Kurachi
    • 2
  1. 1.Institute for Human Science and Biomedical EngineeringNational Institute of Advanced Industrial Science and Technology (AIST)TsukubaJapan
  2. 2.Age Dimension Research CenterNational Institute of Advanced Industrial Science and TechnologyTsukubaJapan

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