Document Type : Research Paper I Open Access I Released under CC BY-NC 4.0 license

Authors

• mohammadreza kordi ¹
• rasoul dokhtabdiyn ²
• azizeh ahmadi ³
• rahman soori ¹
• ameneh akovan ⁴

¹ Department of Sport Biosciences, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran

² Phd of physical education, Faculty of Physical Education, University of Tehran; iran.

³ , Phd of physical education, Faculty of Physical Education and Sport Sciences, University of Tabriz, Tabriz, Iran

⁴ Master of physical education, Faculty of Physical Education and Sport Sciences, Islamic Azad University, Shushtar partside , Shushtar, Iran

Abstract

Introduction: : The purpose of this study was to compare the effect of two types high intensity interval training (HIIT) on some coagulation and fibrinolysis markers in inactive young overweight and obese women.

Methods: 24 girls with mean age 25/75±1/18 y, randomly divided into three experimental group: HIIT1(n=8), HIIT2 (n=8) and control (n=8). group HIIT1 performed four sets of 30 seconds of running per session with an intensity of 19 to 20 the rate of perceived exertion (RPE) Borg scale and two minutes of rest between sets. HIIT2 group ran four sets of 60s with the same intensity and four minutes rest between sets, training protocol performed three times a week and four weeks. 48 hours before and after the exercise, blood samples were taken. Mixed analysis of variance (ANOVA) test was used to analyze the data at the significant level (P <0.05).

Results: Only in HIIT1 group P-LCR (P=0.048) and MPV (P=0.001) had significantly changes. Plasma fibrinogen in each the experimental groups significantly decreased (P<0.05), the difference between groups was significant only between HIIT1 and control groups (P=0.025). t-PA and PAI-1 levels in the two experimental groups showed a significant increase and decrease, respectively (p<0.05). PPT index showed a significant change only in HIIT1 group (p = 0.042).

Conclusion: performing four weeks of HIIT may reduce coagulation parameters and improve the fibrinolysis process. It seems that in short term HIIT (30s) with better economic activity and lower total volume than midterm HIIT (60 s) is obtained usefulness benefits.

Keywords

• mean platelet volume (MPV)
• plasminogen activator inhibitor-1 (PAI-1)
• prothrombin time (PT) platelet distribution range (PDW)
• relative thromboplastin time (PTT)
• tissue plasminogen activator (t-PA) the ratio of large cells to platelets (P-LCR)

Main Subjects

• Exercise Physiology