hamed ghiyami taklimi

Interval exercises with high intensity and consumption of plant extracts probably have beneficial effects on inflammatory indicators. The aim of this study was to investigate the effect of eight weeks of High-Intensity Interval Training (HIIT) and the consumption of Loquat leaf extract on the serum levels of TNF-α and interleukin-18 in obese men with non-alcoholic fatty liver disease.

In this semi-experimental study, forty men with non-alcoholic fatty liver disease with body mass index (33.92 ± 1.82) with informed written consent were randomly selected and assigned into four groups: control, training, Extract, Extract + training (Each group of 10 people). Exercises were performed for eight weeks and three sessions per week for 60 minutes with intensity between 80-95% of the reserve heart rate. Two capsules of 250 mg of Loquat leaf extract were also prescribed daily. Paired t-test and analysis of covariance were used.

A significant decrease in the levels of TNF-α (15.3%) and interleukin 18 (14.9%) was observed in the training + extract group (P<0.05). A significant difference was observed in the levels of TNF-α (P=0.001) and interlock 18 (P=0.001) between the groups, and these changes were more significant in the Extract + training group than in the training and extract groups.

It is concluded that performing intense intermittent training along with Loquat leaf extract will be able to improve TNF-α and interleukin 18 indices related to fatty liver in people with non-alcoholic fatty liver disease. However, confirmation of this hypothesis requires more research.

Obesity seems to lead to inflammation and impaired insulin function. Exercise can play a quasi-insulin role by stimulating visfatin. The aim of this study was to investigate the effect of 10 weeks resistance training on visfatin and insulin resistance in obese adolescents. In this semi-experimental study, 16 adolescent obese boys with Mean age (17.93±0.61) years a body mass index of 30 to 35 kg/m2 were purposefully selected and randomly and equally divided into experimental and control groups. The training group performed a resistance training program with an intensity of 40 to % 851RM, three sessions per week, for ten weeks. Before the start of the training program and 48 hours after the last training session, the values of visfatin, glycemic index and body composition were measured. Data analysis was performed using dependent t-test and covariance analysis at a significance level of P<0.05. Data analysis showed that after 10 weeks of resistance training, serum levels of plasma visfatin (P=0.001, F=375.81), insulin resistance (P=0.001, F =1967.87), insulin (P= 0.001, F= 325.62, glucose (P= 0.001, F=66.99) and fat percentage (P= 0.03, F= 5.57) in the experimental group in terms of control. You have less although weight (P=0.15, F=2.26) and body mass index (P=0.20, F=1.81) were associated with a decrease in intergroup comparison, it was not significant. Resistance training appears to be effective in improving glycemic index and body composition in obese individuals by acting on visfatin plasma and enhancing its insulin-like function.

Changes in anabolic and catabolic hormones are associated with increasing age in old age. This study aimed to evaluate the effect of 12 weeks of TRX training on testosterone and cortisol serum levels in elderly men.

In this quasi-experimental study, 16 elderly men with age range of (62.06±1.53) years were selected as a sample and randomly selected in two training groups: TRX and control. There were 8 participants in each group. The experimental group trained in a TRX training program for 12 weeks and 3 sessions per week for 60 minutes. Blood samples were taken 48 hours before and after the intervention to measure serum testosterone and cortisol. Statistical analysis was performed on the surface P<0.05.

The results of paired t-test showed that there was a significant difference between pre-test and post-test in testosterone levels (P=0.01, t=-0.49) in TRX group. Also, the results of analysis of covariance showed that the amount of testosterone in the TRX group increased compared to the control group, but the changes were not significant (P=0.06, F=4.07). Also, no significant change in blood cortisol levels was observed between the two groups (P= 0.20, F=1.77).

It seems that resistance training with body weight can be effective in the increasing the anabolic hormone testosterone in the elderly and reduce the level of the catabolic hormone cortisol, also. Therefore, TRX training is recommended as a suitable training method to increase testosterone levels in the elderly.