Showing 7 results for motamedi
Vahid Fekri Kourabbaslou, Pezhman Motamedi, Sadegh Amani Shalamzari,
Volume 16, Issue 15 (9-2018)
Abstract
Eotaxin, a pro-inflammatory Adipokine is secreted from adipose tissue, which its secretion increases in the obesity and cause neurodegeneration. BDNF is a neurological factor that interferes with cognitive function, fat and sugar metabolism, as well as the pathophysiology of obesity and metabolic syndrome in adulthood. The aim of this study was to investigate the Effect of Six Weeks of Interval Resistance Training on Eotaxin and Brain-Derived Neurotrophic Factor Serum Levels in Overweight young men. Twenty non-active students without regular exercise program from Kharazmi University were randomly selected and divided into two groups of training (n=10) and control (n=10). The training group performed Interval resistance Training for 6 weeks, 3 sessions per week and each session lasted 45 minutes. The training program included 7 moves with intensity of 30-40% of 1RM and velocity 2v for 10 seconds and rest intervals with intensity 30-40% 1RM and velocity v for 20 seconds. Blood samples were taken before and after 6 weeks of training to evaluate the serum Eotaxin and BDNF levels using the Sandwich ELISA. To analyze the data, the covariance test and Bonferron's post hoc test were used to compare the variables. The results of covariance analysis and Bonferroni test showed that 6 weeks of Interval resistance training caused a significant reduction in the weight (p=0.003), body mass index (p=0.004) Waist circumference (p=0.012) and fat percentage (p=0.001). Also, significant increase was observed in muscular endurance (p=0.001), serum BDNF levels in the training group compared to the control group (p=0.024), and serum Eotaxin levels in the training group decreased significantly (p=0.022). Correlation results showed a significant reverse relationship respectively between pre and post training Eotaxin and BDNF (p=0.015 r=-0.511, p=0.013 r=-0.586). Weight loss through six weeks of Interval Resistance training, which accompanied the loss of adipose tissue; resulted in a reduction in serum levels of Eotaxin and increased serum levels of BDNF.
Vahid Fekri Kourabbaslou, Pezhman Motamedi, Sadegh Amani Shalamzari,
Volume 16, Issue 15 (9-2018)
Abstract
Eotaxin, a pro-inflammatory Adipokine is secreted from adipose tissue, which its secretion increases in the obesity and cause neurodegeneration. BDNF is a neurological factor that interferes with cognitive function, fat and sugar metabolism, as well as the pathophysiology of obesity and metabolic syndrome in adulthood. The aim of this study was to investigate the Effect of Six Weeks of Interval Resistance Training on Eotaxin and Brain-Derived Neurotrophic Factor Serum Levels in Overweight young men. Twenty non-active students without regular exercise program from Kharazmi University were randomly selected and divided into two groups of training (n=10) and control (n=10). The training group performed Interval resistance Training for 6 weeks, 3 sessions per week and each session lasted 45 minutes. The training program included 7 moves with intensity of 30-40% of 1RM and velocity 2v for 10 seconds and rest intervals with intensity 30-40% 1RM and velocity v for 20 seconds. Blood samples were taken before and after 6 weeks of training to evaluate the serum Eotaxin and BDNF levels using the Sandwich ELISA. To analyze the data, the covariance test and Bonferron's post hoc test were used to compare the variables. The results of covariance analysis and Bonferroni test showed that 6 weeks of Interval resistance training caused a significant reduction in the weight (p=0.003), body mass index (p=0.004) Waist circumference (p=0.012) and fat percentage (p=0.001). Also, significant increase was observed in muscular endurance (p=0.001), serum BDNF levels in the training group compared to the control group (p=0.024), and serum Eotaxin levels in the training group decreased significantly (p=0.022). Correlation results showed a significant reverse relationship respectively between pre and post training Eotaxin and BDNF (p=0.015 r=-0.511, p=0.013 r=-0.586). Weight loss through six weeks of Interval Resistance training, which accompanied the loss of adipose tissue; resulted in a reduction in serum levels of Eotaxin and increased serum levels of BDNF.
Mehdi Soltani Ichi, Pezhman Motamedi, Hamid Rajabi,
Volume 17, Issue 17 (4-2019)
Abstract
The purpose of this research was to determine the acute effects of plyometric training with changing of height landing on the electromyographic activity during preparatory phase land-jump in male students. The population of this research were 10 physical education male students of Kharazmi University, which selected as sample. (21/10±1/286yrs, 173±6/467 height, 68/2±7/42 weight). In four different days subjects Performed as single leg one of four protocols plyometric training and land - jump from a height of 40 and 60 cm. EMG activity of the quadriceps and hamstring muscle group 150 milliseconds before foot contact with the ground was recorded. Analysis of variance with repeated measures and Bonferroni post hoc test was used. The results of this study showed that muscle activity after changing of height landing in preparatory phase (from 40 to 60 cm) has increased significantly (P=0/002, P=0/001, P=0/001) respectively. Activity of muscles (rectus femoris, vastus lateralis, biceps femoris) during landing after performing plyometric and changing of height landing in preparatory phase has increased significantly (P=0/039, P=0/001) (P=0/006, P=0/000) (P=0/001, P=0/014) respectively. Jump height has increased significantly (P=0/007, P=0/002) respectively. The results showed that acute perform plyometric training with changing of height landing result in significant changes in the electrical activity of muscles and also the height of the jump in the preparatory phase.
H Rajabi, P Motamedi, D Zabihi,
Volume 18, Issue 19 (7-2020)
Abstract
The purpos of this study was to determine the effect of twelve session of high intensity cycle training with blood flow restriction on aerobic and anaerobic performance of active student men. To this purpose, 24 valentear active students men from physical eduction faculty of kharazmi university aged 19-23 years old, students (mean ± SD weight: 67.89±6 kg, height: 173.92±5.41cm, and BMI: 22.7±6.84kg/m2) divided into three groups of blood flow restriction (BFR) (n=8), none blood flow restriction(NBFR) (n=8) and control group (n=8). The exercise consisted of cycling at 80% Wmax for ten 1-min bouts, with a 2-min rest between bouts with 50% Wmax (total time, 30 min). Before and after implementation of the training protocol, Astrand Test to check the aerobic performance and Wingate test to check anaerobic performance was conducted. To data analysis, the independent t-test, analysis of variance test and post hoc test (LSD) was used. Results indicated that two weeks of high intensity cycling with and without blood flow restriction does have a significant impact on VO2max(p=0.000) and Wmax(p=0.000) and time to exhaustion (p=0.001). The results indicate a further increase in aerobic performance components, in exercise with blood flow restriction training group compared to the unrestricted blood flow training group. The results olso indicated that tow weeks of cycle training with occlusion does not have a significant impact on peak anaerobic power(p=0.064), average anaerobic power(p=0.058) and minimum anaerobic power(p=0.826). In general, the results showed a partial restriction of blood during cycling interval training have affect on aerobic adaptations, but does not affect on anaerobic adaptations.
Mr Hamid Mahmodi, Dr Hamid Rajabi, Mr Mohsen Bapiran, Dr Pezhman Motamedi,
Volume 19, Issue 21 (9-2021)
Abstract
The purpose of this study was to compare the effect of plyometric training pre and post maturation period with soccer training on electromyographical index and soccer players performance. 30 students of soccer player's pre maturation period (weight 32.38±6.59 kg, age 10.35±0.59 years, and height 141±0.06cm) and post maturation period (weight 43.79±10.96 kg, age 15.43±0.72 years, and height 156.84±0.09 cm) were selected. Subjects in the experimental group were 15 students before and after maturity period. To evaluate the age of the indices such as height, age, dental and bone age (radiographic method) was used. Then, for homogeneous groups of index of biological age radiography was used by radiologists. Before and after 4 weeks of training,, functional tests of two 20 meter speed, agility, vertical jump and also Amplitude for vastus lateralis muscle Were taken. The result by using Paired t-test showed that in pre maturation group in the vertical jump, agility and 20 meters there was a significant difference (P=0.002,P=0.006,P=0.001) and the other variables there was no significant difference. In variations between the groups, independent t-test showed that only significant differences was found in the test 20 meter speed (P = 0.007) and in the other variables not significantly different. The results showed that plyometric training in the Pre maturation group compared to post maturation group were more effect and these results can help in the design training for premature age groups
Mohammad Azimnezhad, Pezhman Motamedi, Mohammadreza Dehkhoda, Neda Khaledi,
Volume 20, Issue 23 (9-2022)
Abstract
Apoptosis is a programmed cell death and it’s associated with type 2 diabetes. The aim of present study was to investigate the effect of endurance training on caspase-3, Bcl-2 and Bax gene expression of cardiac tissue in type 2 diabetic male wistar rats.In an experimental trial, 36 male wistar rats were randomly divided into three groups, Diabetic Endurance Training (n=12), Diabetic Control (n=12) and Healthy Control (n=12). Type 2 diabetes was induced by intraperitoneal injection of STZ. The endurance training included 10 weeks, 5 sessions per week running at speed of 27 m/min for 20-30min in 1st week and reached to 27 m/min for 60 min/day in 10th weeks. The animals were sacrificed 24 h after last training session and the samples were taken from cardiac tissue. The gene expression of caspase-3, Bcl-2 and Bax were examined by Real time-PCR. The one-way ANOVA was used to analysis the data. The significant level was set at p<0.05. The gene expression of caspase-3and Bax of diabetic control group showed significant increase comparing with healthy control group (p =0.001) while gene expression of Bcl-2 significantly decreased (p =0.001). The endurance training induced significant reduction in the gene expression of caspase-3and Bax (p =0.001) and significant increase in the Bcl-2 compared to diabetic control group (p =0.001). It appears that gene expression of caspase-3, Bcl-2 and Bax of diabetic cardiac tissue are affected by positive effect of endurance training and the endurance training induces improvement in apoptosis of diabetic cardiac tissue.
Vahid Fazeli, Pezhman Motamedi, Hamid Rajabi, Neda Khaledi,
Volume 21, Issue 26 (12-2023)
Abstract
Objective: The aim of the present study was to investigate the effect of combined exercise on aortic atherosclerosis and FGF23 in male rats with chronic renal failure. Methods: In this study, 20 male Wistar rats (mean weight 10 ± 250 g) were induced by NX5 / 6 method for chronic renal failure. After 2 weeks of recovery, they were randomly divided into two groups of control (n= 10) and combined training (n= 10) and performed a combined training protocol for 8 weeks. The combined training protocol consisted of two resistance training exercises on a ladder with 2 sets and 6 repetitions with percentages of body weight and aerobic exercise included 30 minutes of low-intensity treadmill activity. Results: The results showed that combined exercise reduced aortic atherosclerosis and decreased plaques, and FGF23 decreased significantly (p = 0.001). Parathoromon hormone also significantly decreased (p = 0.041) and calcium and phosphorus significantly decreased (p = 0.004 and p = 0.005, respectively). Conclusion: Overall, the results showed that combined training could decrease FGF23, parathoromon hormone, calcium and phosphor on aortic atherosclerosis and cardiovascular disease indices in chronic renal failure patients.
