Response and adaptation to exercises
Zahra hosseinzadeh barkusaraie; Atefeh Akef; Hamid Arazi; Javad Mehrabani; farhad rahmani nia
Abstract
Introduction & objective: Resistance training is one of the types of training methods that has the potential to improve strength, endurance and muscle strength and reduce the rate of injury and increase athletic performance in young athletes.Method: the sample size was 30 young active women (age: ...
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Introduction & objective: Resistance training is one of the types of training methods that has the potential to improve strength, endurance and muscle strength and reduce the rate of injury and increase athletic performance in young athletes.Method: the sample size was 30 young active women (age: 26.61±4.55 years, height: 166.3±4.67 cm and weight: 60.08±6.05 kg). They performed an 8-week training course, three sessions per week/1 hour. Agonist and antagonist muscles were trained in the superset and compound set protocols. The movement sets for each muscle were 4 sets. The intensity of exercise was between 80-95% RM. Rest intervals between each set were also 2 minutes. Results: The compound and superset resistance trainings had a significant effect on salivary levels of cortisol, testosterone and cortisol/testosterone ratio in young female athletes (p<0.05). This significant difference was observed in the comparison between the compound-control and superset-control groups (p<0.05).Conclusion: It seems that both training methods, especially the superstar drills, were able to affect the limb environment, muscle strength and endurance, and the percentage of body fat in active young women.
Exercise Physiology
tahereh shadpour ali zadeh; Mohammad ali Azarbayjani; sirvan atashak; maghsoud peeri; saleh Rahmati ahmad abad
Abstract
AbstractAim:Menopause is associated with an imbalance in the expression of atherogenesis genes in the motor nerve terminal. However, the effect of resistance training on the gene expression affecting the inhibition of sarcopenia in the neurotransmitter plate is not well understood.The purpose of this ...
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AbstractAim:Menopause is associated with an imbalance in the expression of atherogenesis genes in the motor nerve terminal. However, the effect of resistance training on the gene expression affecting the inhibition of sarcopenia in the neurotransmitter plate is not well understood.The purpose of this study was to determine the effect of 8 weeks of increasing resistance training on the gene expression of AKT and mTORC-1 in the motor end plate of the quadriceps muscle of post-menopausal wistar rat.Methods:In this experimental study, 20 female Wistar rats (8 to 12 weeks old) with an average weight of 235 to 265 g, were randomly divided into 2 groups including Resistance Training (RT) and Control (C).Ovariectomy was performed after anesthesia with an intraperitoneal injection of Ketamine/Xylazine mixture with a bilateral incision in the lumbar region. incremental resistance training was performed for 8 weeks, 5 days a week on an 85 degree incline ladder. After 24 hours of the last training session and afterward recovery, animals were sacrificed and their quadriceps muscle was extracted. Real-time PCR was used to determine the expression of AKT and mTORC-1 genes.T-test was used at alpha level of 0.05 to compare the independent groups.Results:Genes expression AKT and Mtorc-1 were increased in the training group compared to the control(P=0.001 and P=0.003 respectively).The rats body weight did not show significant change in any of the groups(P=0.151).Conclusion:It seems that increasing resistance training reduces sarcopenia by increasing the genes expression of AKT and mTORC-1 in the motor end plate.
Exercise Metabolism
ABAZAR Teimoori; Alireza Ruzbahani; ZAhra Karimi mehr
Abstract
Aim:. The purpose of this study was to investigate The effect of eight weeks of increasing resistance training and BCAA nanoliposome supplementation on MiR-200a, HSP60, soleus muscle mitochondrial gene expression and serum IGF-1 in aged male rats.Methods: 32 old male were randomly divided into 4 groups: ...
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Aim:. The purpose of this study was to investigate The effect of eight weeks of increasing resistance training and BCAA nanoliposome supplementation on MiR-200a, HSP60, soleus muscle mitochondrial gene expression and serum IGF-1 in aged male rats.Methods: 32 old male were randomly divided into 4 groups: control, supplement (BCAA), combined (resistant training + BCAA) and exercise. Resistance training consisted of eight weeks of ladder training with moderate intensity (70% of MVCC) and five days a week. Rats in the supplement and combined groups received BCAA nanoliposome supplement at the rate of 600 mg per kilogram of body weight by gavage 5 days a week for 8 weeks. MiR200a and HSP60 were obtained using real-time PCR method and serum IGF-1 was obtained using ELISA method. Statistical analysis was performed with two-way, one-way analysis of variance and Tukey's post hoc test.Finding: significant decrease in MiR-200a and a increase in the expression of the HSP60 gene and serum IGF-1 of rats in the combination and exercise group compared to the supplement and control groups (p=0.001)., No significant difference was observed between the control and supplement groups (p=0.105).Conclusion: The direct effect of miR-200a and HSP60 on IGF-1 signal has an important effect on muscle growth and atrophy. The increase of IGF-1 as a result of strength training and BCAA supplementation causes hypertrophy and creates an anabolic environment and can affect age-related muscle growth factors and can bring benefits in this regard for the elderly.Keywords: Resistance training, BCAA, micro RNA, HSP60.
Exercise Physiology
Moinreh Kocheki; mohsen avandi; Abdosaleh Zar; Hamid Reza Sadeghipour
Abstract
Aim: Obesity is one of the most serious health problems associated with inflammation. Physical activity is one of the many factors that affect obesity and inflammation. The aim of the present study was to evaluate the effect of six weeks of resistance training and high intensity functional training cross-fit ...
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Aim: Obesity is one of the most serious health problems associated with inflammation. Physical activity is one of the many factors that affect obesity and inflammation. The aim of the present study was to evaluate the effect of six weeks of resistance training and high intensity functional training cross-fit on serum vaspin levels in obese women. Methods: The research method was quasi-experimental with pre-test-post-test design. Thirty six obese women of Semnan (age: 32.66 ± 3.91, weight: 86.97± 9.08 and BMI> 30) were selected as available and divided into three groups of high intensity functional resistance training (HIIF), Circular resistance training and control group (n = 12). The total training period consisted of 6 weeks and 3 sessions per week and each session was about 60 minutes. Serum levels of vaspin were avaluated befor and after the last training session. Results: Serum vaspin levels did not change significantly in the circular resistance training group (P=0.876) and Crossfit training group (P=0.837). But the body mass index was significantly decreased in the circular resistance training group (P=0.001) and the Crossfit training group (P=0.006). Conclusions: Circuit resistance training and Crossfit reduce the body mass of obese women, but they do not have a significant effect on the serum level of vaspin. It is suggested to use circular resistance exercises and HIFT with a longer duration for a better effect.
Exercise Physiology
mehrzad moghadasi; Nasrin Mortazavi Imami
Abstract
Aim: Exercise is recommended for the management of type 2 diabetes, but its effects on renal function in patients with type 2 diabetes are not well known. The aim of present study was to examine the effect of 8 weeks resistance training on glomerular filtration rate (eGFR) and CD5 antigen-like (CD5L) ...
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Aim: Exercise is recommended for the management of type 2 diabetes, but its effects on renal function in patients with type 2 diabetes are not well known. The aim of present study was to examine the effect of 8 weeks resistance training on glomerular filtration rate (eGFR) and CD5 antigen-like (CD5L) of male patients with type 2 diabetes.Methods: Twenty-two men (age: 51.5 ± 3.3 years and body mass index: 27.1 ± 3.2 kg/m2 mean ± SD) with type 2 diabetes participated as the subject. The subjects were randomly assigned to control or training group based on their eGFR. The subjects in the training group performed 3 sets with 8 to 15 repetitions of resistance training with 50-80% 1RM, 3 days a week for 8 weeks. The subjects in the control group were instructed to maintain their normal physical activity throughout the study. Fasting blood sugar, fasting insulin, insulin resistance, eGFR and CD5L were measured at baseline and 48h after the intervention.Results: The results indicated that fasting blood sugar, insulin resistance index and CD5L decrease in the training group compare to the control group (P<0.05); however, fasting insulin has no significant change after the intervention. Although eGFR has no significant change in the training group; but it was decreased significantly in the control group (P<0.05).Conclusion: In summary, it seems that resistance training utilized in this study improves blood glycemic and renal function in patients with type 2 diabetes.
Exercise Physiology
Soheila Yavarmasroor; Alireza Elmiyeh; Mohammad Reza Fadaei Chafi
Abstract
Introduction: In the present study, the effect of two types of resistance training - traditional and EMS on the levels of iris, glucose, insulin and insulin resistance in Inactive middle-aged womenwas compared.Material and Method: The study population consisted of 45 elderly women in Rasht with mean ...
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Introduction: In the present study, the effect of two types of resistance training - traditional and EMS on the levels of iris, glucose, insulin and insulin resistance in Inactive middle-aged womenwas compared.Material and Method: The study population consisted of 45 elderly women in Rasht with mean age (44.46 ± 3.42 years), weight (79 ± 7.89 kg), body mass index (34.4 ± 3.94 kg / height) and fat percentage (39.95 ± 4.50), which were randomly divided into three equal groups: 1) resistance-traditional (n = 15), 2) EMS (n = 15) and 3) control (n = 15) Were divided.After evaluating the anthropometric indices, the training groups performed their own training intervention for eight weeks.Results: The results of data analysis showed that the levels of irisin in the post-test compared to the pre-test showed a significant increase in both resistance-traditional and EMS training groups (P ≤ 0.05), which was higher in the EMS training group. (P≤ 05/0).Insulin and glucose levels and insulin resistance index also decreased significantly in post-test compared to pre-test in both training groups compared to control (P ≤ 0.05). While there was no significant difference between training groups (P ≥ 0.05).Conclusion: According to the results, it can be said that both traditional resistance training and EMS improved glucose metabolism and insulin resistance index in Inactive middle-aged womenby increasing irisin levels.
Sports and health nutrition
Mohammad Rahman Rahimi; Shahin Ketabi; Naeimeh Saeedi
Abstract
Aim: Adipokines are molecules secreted from adipose tissue that are related to insulin resistance, metabolic syndrome, diabetes and cardiovascular diseases. Therefore, the effect of 8 weeks of resistance training along with green tea extract (GTE) supplementation on the concentration of adipokines apelin ...
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Aim: Adipokines are molecules secreted from adipose tissue that are related to insulin resistance, metabolic syndrome, diabetes and cardiovascular diseases. Therefore, the effect of 8 weeks of resistance training along with green tea extract (GTE) supplementation on the concentration of adipokines apelin and chemerin in obese women was investigated.Method: Thirty untrained women with a body mass index (BMI) above 30 kg/m2 were selected from among obese women using a randomized, double-blind, placebo-controlled design method and were divided into three groups including training and green tea extract (GT), training and placebo consumption (PT) and green tea extract consumption (G). GT and G groups took 600 mg.kg-1 of GTE daily and PT group also took 600 mg of placebo for 8 weeks. The resistance training program consisted of 3 sessions per week for 8 weeks (60-70 minutes with an intensity of 65% to 80% of a one repetition maximum). Serum level of adipokines was measured using ELISA method.Results: The results of ANOVA with repeated measures indicate a significant decrease in serum levels of apelin and chemerin in GT and PT groups compared to G. Also, a significant decrease in the level of these adipokines was observed in the post-test compared to the pre-test in all three groups. Conclusion: 8 weeks of GTE intake and resistance training decreased inflammatory adipokines in obese women, and the combinatory effect of resistance training with GTE was more effective than the other two conditions.
Exercise Physiology
Hamidreza Nayeri khoob
Abstract
Galectin-3 is a member of the galectin family and galectin-3 used as a diagnostic or prognostic biomarker for certain types of heart disease, kidney disease and cancer. Intensive exercise increases the levels of this protein, but the effect of regular exercise to ameliorate galectin-3 responses to high-intensity ...
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Galectin-3 is a member of the galectin family and galectin-3 used as a diagnostic or prognostic biomarker for certain types of heart disease, kidney disease and cancer. Intensive exercise increases the levels of this protein, but the effect of regular exercise to ameliorate galectin-3 responses to high-intensity exercise is not well known. The present study was done to examine the effect of regular resistance training on galectin-3 responses to a bout of heavy resistance training. Eleven young men (age: 26.6±1.5 years old) volunteered to participate in this quasi study. One reparation maximum (1-RM) was measured and the subjects performed a heavy resistance exercise trial consisted of eight exercises (chest press, triceps extension, latissimus pull down, shoulder press, arm curls, leg extension, leg curls, and squat) of 8 repetitions with 3 sets at 80% of 1RM. Thereafter, all the subjects performed 3 sets of the same resistance training with 65-80% 1RM, 3 days a week for 8 weeks. 48h after the last session of training, a bout of heavy resistance exercise was done again. Blood samples were taken at baseline and immediately after the heavy resistance exercise trials. The results demonstrated that galectin-3 increases after the first bout of heavy resistance exercise (P<0.05), while galectin-3 concentration reduce after the 8 weeks of regular resistance training and it remain low after the second bout of heavy resistance exercise. Generally, we can conclude that regular resistance exercise is effective to ameliorate galectin-3 responses to a bout of heavy resistance training in young men.
Response and adaptation to exercises
Elnaz Sadeghpour Firozabadi; alireza barari
Abstract
Aim: Changes in the hypothalamo-pituitary axis are probably related to changes in sex hormones. Physical training is one of the effective factors in the changes of this axis. purpose of this study was the effect of six weeks of ResistanceTraining on free Testosterone serum levels, sex hormones binding ...
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Aim: Changes in the hypothalamo-pituitary axis are probably related to changes in sex hormones. Physical training is one of the effective factors in the changes of this axis. purpose of this study was the effect of six weeks of ResistanceTraining on free Testosterone serum levels, sex hormones binding globuline, Inhibin b and luteinizing and follicle-stimulating hormone in obese men students. Methods: For this purpose, 20 obese male students with aged range of 20 ± 2 years participated in this study and divided randomly into 2 groups 10 people of resistance training and control. Resistance training was performed for six weeks and three sessions per week in %60 to %70 repetition maximun. In order to analyze the biochemical variables, blood samples were taken at two stages, 48 hours before and after of training period. Inter group and between changes of information were performed by dependent and independent t-test. Results: The results of this study showed that resistance training led to a significant increase in free testosterone serum concentration and a significant increase in SHBG in obese men. But after six weeks of training, there were no significant changes in inhibin b, luteinizing hormone and follicular stimulation hormone. Conclusion: six weeks of resistance training with improved body composition, upper and lower body muscle strength and also aerobic power are associated with changes in sex hormones in obese men.
Hasan Naghizadeh; kamal Azizbeigi
Abstract
Aim:Obesity is known as an inflammatory systemic indicator of various diseases. The aim of the present study was to investigate the effect of 12 weeks of progressive resistance exercise on serum levels of enzymes aspartate aminotransferase, alkaline phosphatase and alanine aminotransferase in obese men. ...
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Aim:Obesity is known as an inflammatory systemic indicator of various diseases. The aim of the present study was to investigate the effect of 12 weeks of progressive resistance exercise on serum levels of enzymes aspartate aminotransferase, alkaline phosphatase and alanine aminotransferase in obese men. Method:Forty sedentary obese men (BMI=31.07 kg.m2) with age range of 30-45 years were purposefully selected and randomly divided into two groups of 20 participants: progressive resistance exercise and control. The exercise protocol for 12 weeks, was carried out three times a week (First week:15 repetitions -2 rounds -50% 1RM; Twelfth week:12 repetitions -3 rounds -80% 1RM). Blood samples were taken before and 24 hours after the last training session to determine serum concentrations of aspartate aminotransferase, alkaline phosphatase, and alanine aminotransferase. Data were analyzed using independent and dependent t-test at a significance level of α=0.05. Results:The results showed that 12 weeks of progressive resistance training has significant effect on between group changes of aspartate aminotransferase(p=0.003), alkaline phosphatase (p=0.014), alanine aminotransferase(p=0.040) and the ratio of aspartate aminotransferase to alanine aminotransferase(p=0.006) in sedentary obese men. Significant between group changes were observed in muscle strength(p=0.001) and body fat percentage(p=0.038). Progressive resistance training is likely to reduce the concentration of aspartate aminotransferase, alkaline phosphatase, and alanine aminotransferase in the blood of obese obese men by improving body composition, muscle strength, and oxygen consumption. Conclusion:Progressive resistance training, possibly with improved body composition and muscle strength, can decrease the concentration of aspartate aminotransferase, alkaline phosphatase, and alanine aminotransferase in sedentary obese men.
negar ashrafi; lotfali BOLBOLI; ali khazani; asadalah asadi
Abstract
Aim: Unfavorable changes occur in the body composition and lipoprotein that are related to the loss of estrogen levels after menopause. The aim of this study was to investigate the effect of 12 weeks elastic band resistance training on mir-217 expression and cardiovascular risk factors in menopausal ...
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Aim: Unfavorable changes occur in the body composition and lipoprotein that are related to the loss of estrogen levels after menopause. The aim of this study was to investigate the effect of 12 weeks elastic band resistance training on mir-217 expression and cardiovascular risk factors in menopausal obese elderly women. Method: In this single blind randomized clinical trial (RCT), 49 elderly women with obesity (age 64.13 ± 3.68 years, fat percentage 45.4 ± 6.56 %, BMI 33. 1 ± 3.71 kg/m2) were divided into two groups: control (n=10) and training (n = 14). The training group performed elastic band resistance training for 12 weeks and three sessions per week for all major muscle groups. Forty eight hours before and after 12 weeks of intervention, a DEXA test was performed. Results: The results of the intergroup comparisons indicated a significant decrease in mir-217 expression and LDL levels and a significant increase in HDL in the training group compared to the control group (P≤0.05), whereas there was no significant difference in body weight, body mass index, fat percentage, total cholesterol and CRP (P≥0.05). Conclusion: It seems that 12 weeks elastic band resistance training have been able to modulate and reduce the serum concentration of mir-217 in obese elderly women, which was associated with a decrease in LDL levels and increase levels of HDL. Although body mass index, fat percentage, total cholesterol and CRP Significant changes were not observed, which requires further investigation in this field.
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 ...
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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.
Fatah Moradi
Volume 4, Issue 2 , December 2015, , Pages 137-149
Abstract
Objective: Even in young people, insulin resistance is associated with physical inactivity and obesity. It has been shown that novel insulin resistance indexes have clinical value. The purpose of present study was to investigate the effect of a period of resistance training on novel insulin resistance ...
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Objective: Even in young people, insulin resistance is associated with physical inactivity and obesity. It has been shown that novel insulin resistance indexes have clinical value. The purpose of present study was to investigate the effect of a period of resistance training on novel insulin resistance indexes in sedentary young obese men. Methodology: In a semi-experimental study, twenty one sedentary young obese men were randomly placed at two groups: resistance training (n=10, 26.7±3.3 yr, 32.6±2.8 kg/m2) and control (n=11, 27.1±3.1 yr, 32.2±3.3 kg/m2). General characteristics of subjects, serum resistin concentration, and homeostasis model assessment-adiponectin (HOMA-AD), adiponectin-resistin (AR), and (insulin resistance) IRAR indexes were assessed before and after the training. Resistance training protocol consisted of twelve weeks weight training (3 sessions per week, 10 stations, 3 sets 8-12 repetitions in each station, intensity 60-80% of one repetition maximum, rest between sets 1 min and between stations 2 min, duration of main training 65-70 min per each session). Results: Resistance training decreased serum resistin concentration (P<0.05), HOMA-AD (P<0.05), AR (P<0.05) and IRAR (P<0.05), while none of mentioned parameters in control group showed any significant changes. The compartion pre-test and post-test means of these indexes between two groups showed significant differences (P<0.05). Conclusion: Resistance training reduces levels of novel insulin resistance indexes in sedentary young obese men that can have a practical value with regard to prevention against risk of cardiovascular and metabolic diseases for this population group.
Ahmad Abdi; Nasrin Ramezani; Hasan Haji
Volume 5, Issue 1 , June 2015, , Pages 59-68
Abstract
Aim: Oxidative stress is an affective factor in insulin resistant, diabetes and other problems increasing blood glucose that seen in type 1 and 2 diabetes is an effective factor in producing oxidative stress. The aim of this study was to evaluate the effect of resistance training and Coriandrum sativum ...
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Aim: Oxidative stress is an affective factor in insulin resistant, diabetes and other problems increasing blood glucose that seen in type 1 and 2 diabetes is an effective factor in producing oxidative stress. The aim of this study was to evaluate the effect of resistance training and Coriandrum sativum on oxidative stress factors in diabetic male rats. Method: The present experimental study was conducted on 40 adult male rats. After induction of diabetes, the rats were randomly divided into four equal groups (1: resistance training, 2: resistance training-Coriandrum sativum extract, 3: Coriandrum sativum extract, and 4: control). Diabetic condition was induced by using 55 mg af streptozotosin per one kg body weight. Then they performed 6 weeks of resistance training (five days a week for 6 weeks and with intensity of 30-100% rats weight) and drank oral Coriandrum sativum extract (150 mg/kg daily). After 6 weeks serum levels of total antioxidant capacity (TAC), superoxide dismutase (SOD) and catalase (CAT) were measured. Results: The results showed that resistance training alonge with Coriandrum sativum extract increased serum levels of TAC, SOD and CAT (p<0.05) significantly. Also, TAC level was increased in resistance and Coriandrum sativum extract groups (p<0.05). Conclusion: It seems that six weeks at resistance training combined with Coriandrum sativum extract may have a positive effect on body anti-oxidant system and treatment of diabetes.
Rozita Fathi; Parvaneh NazarAli; BiBiSara Imeri
Volume 3, Issue 2 , July 2014, , Pages 105-113
Abstract
Abstract
Aim: Nesfatin-1 is a novel adipokine secreted by adipose tissue and interfere in regulation of blood Glucose, improvement of insulin sensitivity, appetite regulation, energy homeostasis and metabolic function. Given the importance of resistance exercise in prevention and treatment of overweight ...
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Abstract
Aim: Nesfatin-1 is a novel adipokine secreted by adipose tissue and interfere in regulation of blood Glucose, improvement of insulin sensitivity, appetite regulation, energy homeostasis and metabolic function. Given the importance of resistance exercise in prevention and treatment of overweight and obesity, the purpose of this study was to determine the effect of eight weeks resistance training on plasma levels of nesfatin-1 in overweight women.
Method: Thirty-eight overweight women (age 34.84±5.70 y, BMI 28.82±3.65 kg/ m2, body fat percent 36.34±3.39 % and WHR 0.85±0.04 (means ± SD)) were randomly divided into 2 groups. Resistance exercise training (50 min/day, 60-70% 1-RM, 4 days/week). Fasting blood samples were collected to assess changes in plasma Nesfatin, insulin and glucose levels in before and after 2 months of the training program. Independent t-test and Pearson correlation coefficient were used for further analysis (P
Elaheh Talebi-Garakani; Sajad Aslani; Rozita Fathi; Alii Reza Safarzadeh; Fatemeh Roudbari
Volume 4, Issue 1 , May 2014, , Pages 15-26
Abstract
Aim: Omentin-1 is an adipokine that is highly secreted in visceral adipose tissue compared to subcutaneous adipose tissue and increases insulin sensitivity. The aim of the present study was to investigate the effect of 8-week resistance training on omentin-1¬ plasma levels in insulin resistant male ...
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Aim: Omentin-1 is an adipokine that is highly secreted in visceral adipose tissue compared to subcutaneous adipose tissue and increases insulin sensitivity. The aim of the present study was to investigate the effect of 8-week resistance training on omentin-1¬ plasma levels in insulin resistant male rats. Method: Twenty-four Wistar male rats¬ with average weight¬ 161±23 gr were randomly divided into three groups: health control, insulin resistance control, insulin resistance training. After fructose-inducing insulin resistance to the two groups of insulin resistance control and insulin resistance training bleeding in all subjects was done then training group was exercised for 8 weeks (3d/wk). In the training protocol, a ladder was used on which rats carriedpen loads suspended from their tails. After the training session omentin-1, insulin, glucose, lipids profile plasma concentration and (HOMA-IR) index were measured. Results: The results of this study indicate that 8 weeks of resistance training can cause significant increase of omentin-1 and HDL-C plasma concentration in insulin resistance training group (P≤0.05) and insulin, glucose, cholesterol, LDL-C, TG plasma concentration and (HOMA-IR) index were decreased. Conclusion: This study indicates that resistance training increases omentin-1 plasma concentration in insulin resistance rats and improves lipids and metabolic profile.
Abbasali Gaeini; Aida Bahramian; Mohsen Javidi
Volume 3, Issue 1 , April 2013, , Pages 21-32
Abstract
Abstract
Aim: Diabetes mellitus is a metabolic syndrome which is determined by insulin deficiency-induced hyperglycemic or decrease of in body insulin sensitivity. Chronic inflammation conditions in diabetes are associated with Cyclooxigenase 2 enzyme (COX-2) expression. The major metabolites of this ...
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Abstract
Aim: Diabetes mellitus is a metabolic syndrome which is determined by insulin deficiency-induced hyperglycemic or decrease of in body insulin sensitivity. Chronic inflammation conditions in diabetes are associated with Cyclooxigenase 2 enzyme (COX-2) expression. The major metabolites of this enzyme, which play an important role in cardiovascular homeostasis are Prostocyclin (PGI-2) and Tromboxane (TXA-2). However, Prostocyclin is a potent vasodilator and prevents platelet aggregation and Tromboxane causes vasoconstriction, proliferation of smooth muscles and aggregation and remodeling of platelets. The present study investigates the effect of 8 weeks of resistance training on the expression of COX-2 enzyme and its metabolites such as TXA-2 and PGI-2 in wistar diabetic male rats.
Method: For this purpose, in an experimental study 24 wistar rats were purchased from Pasteur Institute of Iran and divided into resistance training (n=12) and control (n=12) groups. The resistance training protocol included 8 weeks (3 sessions per weeks) of ten sets of ladder ascending with free weights were attached to the rats’ tails (70 to 75% of maximum capacity of carrying free weights by each rat).The animals were sacrificed 48 hours after the last session of training program and blood samples were taken. After the left ventricle was drained, stimulatory and inhibitory factors were measured and the data was analyzed by t-test via spss16 software.
Results: The results of independent t-test showed that there was a significant decrease in blood glucose (P
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: ...
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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
Hamid Mohebbi; Arsalan Damirchi; Faras Hosseino; Farhad Rahmani nia
Volume 2, Issue 1 , April 2012
Abstract
Abstract
Aim: The aim of this study was comparison between of two resistance training protocols, double pyramid and flat pyramid loading pattern, on physical fitness and body composition in young soccer players.
Method: Therefore, 39 young soccer players from Syrian super league were divided randomly ...
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Abstract
Aim: The aim of this study was comparison between of two resistance training protocols, double pyramid and flat pyramid loading pattern, on physical fitness and body composition in young soccer players.
Method: Therefore, 39 young soccer players from Syrian super league were divided randomly into three; control (age: 17.76±0.6 years, weight: 71.9±4 kg, height: 176.2±5 cm and VO2max: 40.7±1.4 ml/kg/min), double pyramid (age 17.46±0.63 years, weight: 71.9±6 kg, height: 176.1±6.7 cm and VO2max 41.2±2) and flat pyramid (age: 18.16±0.83 years, weight: 73.8±7.3 kg, height176.1±5.8 cm and VO2max: 42.3±3.6 ml/kg/min) resistance training groups. The training groups participated 3 times/wk for 8 weeks in resistance training sessions in addition to daily common soccer training sessions. The control group participated only in daily common training sessions. Results: Muscle strength was improved significantly in both double pyramid and flat pyramid loading groups after eight weeks of training (P
Hamid Mohebbi; Mortezah Sangdovini; Bahman Mirzaei
Volume 2, Issue 1 , April 2012
Abstract
Abstract
Aim:The purpose of this study was to compare the effects of 1-set and 3-set resistance training on muscular strength of upper-body and lower-body in untrained men.
Method: For this reason, 18 untrained college students of Guilan University participate in this study as subject. Subjects were ...
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Abstract
Aim:The purpose of this study was to compare the effects of 1-set and 3-set resistance training on muscular strength of upper-body and lower-body in untrained men.
Method: For this reason, 18 untrained college students of Guilan University participate in this study as subject. Subjects were randomly assigned to either the 1-set group (n=9), or the 3-set group (n=9). Subjects trained 3 days per week for 8 weeks. Training intensity was the same for both groups (8RM). At the beginning and the end of the study muscular strength was measured using one repetition maximum test (1RM) in two upper-body exercises (chest press and biceps curl) and two lower-body exercises (leg extension and leg curl). Data was analyzed using paired t-test for within group’s comparison, and unpaired t-test for between-groups comparison.
Results: After 8 weeks, muscular strength significantly increased in all of upper-body and lower-body exercises in both groups (P
Nader Shavandi; Abbas Saremi; Alireza Bahrami; Laila Shegarfi
Volume 1, Issue 2 , July 2011, , Pages 117-127
Abstract
Abstract
Aim: Insomnia and systemic inflammation are common in end-stage of renal disorder. The purpose of this study was to determine whether a resistance training program during haemodialysis could improve sleep quality and systemic inflammation in haemodialysis patients.
Method: This study is a ...
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Abstract
Aim: Insomnia and systemic inflammation are common in end-stage of renal disorder. The purpose of this study was to determine whether a resistance training program during haemodialysis could improve sleep quality and systemic inflammation in haemodialysis patients.
Method: This study is a cross- sectional study which was performed within a haemodialisis unit of Ghiasi Hospital. Fifteen haemodialysis patients (age= 52.2±9.4 yr, body mass index= 23.4±2.39 kg/m2) participated in this study. The patients were randomly assigned to resistance training (n=8) and control (n=7) groups. The training group participated in 8-week resistance training during dialysis (three times/ week, 60 min/ session). The intensity of the exercise program is condition level 12-16 according to the rate of perceived exertion (RPE) (moderate intensity). Sleep quality [the pittsburgh sleep quality index (PSQI)], C-reactive protein (systemic inflammatory index), and muscular fitness were measured prior to and after the intervention.
Results: Resistance training during dialysis improved the sleep quality index and muscular fitness in haemodialysis patients (p
Zinab Gurgin; Reza Gharakhanlou; Abdolhosin Parnow; Somayeh Rajabi; Mehdi Hedayati
Volume 1, Issue 1 , April 2011, , Pages 1-10
Abstract
Abstract Aim: Nicotinic acetylcholine receptors (nAChRs) are integral membrane proteins and prototypic members of the ligand-gated ion-channel super-family. The Purpose of the present study was to investigate the effect of endurance, resistance and concurrent training on the content of nAChR in fast ...
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Abstract Aim: Nicotinic acetylcholine receptors (nAChRs) are integral membrane proteins and prototypic members of the ligand-gated ion-channel super-family. The Purpose of the present study was to investigate the effect of endurance, resistance and concurrent training on the content of nAChR in fast skeletal muscles of male Wistar rats.
Method: Thirty male Wistar rats (220±15 gr) randomly were divided to four groups and followed 12 weeks of training according to the protocols. Animals of the endurance training group were exercised on treadmill for 12 weeks, 5 times a week, and 60 minutes a day at velocities up to 30 m/min. Animals of the Resistance group were housed in metal cage with a 2m high wire-mesh tower, with water bottles set at the top. Concurrent training group did both resistance and endurance trainings. Forty-eight hours after last session of protocols, animals were anaesthetized and the tibialis anterior (AT) was removed. For nAChR assay and for data analysis, ANOVA and independent- samples t- test were used.
Results: Data analysis showed that fast muscle nAChR content significantly difference between endurance, resistance and concurrent training groups with control group (P
