en تأثیر تمرین هرمی فزآینده بر سطوح نیم‌رخ لیپیدی و فیبرینوژن پلاسما، و ویسکوزیته خون در مردان جوان تمرین نکرده فيزيولوژی ورزشی و شاخه‌های وابسته بدان Sport Physiology and its related branches مقاله اصیل Original Article <p align="justify"><font face="times new roman,times,serif" size="2">The present study examined the effects of progressive exercise (pyramidal) short-term program on plasma fibrinogen, lipid profile and blood viscosity in untrained young men. Changes and imbalances in homeostasis lead to cause of heart attacks. There is conflicting information about the effect of exercise on these factors. 19 young healthy untrained men were randomly assigned to the exercise group (n = 10) and controls (n = 9) groups. Exercise training group with increasing severity of heart maximum 25 to 100 percent began to run the practice (pyramid) in 42-minute sessions, 3 times a week, for 4 weeks. There was no significant difference between the parameters of body composition, control, and training groups. Levels of total cholesterol and low density lipoprotein density and viscosity of the blood significantly decreased in the training group compared with the control group (p value, respectively is 0.001, 0.001 and 0.035). The changes in the concentration of fibrinogen, high-density lipoprotein and triglycerides in both groups are not significant in both groups (p value, respectively is 0.645, 0.993 and 0.421). The present results show that it is possible that progressive training (pyramidal) short-term program changed the levels of cardiovascular risk factors by reducing blood viscosity. </font></p> progressive exercise pyramid, fibrinogen, blood viscosity, lipid profile 47 56 http://aassjournal.com/browse.php?a_code=A-11-185-1&slc_lang=en&sid=1 Abbass Ghanbari-Niaki عباس قنبری نیاکی ghanbara@umz.ac.ir 10031947532846004094 10031947532846004094 No Exercise Biochemistry Division, Faculty of Physical Education and Sport Sciences, Mazandaran University گروه فیزیولوژی ورزشی، دانشکده تربیت‌بدنی و علوم ورزشی، دانشگاه مازندران Mostafa Behzad Khameslo مصطفی بهزاد خامسلو mostafabehzadkh@yahoo.com 10031947532846004095 10031947532846004095 Yes Sama Technical and Vocational Training college, Islamic Azad University, Sari Branch آموزشکده فنی حرفه‌ای سماء، دانشگاه آزاد اسلامی، واحد ساری Seyed Morteza Tayebi سید مرتضی طیبی tayebism@gmail.com 10031947532846004096 10031947532846004096 No Faculty of Physical Education and Sport Science, Allameh Tabatabaí University گروه فیزیولوژی ورزشی، دانشکده تربیت‌بدنی و علوم ورزشی، دانشگاه علامه طباطبایی