Physical Education
Haniyeh Soltani; Behrouz Abdoli; Alireza Farsi; Abbas Haghparast
Volume 29, Issue 1 , May and June 2022, , Pages 77-87
Abstract
Background: Many heroin-dependent people have defects in cognitive functions. The aim of this study was to investigate the effect of resistance training on cognitive functions of heroin-dependent men.Materials and Methods: The research method is quasi-experimental and applied in terms of purpose, which ...
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Background: Many heroin-dependent people have defects in cognitive functions. The aim of this study was to investigate the effect of resistance training on cognitive functions of heroin-dependent men.Materials and Methods: The research method is quasi-experimental and applied in terms of purpose, which was done by pretest-posttest with the control group. Thirty heroin addicts from the Addiction Treatment Center in Tehran participated in study as a sample and were divided into two groups: experimental and control. Participants performed semantic strop and n-back working memory test in the pre-test. The participants of the experimental group performed resistance training sessions 3 times a week for 8 weeks in a circular manner consisting of three sets of 8-12 repetitions consisting of 6 movements with rest intervals of 1-2 minutes between sets and 3-5 minutes between movements. Finally, after the intervention, the post-test was performed. Analysis of covariance was used to analyze the data.Results: The results showed that there was a significant difference between the experimental and control groups in the variables of neutral semantic strop (f(1.27)=5/53 p=0.026), positive (f(1.27)=14/75 p=0.001), negative (f(1.27)=6/18 p=0.019) and working memory (f(1.27)=5/29 p=0.029). Due to the difference in means, in working memory, the performance of the experimental group was higher and also the semantic strope reaction time (neutral, positive and negative) was lower in the experimental group.Conclusion: In a general conclusion, it can be stated that a course of resistance training has a positive effect on cognitive functions (semantic strope and working memory) in heroin-dependent men.
Physical Education
morteza hajinia; AmirHossein Haghighi; Roya Asgari
Volume 28, Issue 3 , May and June 2021, , Pages 457-465
Abstract
Introduction: Obesity is a metabolic disorder that can be controlled and prevented by increasing energy expenditure and stimulating factors related to the browning of white adipose tissue. The aim of this study was to investigate the effect of high-intensity resistance training on Irisin and Fibroblast ...
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Introduction: Obesity is a metabolic disorder that can be controlled and prevented by increasing energy expenditure and stimulating factors related to the browning of white adipose tissue. The aim of this study was to investigate the effect of high-intensity resistance training on Irisin and Fibroblast growth factor 21 (FGF21) levels in overweight men.
Materials and Methods: In this semi-experimental study, 20 overweight men (mean 36.56± 3.33 years and body mass index 29.41± 3.02 kg/m2) were randomly selected. They were assigned in two groups of high-intensity resistance training and control. The program of the Resistance Group was conducted in a circular shape with an intensity of 85-80% of a maximum repetition, three sessions per week for eight weeks. 24 hours before and 48 hours after the training period, serum Irisin levels and FGF21 subjects were measured in the fasting state. Data analysis was performed by correlated t-test and ANCOVA at the significance level of P<0.01.
Results: Irisin and FGF21 Serum levels in the high-intensity resistance training group showed a significant increase compared to the control group (P<0.01). Bodyweight, BMI, and body fat percentage in the high-intensity resistance training group showed a significant decrease compared to the control group, while a significant increase was observed in the control group (P<0.01).
Conclusion: It seems that high-intensity resistance training can be emphasized as an effective step in convert white adipose tissue to brown and improving the body composition of overweight and obese people.
Physical Education
behnam masoudian; Akbar Azamian Jazi; mohammad faramarzi; ardeshir talebi
Volume 27, Issue 4 , November and December 2020, , Pages 586-591
Abstract
Introduction: Exercise trainings have beneficial effects on myocardium by changing the concentration of growth factors and their receptors and reduces the risk of heart failure. The aim of this study was to determine the effect of an Eight-week resistance training on ActRIIβin the myocardial left ...
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Introduction: Exercise trainings have beneficial effects on myocardium by changing the concentration of growth factors and their receptors and reduces the risk of heart failure. The aim of this study was to determine the effect of an Eight-week resistance training on ActRIIβin the myocardial left ventricular and plasma levels of GDF11, GDF8 in old male rats.
Materials and Methods: After the familiarization period, fourteen old male rats with age range 24 to 27 months were randomly divided into control (n= Seven) and training (n= Seven) groups. Resistance training was included eight weeks and five sessions per week climbing from a 1-meter ladder. GDF11 and GDF8 were measured by ELISA method and ActRIIβin the myocardial left ventricular was measurement by IHC method. Independent t-test was applied for statistical analysis of the data (p≤0.05).
Results: Comparisons between groups showed a significant difference between the training and control groups in GDF11 (p≤0.001), GDF8/GDF11 (p≤0.001), GDF8 (p≤0.027) and heart weight (p≤0.031). Between groups comparisons not showed a significant difference between the training and control groups in myocardium ActRIIβ (p>0.05).
Conclusion: It seems that resistance training is effective in Seniors cardiac physiological hypertrophy with beneficial effects on growth factors. Therefore, these trainings can be used to reduce the incidence of heart failure; however, more studies are needed in this regard.
Physical Education
Mohammad Hoseinzadeh; Amir Rashidlamir; farida sadeghi fazel; Rambod Khajei
Volume 27, Issue 3 , September and October 2020, , Pages 340-346
Abstract
Background and purpose:Irisin, which is released in response to physical activity, has recently been reported as the therapeutic target in metabolic disorders. The present study attempts to discover the effect of eight weeks’ resistance or endurance training on the irisin level in rats’ gastrocnemius ...
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Background and purpose:Irisin, which is released in response to physical activity, has recently been reported as the therapeutic target in metabolic disorders. The present study attempts to discover the effect of eight weeks’ resistance or endurance training on the irisin level in rats’ gastrocnemius and liver.Materials and methods:To this purpose,15 male rats were randomly assigned to three groups of 5: the resistance group, the endurance group, and the control group. For 8 weeks, the resistance group did the activities on the treadmill and the endurance group on a one-meter-long ladder with 85 steep, while the control group did not receive any training. 72 hours after their last training session, the subjects were anaesthetized and their liver and gastrocnemius were removed. A Shapiro-Wilk test was run to determine the normal distribution of data, and a one-way ANOVA and a Tukey test were applied to analyze the data(P ≥ 0.05).Results: The normal distribution having been approved via the Shapiro-Wilk test, the one-way ANOVA showed a significant difference in the irisin levels between the groups’ livers and gastrocnemii (P =0.001 and P -0.016, respectively). The Tukey test revealed a significant rise in the liver tissue of the resistance group and endurance group in comparison to the control group (P =0.001 and P =0.742, respectively).Conclusion:According to this study, both resistance and endurance training can help significantly increase the irisin level of both the liver and the gastrocnemius, indicating how physical activity can help in the prevention and treatment of metabolic illnesses.
Physical Education
Mohammad Hoseinzadeh; Amir Rashidlamir; Seyed Mahmud Hejazi
Volume 25, Issue 5 , November and December 2018, , Pages 629-637
Abstract
Background and purpose: Fibronectin transmembrane type III domain-containing protein 5 (FNDC5) is a characteristic factor in distinguishing skeletal muscle cells. Since the productive effects of regular exercise are conveyed through the skeletal muscle, this study aims to compare the effects of progressive ...
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Background and purpose: Fibronectin transmembrane type III domain-containing protein 5 (FNDC5) is a characteristic factor in distinguishing skeletal muscle cells. Since the productive effects of regular exercise are conveyed through the skeletal muscle, this study aims to compare the effects of progressive endurance and resistance training on FNDC5 gene expression in male rats’ gastrocnemius muscles.Materials and Methods: 15 male rats were randomly assigned to three equal groups of: control, endurance training and resistance training. The endurance group performed 8 weeks of training on the treadmill. The resistance group did their exercises for eight weeks on a three-session-per-week basis on a one-meter-high ladder with 85○ slope. All subjects were anesthetized 72 hours after the experiment finished and the gastrocnemius removed. The level of FNDC5 expression was measured through real-time PCR method and one-way ANOVA applied to analyze the data. Level of significance was set to P≥0.05.Results: One-way ANOVA showed a significant difference in FNDC5 expression among the groups (P=0.001, F=31.791). A subsequent Tukey test application showed FNDC5 gene expression of the gastrocnemius muscle was significantly higher in the resistance and endurance training groups than in the control group (P
Physical Education
Leili Zeiaadini Dashtkhaki; Amir Rashidlamir; Said Naghibi
Volume 25, Issue 4 , September and October 2018, , Pages 473-485
Abstract
Cardiac rehabilitation program aimed at reducing secondary risk factors and improving function in patients undergoing coronary artery bypass grafting run which finally may delay or reduce mortality patients. A key component of this program is exercise. The aim of this study was to evaluate the effect ...
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Cardiac rehabilitation program aimed at reducing secondary risk factors and improving function in patients undergoing coronary artery bypass grafting run which finally may delay or reduce mortality patients. A key component of this program is exercise. The aim of this study was to evaluate the effect of aquatic and dryland training on ABCG8 gene expression in middle-aged women’s peripheral blood mononuclear cells after coronary artery bypass grafting. 30 middle-aged women with cardiovascular disease were divided into three groups including control, aquatic and dryland resistance training. The program lasted for eight weeks of resistance training (3 sessions per week/ 60 minutes per session) and started with 60% of 1RM. Fasting blood samples were taken from all participants 48 hours both prior to the beginning of the training program and after the last training session. ABCG8 relative gene expression was detected by Real-time PCR method. Repeated measures and paired t-test with a significance level of p≤ 0.05 were used to determine differences between and within groups. Repeated measures test showed a significant increase in the relative ABCG8 gene expression in both the aquatic and dryland training groups (P= 0.001). Moreover, paired-samples t-test showed a significant difference in aquatic and dryland training groups regarding ABCG8 gene expression (P= 0.001; P= 0.001). It can be concluded that both training programs on land and water training, increase ABCG8 gene expression in middle-aged women after coronary artery bypass and a possible reverse cholesterol transport process can be improved.
Physical Education
Asra Askari; Amir Rashidlamir; Nahid Bijeh; Majid momeni-moghaddam
Volume 25, Issue 3 , July and August 2018, , Pages 451-460
Abstract
Background:Neurotrophin-3 is among the biomarkers studied in MS.Regarding the fact that Exercise training has been proposed as an effective non-drug way of treating Multiple Sclerosis(MS),the present study aims at investigatingthe effect of eight weeks’ aquatic exercise and resistance training ...
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Background:Neurotrophin-3 is among the biomarkers studied in MS.Regarding the fact that Exercise training has been proposed as an effective non-drug way of treating Multiple Sclerosis(MS),the present study aims at investigatingthe effect of eight weeks’ aquatic exercise and resistance training programs on the plasmatic levels and gene expression of neurotrophin-3in MS patients.Materials and methods:To the aims of the present study,30women with MS were randomly selected and assigned to three groups:the control group,resistance training group,and aquatic exercise group. Resistance training and aquatic exercise programs were used for 8weeks.After separating plasma and PBMNcells,plasmatic levels and the expression of neurotrophin-3gene were measured via ELISA and real-timePCR,respectively.Inorder to compare the means,plasmatic levels and the gene expression of neurotrophin-3of the three groups were Analyzed by the ANCOVAtest at the significance level of p≤0.05through SPSS18. Results:The results showed a significant increase in plasma levels neurotrophin-3of the three groups (p=0.001).The Scheffe post hoc test was significant in two by two comparisons of the aquatic group and resistance training group with the control group (p=0.001,p=0.001,respectively).However,the difference between the aquatic and resistance groups was not significant(p=0.329).Moreover,there was a significant increase in the gene expression of neurotrophin-3of the three groups(p=0.001).Based on the Scheffe test,the mean differences between the aquatic and resistance groups,and the control group were(p=0.053,p=0.001,respectively).However,non-significant differences in the gene expression of neurotrophin-3were shown between the aquatic group and the resistance group(p=0.08).Conclusion:The findings of the present study indicated that both the resistance training and the aquatic exercise can increase plasmatic levels and the gene expression of neurotrophin-3in MS patients.
Mahmood Nikseresht
Volume 25, Issue 2 , May and June 2018, , Pages 205-215
Abstract
Background: Regular exercise training has been postulated as an important strategy to reduce inflammatory markers, but it is still not clear what type of training is most appropriate. The purpose of this study was to compare the effects of nonlinear resistance training (NRT) and aerobic interval training ...
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Background: Regular exercise training has been postulated as an important strategy to reduce inflammatory markers, but it is still not clear what type of training is most appropriate. The purpose of this study was to compare the effects of nonlinear resistance training (NRT) and aerobic interval training (AIT) on interleukin-18 (IL-18) and C-reactive protein (CRP) in obese young men. An additional aim was to compare the inflammatory markers between the obese and non-obese men to determine the obesity effect. Materials and Methods: Thirty-eight obese and young men (age=31.4±5.2 year, body fat%=27.3±1.5) were randomly assigned to NRT (n=14), AIT (n=12) and control (CON, n=12) groups. An age-matched control group of non-obese men were also recruited for baseline comparison. Independent t-test and 2-factor repeated measures analysis of variance (ANOVA) were used for analyzing data.Results: No significant differences were noted at baseline between obese and non-obese men for IL-18 (P=0.17), CRP (P=0.77) and VO2peak (P=0.24). After training, VO2peak increased in NRT (P=0.03) and AIT (P=0.001) compared to the CON, but in AIT more than in NRT (P=0.02). Compared to the CON, both of training were equally effective at reducing fat mass (P=0.001). However, there were no significantly changes in IL-18 (P = 0.26) and CRP (P=0.15) after training. Conclusion: Lack of significant differences for IL-18 and CRP between obese and non-obese men might be due to the similar status in age and aerobic fitness. It seems that 2 exercise programs could not make a significant reduction in the concentrations of inflammatory markers.
Ali Heidarianpour; Maryam Keshvari
Volume 23, Issue 6 , January and February 2017, , Pages 916-925
Abstract
Background: Several studies have suggested the role of inflammatory factors in the development and progression of complications of diabetes. Among the inflammatory biomarkers CRP, has the most rapid reaction and subside the normal level following a successful treatment. Sectional and longitudinal studies ...
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Background: Several studies have suggested the role of inflammatory factors in the development and progression of complications of diabetes. Among the inflammatory biomarkers CRP, has the most rapid reaction and subside the normal level following a successful treatment. Sectional and longitudinal studies have confirmed the anti-inflammatory effects of exercise and its effects on various inflammatory and pre inflammatory cytokine mentioned. The purpose of this study was to compare three different ways of training on CRP levels in type 2 diabetic patients after a ten -week training is designed.
Methods: 52 patients with type 2 diabetes (65-40 years) were randomly divided into four groups: aerobic training, resistance, combined (aerobic and resistance) and control groups and each group consisted of 13 subjects. Exercise 3 times a week for 60 minutes each session lasted for 10 weeks.The high-sensitivity CRP (hs-CRP) at baseline and at the end of the study were measured by ELISA. The data analysis was done by SPSS20 and p<0.05 considered as significance level.
Results: aerobic and combined exercise significantly subsides hs–CRP level in type II diabetes patients, this decrease was more significant pronounced in combined exercise and resistance exercise has not significantly effect on hs–CRP level
Conclusion: According to the findings aerobic exercise training is particularly suitable compound to prevent inflammatory biomarkers such as CRP elevation in patients with type 2 diabetes. Therefore more studies in future maybe useful to prevent diabetic complications.
Hoda Khorram; Aloasghar Ravasi; Mehdi Hedayati; Ali Samadi; abbasali Gaeini
Volume 20, Issue 3 , September and October 2013, , Pages 389-399
Abstract
Background: Reactive oxygen species have an important role in the development of diabetes and its complications. The purpose of this study was to investigate the effect of eight weeks of resistance training on oxidative stress in heart of diabetic rats.
Material and methods: In an experimental study, ...
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Background: Reactive oxygen species have an important role in the development of diabetes and its complications. The purpose of this study was to investigate the effect of eight weeks of resistance training on oxidative stress in heart of diabetic rats.
Material and methods: In an experimental study, 24 Wistar rats divided into two groups, 1. Resistance training (n = 12), and 2. Control group (n = 12). Induction of diabetes was done by a single intraperitoneal injection of streptozotocin (STZ) at a dose of 50 mg/kg dissolved in phosphate buffer (pH, 4.5). The training protocol consisted of 1 set of 10 climbing with the weight attached to the base of the tail, three times per week and for 8 weeks. Forty eight hours after last training session, animals were anesthetized blood was taken directly from the heart and then the heart removed and left ventricles were isolated and used for biochemical assessments. All the statistical analysis was done by SPSS software version 16. Level of significance was set at α
Mohammad Reza Hamedinia; Teyyebh Amiri Parsa; Marziyeh Saadat Azarnive; Seyyed Ali Reza Hosseini Kakhk
Volume 18, Issue 3 , September and October 2011, , Pages 188-197
Abstract
Background and Purpose: Obesity is associated with various metabolic and inflammatory impairments، the effects of which have not been sufficiently studied. Therefore، the purpose of this study was to examine the influence of an 8-week strength training and aerobic training program and a 10-day detraining ...
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Background and Purpose: Obesity is associated with various metabolic and inflammatory impairments، the effects of which have not been sufficiently studied. Therefore، the purpose of this study was to examine the influence of an 8-week strength training and aerobic training program and a 10-day detraining on lipid profile and CRP in obese girls. Methods and Materials: In this experimental study، thirty-six obese female university students were voluntarily recruited and randomly assigned into three groups: control (n=11)، aerobic training or AT (n=12) and strength training or ST (n=13). ST and AT groups trained for 8 weeks، 4 times/week، 60 min/session، with 60 to 70% of 1 repetition maximum for ST، and 65 to 75% of HRmax for AT. Blood samples were taken at baseline، 24 hours after the last exercise session and after 10 days of detraining on fasting state. Data were analyzed in SPSS 16 using repeated measure analysis of variance (RM-ANOVA). The alpha level was established at P0.05). Also، no significant differences were found between the three groups (P>0.05). TC also decreased in AT and ST groups (9% and 19%، respectively); however، the change was not significant (P>0.05). After training no significant changes in HDL، HDL2، HDL3، LDL، and CRP were observed (P>0.05). Ten days of detraining also did not result in any significant alterations in the lipid profile or CRP (P>0.05). Conclusion: Eight weeks of aerobic and strength training have no significant effect on the lipid profile and CRP in obese girls.
MR HAMEDI NIA; AH HAGHIGHI; P JAMILI
Volume 13, Issue 4 , January and February 2007, , Pages 204-210
Abstract
Background and purpose: C-reactive protein is a sensitive, nonspecific marker of inflammation and its relationship with coronary vascular disease is already established. The present research was conducted to study the effect of resistance training on the rate of C-reactive protein in obese men.
Methods ...
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Background and purpose: C-reactive protein is a sensitive, nonspecific marker of inflammation and its relationship with coronary vascular disease is already established. The present research was conducted to study the effect of resistance training on the rate of C-reactive protein in obese men.
Methods and Materials: The present study was quasi-experimental and 24 male subjects (16 obese, 8 lean) with age range of 35 to 48 years voluntarily participated in the study. Obese men were randomly assigned into two groups: resistance training and control group. The third group included the lean men subjects. Fasting blood samples were taken from all subjects. The experimental subjects received resistance training for 13 weeks, 3 sessions per week. The resistance training was done in circuit fashion in 11 stations with a 50 to 60% intensity of one maximum repetition (IRM).
Results: Resistance training significantly decreased the serum CRP levels of the obese men (from 1.65±0.6 to 0.53±0.73). In addition, serum CRP concentrations in obese men at baseline state were significantly higher than those in lean men (1.56±0.58 versus 0.26±0.21). In all subjects there was a significant and positive correlation between serum CRP levels and obesity markers (r=0.75) and different components of the metabolic syndrome.
Conclusion: Resistance training due to antinflammatory effects is likely to reduce the risk of future cardiovascular events in obese men.