F Saghi; E Hakak Dokht; M Moazzami
Abstract
Aim: Derived hormones from adipokines are include leptin, adiponectin, apelin and omentin. One of the roles of omentin is reducing insulin resistance.The purpose of this study was to compare the effects of aerobic training and resistance training on serum omentin, insulin resistance and lipid profilein ...
Read More
Aim: Derived hormones from adipokines are include leptin, adiponectin, apelin and omentin. One of the roles of omentin is reducing insulin resistance.The purpose of this study was to compare the effects of aerobic training and resistance training on serum omentin, insulin resistance and lipid profilein women. Method: Twenty four non-active healthy obese postmenopausal women volunteered to participate in this research. They were randomly assigned into two groups: aerobic training group (AT, n=12) resistance training group (RT, n=12). AT group carried out exercises at 55-75 percent of maximal heart rate reserve and RT group carried out training at 60-80 percent of 1RM. Dependent variables were measured in the two phases of the study, including pre-test and post-test. Blood samples were taken 24 hours before starting the first training session and also 48 hours after the last training session. Results: Results of paired samples t-test did not show any significant difference between changes in serum omentin and insulin resistance after aerobic training and resistance training. However, independent samples t-test show significant changes in all of them. Conclusion: The results of intergroup variations showed that there is a significant difference between the effect of eight weeks of resistance and endurance training on the amount of omentin, insulin resistance and lipid profiles. Keywords: Aerobic training, resistance training, omentin, insulin resistance.
Elaheh Talebi-Garakani; Rozita Fathi; Alireza Safarzade; Hamideh Moradi; Rihaneh Delbari
Volume 2, Issue 2 , July 2012, , Pages 91-100
Abstract
Abstract
Aim: The purpose of this study was to investigate the effect of 4 week resistance training on plasma omentin-1 levels in Streptozotocin induced diabetic rats.
Method: In this experimental study 24 male Wistar rats with mean weight of 288±22g (mean±SD) were randomly divided into 3 groups: ...
Read More
Abstract
Aim: The purpose of this study was to investigate the effect of 4 week resistance training on plasma omentin-1 levels in Streptozotocin induced diabetic rats.
Method: In this experimental study 24 male Wistar rats with mean weight of 288±22g (mean±SD) were randomly divided into 3 groups: non-diabetic control (n=8), diabetic control (n=8), and diabetic training (n=8). Diabetes was induced by a single intra-peritoneal injection of streptozotocin (STZ) at a dose of 55 mg/kg. The resistance training consisted of climbing a ladder carrying a load suspended from the tail (3 days/wk, for 4 wk). After 4-week body weight, plasma omentin-1, glucose, insulin, non-esterified fatty acids (NEFA) concentrations and lipid profiles were measured.
Results: After four weeks plasma omentin-1 levels in trained diabetic rats was higher when compared with diabetic control group, but it was not statistically significant. We did not find any significant difference in plasma glucose, insulin, NEFA and lipid profile levels between all groups. Body weights alteration in diabetic resistance trained rats were significantly lower compared with the diabetic control group.
Conclusion: The results of this study indicated that plasma levels of glucose, insulin, lipid profile and omentin-1 remained unchanged in diabetic rats due to 4 weeks resistance training. Short duration of training program appears to be an effective factor in the absence of significant changes in plasma omentin-1 levels.
Key words: Omentin-1, Resistance training, Diabetes
