جستجوی مقالات مرتبط با کلیدواژه « فعالیت حاد ورزشی » در نشریات گروه « تربیت بدنی »

Since saffron has potential properties such as antioxidant and anti-inflammatory effects, it can play a role in modulating inflammatory factors caused by intense sports activities. Therefore, the aim of this research was to investigate the short-term effect of saffron extract consumption on the serum levels of interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-α) and cortisol in young men after an intense exercise session.

The present research was semi-experimental. Twenty-four male students were randomly divided into two groups (saffron and placebo). Blood sampling was done before and immediately after 30 minutes of vigorous activity with an intensity of 85% of the maximum heart rate stored on the treadmill. After completing the pre-test, the saffron group consumed 400 mg of saffron extract for 15 days, and the placebo group consumed the same amount of starch flour. Then, like the pre-test, two blood samples were taken again before and immediately after intense activity. IL-6 and TNF-α serum levels were determined by ELISA method and cortisol by radioimmunoassay method. Extraction of the results was done using covariance analysis test at a significance level of p≤0.05.

After the implementation of the intense aerobic protocol, the concentration of cortisol (p₌0.01) and TNF-α (p₌0.02) in the saffron supplement group was significantly lower than the placebo group; However, there was no statistically significant difference in serum IL-6 levels between the two groups (p<0.49).

short-term consumption of saffron before intense activities can moderate the release of some inflammatory indicators and cortisol, and is desirable for athletes involved in intense activities.

Platelets play an important role in formation of a stable hemostatic white thrombus and a major role in the blood-clotting process. It has also been suggested that platelets are important in many of the reactions in the intrinsic pathway of coagulation. Recent evidence emphasizes the pivotal role of abnormal platelet function in acute coronary artery diseases, myocardial infarction, unstable angina and stroke. Acute exercise might be harmful for inactive individuals and particularly patients, if the exercise intensity is high. One of the main mechanisms causing this, is exercise-induced thrombosis. On the other hand, regular exercise or exercise training results in health benefits and improvements in lifestyle not only in normal healthy subjects but also in patients. However, the study of exercise training effects on blood platelets are highly contentious because of the fact that the analytical methods employed to study platelets are different and accompanied by numerous methodological problems. Few studies are available on the effect of training on blood platelets and the exact effects of exercise training on platelet activation and function is not as yet known. This lack of information makes further studies particularly important, in order to clarify whether there are favorable effects of exercise training on platelet aggregation and function in health and disease. This article presents a summary of the previous research findings that investigated the interaction between acute and chronic exercise and platelets in health and disease, as well as providing directions for future studies.