نشریه مطالعات کاربردی تندرستی در فیزیولوژی ورزش
سال سوم شماره 1 (بهار و تابستان 1395)

Adipose tissue as an active endocrine organ has a pivot role in regulating metabolic states of the body, via secretion of pre- and anti- inflammatory adipokines. This study investigated effect of one session of resistance training on levels of adipolin, furin, transforming growth factor β1, tumor necrosis factor-α and insulin resistance in sedentary obese women. For this purpose 20 sedentary postmenopausal obese women (BMI>30Kg/m2, aged 50-65 years) randomly assigned in to experimental (n=12) and control (n=8) groups. Subjects in experimental group participated in one session of resistance training (2 sets of 8 repetitions at 40% of one-repetition maximum for 30 minutes). Serum levels of adipolin, furin, transforming growth factor β1, tumor necrosis factor-α, insulin and fasting glucose measured before and immediately after training session. Statistical analysis was done by paired and independent t-test and Pearson correlation and P

The purpose of this study was to investigate the effects of Pyramidal and Reverse-Pyramidal Resistance Training on Electrocardiogram variables(Q-T space and T wave) In active male. Thirty active males recruited in this study randomly, and allocation in groups (control, Pyramidal and Reverse-Pyramidal Resistance Training). Pyramid and reverse pyramid groups performed resistance training for 12 weeks/3 times in week. One-repetition maximum in chest press, leg press and leg squat, ECG variables,systolic and diastolic blood pressure measured before and after Pyramidal and Reverse-Pyramidal Resistance Training. Klmogrov – Smirnov, One way ANOVA with repeated measures, bonferroni post Hoc test used for analyze.Twave and chest press, leg press and leg squat in experimental groups demonstrated a significantly increase in strength, without any different between experimental groups(p≤0.05). Pyramidal and Reverse-Pyramidal Resistance Training illustrated Significant improves in QT space(p≤0.05) and no Significant decline in SBP and DBP and RHR(p≥0.05). This Results demonstrate that not haven’t any different between Pyramidal and Reverse-Pyramidal Resistance Training in improves muscle and hearts physiological function

Heavy and prolonged training, leads to Physical disturbance and decline athletic performance. Decreasing training load during tapering may prevent decrements in athletic performance and the side effects of overtraining syndrome. The purpose of the present study was to determine the effects of two type of tapering on some physiological characteristics of elite hockey players.The population of this study consisted of eighteen indoor elite hockey players from the Premier League in central province (mean ±SD, age 22.77±2.30 y r, height 176.7±5.50 cm, body mass.71.95±3.23 kg) with a regular exercise program in a six-month period (3 session per week). After the period of preparation training, some physiological parameters including aerobic power, anaerobic power, strength and flexibility were determined and the subjects were divided into two groups based on these physiological measurements. Subjects in two groups either had loads of reduction in the volume of training by 50% or 50% in the intensity of training. After 10 days of reduction training, a pre-test was conducted. Data were analyzed using independent t-test.Results showed that both tapering programs had significant increases in strength, flexibility, agility and that these changes were significantly (P

The purpose of this study was to investigate the effect of progressive resistance training on some cardiovascular risk factors in inactive men. 24 health middle-aged randomly assigned in two resistance training (n=12) and Control (n=12) groups. Participants in experimental group performed 10 weeks of progressive resistance training with 50-85% 1-RM while the control group without any intervention was doing daily activities. Blood samples were obtained from all subjects at baseline and 48-72 hours after last training session in order to investigate of the changes of CVD risk factors, and total plasma homocysteine (Hcy) were measured using ELISA and serum lipid profile measured enzymatically. After 10 weeks of regular resistance training, a significant decrease observed in (Hcy) plasma concentration in trained group compared than control group. Moreover the exercise training induced a significant decrease in cholesterol, LAD-C, and significantly increase HDL-C in resistance training group, while, these indices remained unchanged in the control group. Therefore, according to the results of this study it can be concluded that regular resistance exercise can be used as effective and less-costly therapeutic strategies to control of CVD risk factors in inactive middle-age men

One of the variables and the relative criterion workout and are considered that less essential factor especially when the aim is to increase exercise strength endurance power, is resting between sets. This study aimed to evaluate the effects of 4 different rest intervals on of strength endurance in successive sets with a load equivalent to 75% 1RM was performed.For this purpose, 16 young athletes (ages 19.37 ± 3.24 years, height 178.38 ±5.25 cm, and weight 70.81 ±7.91 kg) were randomly selected and prepared to conduct research. All participants’ bench press and leg press with a distance of 9 sessions 48 hours of each other did the rest. one repetition maximum was measured at the first meeting of the session from 2 to 9 per session, four bench press and leg press with a load equivalent to 75% 1RM exhausting run. In each one of-second rest intervals between sets 30, 90, 210, 270 randomly repeated use and the number was recorded. ANOVA test and post hoc Bonferroni test was used for analysis. The results showed that the average bench press repetitions and feet are resting in the fourth compared to the (pre-test) showed a significant decrease. As well as the ability to repeat with rest intervals of 270 seconds compared to 30, 90, 210 second rest intervals was significantly higher. The results confirm that the sustainability of repetitions depends on the distance rest between sets, so in order to increase the amount of work and endurance power, the use of rest intervals between 210 to 270 is recommended

Training methods and different ways to prepare and brilliant results considered by coaches and athletes was in competitions, therefore Considering the importance of plyometric training in improving athletic performance, the purpose of this study was to the effect of Eight weeks of plyometric training on anaerobic power, fatigue index, explosive legs strength and agility Freestyle wrestlers city of Malekan was 15 to 17 years old. The method of study was semi-experimental and statically population of that 15 to 17 years old 78 freestyle wrestlers had formed the city of Malekan. Therefore, 24 wrestlers qualified for the random sample selection of the target population and based on the results of the fatigue tests matched pairs were divided into two groups of 12 plyometric and control and again after eight weeks of training protocols from both groups were tested. To analysis the data, t-test and paired t-test was performed using the software spss version 19.The findings showed that: after eight weeks of plyometric training, maximum power, power minimum, average power, explosive legs strength and agility was observed a significant difference between two groups (P≤0/05) but the fatigue index of were not significantly different. It seems that wrestlers to increase aerobic capacity, improve the fatigue index, increased explosive leg strength, improve agility and plyometric training with emphasis on respect for the athletes in the physical characteristics of the study sample use

The aim of this study is to comparison of the effects of plyometric and resistance circuit training on body mass index and physical fitness of male teenage student volleyball players. Forty-two volleyball players (15-17 years old) were divided randomly into three groups of plyometric exercises training, resistance circuit training and control group that carried out regular exercise training. Before and after 6 weeks of training, agility, speed, maximum strength and explosive power of lower limbs and body mass index were measured t-test, one-way analysis of variance and Kruskal – Wallis test was used for analysis of data. The results of the t-test showed that both of experimental groups had significant difference in body weight, body mass index, lower limb explosive power and strength. But this difference was not significant in speed and agility. Compared between experimental groups and control group, one-way ANOVA test results showed that plyometric and resistance circuit training have a significant effect on explosive power and strength of the lower limb. But between the groups was not statistically significant difference in speed and agility variables. Plyometric and resistance circuit training improve body mass index, body weight, explosive power and strength of lower limb were young athletes. Of course, circuit resistance training had a greater impact on lower limb explosive power

High intensity exercises increased cytokines of such as visfatin. However, cytokines that are regulated by physiological stimuli such as dietary supplements. Thus, this study was designed to assess effect of contraction high intensity exercise training and supplementation omega-3 with two different doses levels on Visfatin, in elite karate athletes and compare with non-athletes. Therefore 56 males, mean age 24±4/05 years, height 56.177 cm, 23.75 kg of body mass and maximal oxygen consumption per minute at 31.311 ml kg groups were karate athletes and non-athletes participated in this study. Athletes and non- athletes subjects in both groups were, Then each of the main groups divided to 4 groups: Athlete groups Include supplements and exercise groups with 2 doses divided: [e (1.2 g/d); e (1.8 g/d); p and e] and non- athletes groups Include supplements: [s (1.2 g/d); s (1.8 g/d); p and co]. Blood samples from athletes in the following 48 hours ago and after the last training session and no consume any food containing omega-3 following the 12- hour overnight fasting and in the non-athletes group following 48 hours do not consume foods containing omega-3 following the 12-hour overnight fasting were collected. And the Visfatin, in measured by ELISA method and statistical analysis of data showed through the variance factor and post hoc Tokay test to determine where the differences between the groups showed: High- intensity exercise with omega- 3 supplementation for four weeks with two different doses on resting levels of Visfatin has effect on elite karate and also, omega3 supplementation with two different doses has effect on non- athletes