Affiliations: [a] Department of Biological Sciences in Sport, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran
| [b] Platelet Research Laboratory, Kashan University of Medical Sciences, Kashan, Iran
Correspondence:
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Corresponding author: Sajad Ahmadizad, Department of Biological Sciences in Sport, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran. E-mail: [email protected].
Abstract: BACKGROUND:Diabetes mellitus is a common disorder with the risk of vascular injury. OBJECTIVE:The aim of this study was to compare the effects of low-intensity resistance exercise with blood flow restriction versus high-intensity resistance exercise on platelet CD markers and indices in patients with type 2 diabetes. METHODS:Fifteen female patients with type 2 diabetes (Mean±SD; age, 47.6±7.2 yrs) randomly completed two resistance exercise at an intensity corresponding to 20% and 80% of one-repetition maximum (1-RM), with and without blood flow restriction (REBFR and RE), respectively. We measured markers of platelet activation (P-selectin, GpIIb/IIIa, and CD42) and platelet indices before and immediately after exercise, and after 30 min recovery. RESULTS:Platelet count (PLT) and plateletcrit (PCT) increased in response to REBFR more than the RE (p < 0.05), though, no significant differences in PDW and MPV were observed (p < 0.05). Although P-selectin (CD62P), CD61, CD41, and CD42 were reduced following resistance exercise in both trials, these reductions were non-significant (p < 0.05). Besides, no significant between-group differences were found for platelet CD markers (p < 0.05). CONCLUSIONS:It is concluded that REBFR induces thrombocytosis, but responses of platelet CD markers in patients with type 2 diabetes are similar following low-intensity REBFR and high-intensity RE.
