Volume 28, Issue 6 (9-2021)                   RJMS 2021, 28(6): 0-0 | Back to browse issues page

Research code: 950280783 1- Gamas L, Paulo M, Seiça R. Irisin and myonectin regulation in the insulin-resistant mu
Ethics code: IR.IAU.SHK.REC.1397.026
Clinical trials code: IRCT20180822040849N6

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Jafari A, fazel H, Safarpour Dehkordi A. the effects of high intensity interval swimming training on serum myonectin and insulin resistance in postmenuposal overweight women. RJMS. 2021; 28 (6)
URL: http://rjms.iums.ac.ir/article-1-6138-en.html
islamic azad university- physical education department , jafari.akm@gmail.com
Abstract:   (596 Views)
Background and Aim:
Myonectin is one of the myokines that produce by skeletal muscle in response to exercise and is related with energy metabolism and metabolic status. The aim of this study was to evaluate the effects of high intensity interval swimming training on circulating myonectin and insulin resistance in postmenuposal overweight women.
 
Methods:
24 overweight women (55/73 ± 2/66 years,  26/72 ± 2/33 k/m2) were selected as the statistical sample and randomly assigned to two experimental (n=12) and control (n=12) groups. Experimental group practiced high intensity interval swimming trainings for 8 weeks, each week with 3 sessions, each session included warm up, 6-10 repetitions of 30 seconds of high intensity front crawl swimming and 10 minutes of cool-down. During the study period, the control group did not participate in any physical activity. 48 hours before training and 72 hours after the last training session, measurements of blood samples in the fasting state were performed to measure myonectin and insulin resistance by ELISA and HOMA formula. Also all data were analyzed using paired and in depended t-test and at the level of significance of p ≤ 0.05
 
Result:
The result showed that 8 weeks of high intensity interval swimming trainings caused a significant increase in myonectin, and a significant decrease in insulin and insulin resistance (0/05 ≥ P). there was not shown significant effect on glucose.
Conclusion: The results of this study suggest that high intensity interval swimming trainings can be used as an appropriate exercise to increase the amount of myonectin, as well as to improve insulin resistance in postmenopausal overweight women.
     
Type of Study: Research | Subject: Exercise Physiology

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