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Open Access Article
1 - The effect of plyometric, strength and combined exercises training on some performance indicators of elite wrestlers
Asra AsgariThe aim of the present study was to investigate the effect of polymetric, Strength and combined training on some performance indicators of elite wrestlers.The present study was a quasi-experimental with a pre-test and post-test design. The subjects of the present study MoreThe aim of the present study was to investigate the effect of polymetric, Strength and combined training on some performance indicators of elite wrestlers.The present study was a quasi-experimental with a pre-test and post-test design. The subjects of the present study were 32 elite wrestlers from Golestan province with a history of at least 3 years of regular training. Subjects were randomly divided into 4 control groups (n=8), polymetric (n=8), strength (n=8) and combined exercises training(8 subjects). Subjects performed the above exercises for 8 weeks (three sessions per week). Anaerobic power, maximum power, speed and agility were evaluated before and after 8 weeksThe results showed that anaerobic capacity in the combined exercise group increased significantly compared to the control group. Maximum strength was significantly increased in the combined exercise group compared to the control group and the plyometric training group. Maximum strength in the strength training group increased significantly compared to the control group. The speed in the combined training group increased significantly compared to the control group and the strength training group. Also, the speed in the plyometric training group increased significantly compared to the control group and the strength training group. There was no significant difference in agility after eight weeks between groups.The results of the present study showed that the combination of plyometric and strength training compared to strength and plyometric exercises only leads to further improvement of anaerobic capacity, maximum strength and speed in elite wrestlers, but has no effect on improving agility. Manuscript profile -
Open Access Article
2 - The relationship between movement and health
Arsalan DamirchiThe purpose of the study was to investigate the relationship between movement and health and well-being of people in the community. All components of health are of considerable importance; But from the physiological point of view of exercise, what is most discussed is t MoreThe purpose of the study was to investigate the relationship between movement and health and well-being of people in the community. All components of health are of considerable importance; But from the physiological point of view of exercise, what is most discussed is the dimensions of its physical and mental health. According to the World Health Organization, inactivity or lack of regular physical activity is the fourth leading cause of death in the world, accounting for approximately 7% of deaths worldwide.The results of studies show that one of the known and influential factors in improving the quality of life is physical activity; Because it increases the respiratory capacity, improves the circulatory system and heart function, increases neuromuscular efficiency and prevents various diseases.The results of studies have shown that the positive effects of physical activity are not limited to the physical dimension; It also directly involves the psychological dimension. Physical activity increases self-confidence and life expectancy by reducing the risk of chronic diseases, and by increasing hormones such as serotonin, it creates excitement for daily activities and relieves depression. Physical activity increases physical ability and efficiency and promotes health in individuals; Improves vitality, vitality and emotional performance and increases life expectancy.Also, as a non-invasive method, could effects on the function of many organs of the body, including the respiratory, cardiovascular and gastrointestinal systems, it strengthens memory and improves mood, and significantly reduces the costs of physical and mental illness. Manuscript profile -
Open Access Article
3 - The effect of eight weeks of continuous-resistance training on lipid profile and body composition of overweight women
keyvan hejaziBackground and purpose: Lipid profiles play an important role in the pathogenesis of atherosclerosis. We aimed to investigate the effect of eight weeks of continuous-resistance training on lipid profile and body composition of overweight women.Material and Methods: In t MoreBackground and purpose: Lipid profiles play an important role in the pathogenesis of atherosclerosis. We aimed to investigate the effect of eight weeks of continuous-resistance training on lipid profile and body composition of overweight women.Material and Methods: In this semi-experimental study, 24 overweight women were randomly assigned to control (n=12) and experimental (n=12). The program training include: 80-90 min per session, 3 times per week for 8 weeks participate in continuous-resistance. Blood samples were collected 24 hours before training and 48 hours after training session. To make intra and intergroup comparisons t-test for dependent and independent samples were used. Results: Levels of triglycerides, total cholesterol, and low-density lipoprotein decreased significantly, while levels of high-density lipoprotein increased significantly. Body weight and body mass index values decreased significantly at the end of the period.Conclusion: Eight weeks of continuous-resistance training resulted in improved lipid profile and body composition at the end of the training period. Therefore, the results of our research suggest that a continuous-resistance training program can improve the health of overweight women. Manuscript profile -
Open Access Article
4 - The effect of eight weeks of interval hypoxic (low oxygen) on capacity of the lung and record chest in adolescent elite swimmers
Hossein NajafgholizadehPurpose & Background: This study aimed to evaluate the effects of hypoxia training on lung volumes, capacity and record of swimming crawl in adolescent elite swimmersMethodology: 22 of elite swimmers with the average age of 15±1.90 were selected non-randomly MorePurpose & Background: This study aimed to evaluate the effects of hypoxia training on lung volumes, capacity and record of swimming crawl in adolescent elite swimmersMethodology: 22 of elite swimmers with the average age of 15±1.90 were selected non-randomly and purposefully. The experimental group for 8 weeks and 3 sessions per week (24 sessions) were swimming by hypoxia training. The control group also were swimming in the 8 weeks of regular exercise. Spirometry test record of 48 hours before and 48 hours after exercise were taken from both groupsResults: The variables statistic results showed a significant increase in forced vital capacity FVC, forced expiratory volume in one second FEV1, forced expiratory volume in the first second of the of forced vital pressure FEV1 / FVC, vital capacity inspiratory pressure FIVC, the inspiratory pressure in the first seconds FIV1, ratio of inspiratory pressure in the first seconds of the vital capacity inspiratory pressure FIV1 / FIVC and record of swimming chest crawl, in hypoxia group.Conclusion: These results suggest that the practice of hypoxia training is likely to affect the volume of lung and respiratory muscles, in addition it can improve swimming performance in adolescent elite swimmers. Manuscript profile -
Open Access Article
5 - Effect of resistance training with two different intensities on the amount of myostatin and folicatin and the ratio of folinatcin to myostatin in young women
parasto roshandel ali yaghoubiMaterials and Methods: for this purpose, twenty young women in the age group 20 to 30 selected in sampling method and randomly divided into 3 groups and And performed resistance training and TRX. The training program for both training groups was circular exercises with MoreMaterials and Methods: for this purpose, twenty young women in the age group 20 to 30 selected in sampling method and randomly divided into 3 groups and And performed resistance training and TRX. The training program for both training groups was circular exercises with three sessions per week for eight weeks. The main training was performed in seven circular stations including: squat, leg press, chest press, leg extension, shoulder, arm back, arm forward in both training groups. Exercise intensity initially started at 40-50% 1RM and increased at week 5 and 6 with 60-70% 1RM. Stage 4: After eight weeks of resistance training and TRX.Findings: the results showed that Serum levels of myostatin and folistatin decreased and increased after eight weeks of resistance training, respectively, but these changes were not significant in the TRX training group. Eight weeks of resistance training and TRX had no significant effect on folistatin / myostatin ratio in young women. There was also no significant difference between the groups in the post-test compared with the serum levels of myostatin, folistatin and the ratio of folistatin to myostatin.Conclusion: according to the findings of this study it can be concluded that Resistance training can stimulate myostatin and folistatin gene expression in human specimens. The results of this study can be used as a kind of exercise intervention in rehabilitation programs and bodybuilding exercises in young disabled people. Manuscript profile -
Open Access Article
6 - Obesity and overweight and its relationship with cardiorespiratory fitness in adolescent girls
اکرم اصفهانی نیا shadmehr mirdar harijaniThe purpose of this study was to investigate the rate of obesity and overweight and its relationship with cardiorespiratory fitness in adolescent girls in Aliabad Katoul city. The research method of this research is descriptive and inferential which has been conducted i MoreThe purpose of this study was to investigate the rate of obesity and overweight and its relationship with cardiorespiratory fitness in adolescent girls in Aliabad Katoul city. The research method of this research is descriptive and inferential which has been conducted in the field. The population of the study includes 1816 girl students aged 12 to 14 years which 316 students were selected as a sample based on Udinsky table. To estimate the maximum oxygen consumption, a 20-meter shuttle run test was used, Body Mass Index was used to calculate obesity and overweight and subcutaneous fat thickness was used to calculate body fat percentage. Subcutaneous fat thickness was measured at three points in the triceps, calf, and subscapular by a Harponden caliper. Pearson correlation method was used to investigate the relationship between obesity and overweight with cardiorespiratory fitness.Findings showed that the percentage of body fat in adolescent girls’ students increased with age. The findings also showed a decrease in cardiorespiratory fitness of girls’ students with age. According to the results of the study, it is suggested that families, physical education teachers and education officials in schools to include regular activities to improve the respiratory fitness and reduce fatness and overweight of students in their program. In addition, programs increase parents 'awareness about their children's physical condition, solve the problems of overweight and obesity, and improve students' cardiorespiratory fitness. Manuscript profile -
Open Access Article
7 - The Effect of eight weeks Aerobic Training with Low or High Intensity on Cardiovascular System, Aerobic and Anaerobic Power in Overweight Men
Ali Mostafaloo Hadi RohaniThe purpose of this study was to the Effect of eight weeks Aerobic Training with Low or High Intensity on Cardiovascular System, Aerobic and Anaerobic Power in Overweight Men. 24 overweight men (weight, 86.3±13.5 kg; age, 24.6±0.3 yrs; VO2max, 29.3± MoreThe purpose of this study was to the Effect of eight weeks Aerobic Training with Low or High Intensity on Cardiovascular System, Aerobic and Anaerobic Power in Overweight Men. 24 overweight men (weight, 86.3±13.5 kg; age, 24.6±0.3 yrs; VO2max, 29.3±10.3 ml/kg/min) participated in an eight week intervention. The subjects were randomly assigned to each of High Intensity Training [70-80% VO2max] (HI), Low Intensity Training [40-50% VO2max] (LI) and/or Control (C) groups. Exercise training was including running a same distance for both trial groups (isovolumic) with different intensities in each session and three sessions/week. Resting blood pressure and heart rate were measured before and after the intervention. VO2max and anaerobic power were estimated using Cooper and RAST tests, respectively. A significant difference was found between two experimental groups in min power and mean power, but not in max power and fatigue index. Significant changes shown in heart rate from pre to post measurements in both experimental groups which it was grater in HI compare to LI group. VO2max significantly increased in experimental groups but has no significant difference between them. Systolic blood pressure, also, significantly altered in both experimental groups which it was slightly, but not significantly, higher in HI in compare to LI group. However, diastolic blood pressure was unchanged. So, exercise training with high intensity may have more effects on some cardiovascular and anaerobic power parameters in overweight peoples. It seems that aerobic training advantage in relation to aerobic power may not be dependent on its intensity. Manuscript profile -
Open Access Article
8 - Effect of Intensive Periodic Interval on Cardiovascular Risk Factors (Triglyceride, Total Cholesterol, Low-density Lipoprotein, High-density Lipoprotein, Systolic and Diastolic Blood Pressure) in Obese Men
mahdi marezlooThe purpose of study was to determine the effect of intensive periodic interval on cardiovascular risk factors in obese men. This study was a Quasi-experimental design by using pre-test and post-test. 91 participants randomly allocated into two groups and samples were s MoreThe purpose of study was to determine the effect of intensive periodic interval on cardiovascular risk factors in obese men. This study was a Quasi-experimental design by using pre-test and post-test. 91 participants randomly allocated into two groups and samples were students of Islamic Azad University of Gorgan branch with body mass index classes above 30 kg/m2. Instruments of study included blood collection devices (cotton, alcohol, syringe, test tube) and digital scales and laboratory biochemistry equipment to examine blood. Independent t-test was used to analyze the data. Findings of the study have shown that 6 weeks of intensive periodic interval exercise had no effect on triglyceride levels, total cholesterol and systolic and diastolic blood pressure in obese men. Also, 6 weeks of intensive periodic interval exercise had no effect on high-density lipoprotein in obese men, but in low-density lipoprotein had observed a significant difference. Low-intensity aerobic exercise such as walking has an important role in controlling systolic and diastolic blood pressure. Regular physical activity has effect in increment high-density lipoprotein and also had a protective role in the heart. Also, population with low-density lipoprotein can use intensive exercise with 55% maximum heart rate for 30 minutes in day and 5 days per week to maintain health. Manuscript profile -
Open Access Article
9 - The effect of general and local fatigue on the simple hammer service of disabled male volleyball players in Alborz provinc
shamci allami mehmandoustiAbstract The purpose of this study was investigating the effect of general fatigue and local fatigue on the simple hammering serve of disabled male volleyball players in Alborz province. Thus, 12 disabled male players were used in volleyball field. The subjects particip MoreAbstract The purpose of this study was investigating the effect of general fatigue and local fatigue on the simple hammering serve of disabled male volleyball players in Alborz province. Thus, 12 disabled male players were used in volleyball field. The subjects participated in this study with their own satisfaction, while enjoying the best simple hammering serve stroke techniques. At first, each subject made 5 simple hammering serves in the pre-test stage and performed 5 simple hammering serves after the implementation of general and local fatigue protocols. The general fatigue protocol included a simulated station that the person performed without resting until getting tired, and in the local fatigue protocol, only the elbow opening muscles group were practiced.in each protocol, a Borg effort test (10 points) was used to measure fatigue. For statistical analysis, analysis of variance measurement was used. The result showed that local fatigue on simple hammered serves disabled player had a significant effect on alpha level 0.05 and general fatigue had no effect on the simple hammering of the disable volleyball player and there was no relation between the two general and local fatigue. Manuscript profile -
Open Access Article
10 - Comparison of level of physical activity, Body Mass Index and body image satisfaction of adolescent girls before and after one year of coronary quarantine
Zahra Abdollahian Some’ehsaraei Mohammad Reza Fadaei ChafyThe aim of this study was to compare the level of physical activity, Body Mass Index and body Image satisfaction of adolescent girls before and after one year of coronary quarantine. The method of the present study is descriptive-comparative. The statistical population MoreThe aim of this study was to compare the level of physical activity, Body Mass Index and body Image satisfaction of adolescent girls before and after one year of coronary quarantine. The method of the present study is descriptive-comparative. The statistical population of the study included 800 adolescent female students aged 13 to 15 years in the city of Some’eh Sara. A statistical sample of 192 non-randomized methods was obtained. Two standard questionnaires “Physical activity of children and adolescents” and “Multidimensional body-self relationships” were used to collect data online. Data analysis including descriptive statistics (mean and standard deviation) and inferential statistics (Kolmogorov-Smirnov test and paired t-test) were performed using SPSS-23 software. The findings of the present study showed that there is a significant difference between the mean level of physical activity of adolescent girls before coronary artery and one year after coronary artery quarantine (p=0.044), but between the mean Body Mass Index (p=0.073) and the average body image satisfaction before coronary artery and one year after coronary artery quarantine. No significance was observed (p=0.9). So, contrary to expectations, teenage girls maintained their weight and body image during the corona. Manuscript profile -
Open Access Article
11 - Determining the relationship between physical activity levels and some psychological factors with lipid peroxidation and antioxidant index in middle-aged women
tahereh abbasiAbstractThe aim of this study was to determine the relationship between the level of physical activity and some psychological factors on lipid peroxidation and antioxidant index in middle-aged women. The research method of the present study is correlational. The statist MoreAbstractThe aim of this study was to determine the relationship between the level of physical activity and some psychological factors on lipid peroxidation and antioxidant index in middle-aged women. The research method of the present study is correlational. The statistical sample of this study included 30 middle-aged female employees of Gorgan Islamic Azad University who were systematically selected randomly. A researcher-made questionnaire to determine the level of physical activity and the standard Lavibund (1995) stress, anxiety and depression questionnaire were used to collect research data. Pearson correlation test was used to analyze the data. The findings of the present study indicated that there is a significant relationship between the level of physical activity with lipid peroxidation and the total antioxidant index of middle-aged women. There is also a significant relationship between some psychological factors (stress, anxiety and depression) with lipid peroxidation in middle-aged women. While it was observed that there is no significant relationship with the total antioxidant index of middle-aged women. Findings indicate that the level of oxidative enzymes has a significant relationship with physical activity and psychological factors (stress, anxiety and depression), so it is important to pay attention to physical activity and modulate the level of psychological factors for health. Manuscript profile -
Open Access Article
12 - The effect of seven weeks of hamstring static stretching movements on flexibility and speed of young football players
Nasser Bay Shahnaz Noorian Mahmood SheikhThe purpose of the study was to investigate the effect of seven weeks of static hamstring stretching on flexibility and speed of adolescent football players. The population of the study included seventy six youth football players in Ramian city in 2017. Twenty four foot MoreThe purpose of the study was to investigate the effect of seven weeks of static hamstring stretching on flexibility and speed of adolescent football players. The population of the study included seventy six youth football players in Ramian city in 2017. Twenty four football players were selected by available sampling and randomly divided into experimental and control groups. The Wells test was used to measure the flexibility of the participants and the 20-meter sprint test was used to measure the speed. Descriptive and inferential statistics were used for statistical analysis. In the inferential section, independent and paired t-tests were used.The results showed that seven weeks of static hamstring stretching had an effect on the flexibility of adolescent football players. Also, the results showed that seven weeks of static hamstring stretching affected the speed of adolescent football players. According to the finding, it's recommended that static hamstring stretching improve the performance of adolescent football players. Manuscript profile -
Open Access Article
13 - The Effectiveness of 8 weeks of Proprioceptive Neuromuscular Facilitation Stretching on Agility and Explosive Power in Female Students
Hojatollah Nikbakht Fatemeh HosseiniIntroduction: The purpose of this study is to determine the effective of 8 weeks of proprioceptive neuromuscular facilitation training on agility and explosive power among female students in department of physical education and sports sciences in Islamic Azad University MoreIntroduction: The purpose of this study is to determine the effective of 8 weeks of proprioceptive neuromuscular facilitation training on agility and explosive power among female students in department of physical education and sports sciences in Islamic Azad University, Ali Abad Katoul branch. Methodology: Forty one participants selected for this study. The subjects were randomized in two groups included experimental group (N=21) and control group (N=20). Experimental group performed for 8 weeks, 3 times per week and at least 2 minutes PNF stretching protocol per session after warm up. The control group didn’t participate in PNF protocol. The subjects measured in before and after sessions. Results: The results of the study showed that there was a significant difference between the mean explosive power of the experimental group in pre and posttest, while there was no significant difference between the mean agility (p ≤ 0.05Conclusion: Results of the study recommended that 8 weeks of training that facilitates deep neuromuscular receptors by stretching-releasing the hamstring muscle method can increase the explosive power, so use this method to athletes who successfully perform their skills to power functions and need an explosion, it is recommended. Manuscript profile
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