The effects of acute interval cycling and blood flow restriction on hematologic factors of beginner cyclists

Authors : Hadi BASHAFAAT, Mohammad Ismail AFZALPOUR, Ali Asghar FALLAHI, Saeed NAZIFI, Said ILBEIGI

Pages : 70-76

View : 12 | Download : 5

Publication Date : 2017-04-30

Article Type : Other Papers

Abstract :Blood compositions change as a result of physical activity and an exercise associated with Blood Flow Restriction insert ignore into journalissuearticles values(BFR); is a new exercise method. This study aims to compare the acute effect of an interval exercise with blood flow restriction on beginner cyclists’ hematologic factors.  Twenty students of Shiraz Education Cycling Team with an age average of 16.43 ± 1.36 years, weight of 60.07 ± 11.74 kg and height of 175.46 ± 6.14 cm participated voluntarily in this experimental study. The participants were divided randomly into two equal groups of interval cycling with BFR insert ignore into journalissuearticles values(n=10); and interval cycling without BFR insert ignore into journalissuearticles values(n=10);. Interval exercise consisted of 10 repetitions for one minute and one-minute rest between repetitions. BFR was applied by cuff with a width of 15 cm and pressure of 160 mmHg. Before and immediately after the exercise, 5 ml blood sample was taken from a brachial vein. The results were extracted using dependent and independent T-test statistical methods at the significance level of P <0.05 by SPSS 23. The results showed the increasing effect of acute interval cycling with BFR on White Blood Cells insert ignore into journalissuearticles values(WBC);, Red Blood Cells insert ignore into journalissuearticles values(RBC);, Hemoglobin insert ignore into journalissuearticles values(Hb);, Hematocrit insert ignore into journalissuearticles values(Hct); and Platelets insert ignore into journalissuearticles values(PLT); as well as the increasing effect of acute interval cycling without BFR on WBC and PLT. No significant difference was observed between the effects of the two exercise methods on hematologic factors insert ignore into journalissuearticles values(P<0.05);. Acute interval cycling with BFR increased five hematologic indexes; however, acute interval cycling without BFR increased two hematologic indexes. It seems that interval exercise with BFR makes wide hematologic changes among beginner cyclists.
Keywords : Blood cells, blood flow restriction, interval exercise