جستجوی مقالات مرتبط با کلیدواژه « wrestler » در نشریات گروه « تربیت بدنی »

The purpose of the current study was to investigate the effect of HMB-FA supplementation on muscle damage indices in elite wrestlers. A total of twenty wrestlers selected in two supplement- exercise (n=10) and placebo- exercise (n=10) groups to participate in a simulated wrestling protocol. Subjects were randomly assigned to receive either 3g/d of HMB-FA or a placebo. Blood samples to measure serum creatine kinase (CK) and lactate dehydrogenase (LDH) were taken before taking the supplement, after taking the supplement, immediately after the first repetition of the simulated wrestling protocol, immediately after the third repetition of the simulated wrestling protocol, immediately after the fifth repetition of the simulated wrestling protocol. The perceived recovery status (PRS) was assessed immediately before the first, second, third, fourth, and fifth repetitions of the simulated wrestling protocol. The results were analyzed using ANCOVA analysis of covariance and analysis of variance with repeated measures. The results of this study showed that the values of muscle damage indices, including CK, LDH decreased significantly more than the placebo group in the HMB-FA group (p<0.05). There was also a significant change for PRS, which significantly decreased in the placebo group compared to HMB-FA (p<0.05).Therefor, it can be concluded that HMB-FA supplementation appears to improve muscle damage indices in wrestlers' simulated wrestling protocol.

The purpose of this study was to investigate the effect of an 8 week highintensity exercise on selected physiological variables of elite wrestlers. 16 young wrestlers (age 19.1±1 year and weight 74.9±17.3 kg) attending the national Greco-Roman camps participated in this study. Physiological variables included in this study were weight, body fat percentage, maximal oxygen consumption, upper and lower extremities anaerobic power, muscular endurance, agility, and handgrip strength. These variables were measured before and after 8 weeks (24 sessions reviewing and practicing techniques,16 sessions of combat (live) wrestling,8 sessions strength training, 8 sessions interval running, 4 sessions of circuit training, 4 sessions of elastic band training and 4 sessions of plyometric training) specific exercise training. The normality of data was checked by Kolmogorov - Smirnov normality measure samples, and data were analyzed with pair sample t-test to compare variables before and after the training program. Results showed that there were significant differences between weight, body fat percentage, maximal oxygen consumption, the Maximum anaerobic power of upper and lower extremities, upper extremities muscular endurance, and handgrip strength of pre and posttest. According to the results of this study, it seems that the applied training program had the main effect on physiological variables such as weight, body fat percentage, maximal oxygen consumption, anaerobic power, muscular endurance, and muscular strength of elite wrestlers that will increase the qualitative athletic performance.

The aim of the present study was to investigate the effects of a 12 week Wrestling specific warm-up program on dynamic balance in cadet wrestlers.
The study population included all cadet wrestlers in the city of Rasht from among whom 24 freestyle wrestlers were selected by the convenience sampling and divided into intervention and control groups. The Intervention group performed a Wrestling warm-up program for 12 weeks, three times a week and the control group performed routine warm-up during the same period. Y balance test was used for the assessment of dynamic balance in pre and post phases of the program. Independent samples t test, Dependent samples t test, and p-test were used for data analyses with preset alpha value of p The results indicated that there was a significant increase in reach distance of Y balance test and a significant decrease in the number of wrestlers at high risk in intervention group after implementation of 12 weeks wrestling warm-up program (p It seems that the wrestling warm-up program can improve the dynamic balance. Therefore, it is recommended that wrestlers and coaches use this new warm-up program before the specific training.

The purpose of the present study was to compare the effect of acute administration of garlic, coenzyme Q10 and sodium bicarbonate supplements on plasma lactate excretion rate in wrestlers after performing single bout of exhausting activities.

Male wrestlers used their special supplement (Q10, garlic, sodium bicarbonate) in each period, and the control group did not receive any intervention. Bruce test was performed two hours after taking the supplements. Plasma lactate levels were collected immediately, 30 minutes and one hour after the test. The process was repeated three times a week apart, with the groups changing their supplementation.

The results showed that the duration of run-up to exhaustion after garlic and sodium bicarbonate supplementation was significantly higher than the control group (p ≤0.03; p≤0.01). Plasma lactate levels were higher in the bicarbonate groups immediately after exercise (p ≤0.01; p≤0.01; p≤0.03). Plasma lactate levels were significantly lower in the sodium bicarbonate group 30 minutes and one hour after exercise than in the other three groups.

Sodium bicarbonate supplementation reduced lactate excretion more rapidly than other supplements compared to other supplements. Sodium bicarbonate supplementation may be more useful for athletes who have multiple races a day.

The aim of this study was to investigate the effect of eight weeks of high intensive exercise on selected biomechanical and anthropometrical variables in elite wrestlers.
Sixteen young wrestlers (age 19.1±1 years and weight 74.9±17.3 kg) attending the national Greco-Roman camps participated in this study. Biomechanical and anthropometrical variables included weight, body fat percentage, body mass index, balance, general body speed and acceleration, active range of motion of the joints, upper and lower extremities power and hand grip strength. These variables were measured before and after 8 weeks (67 sessions) of special exercise training. The normality of data was checked by Kolmogorov- Smirnov normality measure and data were analyzed with Paired- samples t-test to compare variables before and after training program, with a significance level of (P≤0.05).
Results showed that there were significant differences between weight, body fat percentage, body mass index, semi-dynamic balance in the medial and anterior-medial directions, upper extremities power, the range of lateral flexion to the right of the neck and hip flexion of pre and post-test.
Based on the results, it seems that applied training program had main effect on biomechanical and anthropometrical variables such as weight, body fat percentage, body mass index, power, balance and active range of motion of elite wrestlers that will increase the qualitative athletic performance.

Mental rotation is the ability to imagine how an object will look if rotated away from the orientation in comparison with the one which is actually presented. That is a component of spatial abilities. This research aimed at comparing mental rotation ability in those with motor and cognitive experiences. The method of this research was causal-comparative and the sample was selected purposively. The sample included 60 boys with a mean age of 17. 17 years (motor experience = 20 subjects in wrestling group، cognitive experience = 20 subjects in computer game group and without motor and cognitive experiences (control) = 20 subjects). Peters et al. Mental Rotation Test (version A) (1995) was used to compare mental rotation. The results of the one-way ANOVA test showed a significant difference between the control group and wrestling group and also between the control group and PC game group (P≤0. 01). There was no significant difference between wrestling and PC game groups in mental rotation (P>0. 05). These findings indicated the positive effects of motor and cognitive experiences on cognitive development (mental rotation).

The aim of this study was to determine motivational priorities of participation in wrestling among wrestlers (Greco-Roman and freestyle) in Kermanshah city. The statistical population consisted of 4612 wrestlers of Kermanshah city. 242 wrestlers in different age groups (99 adolescents، 56 juniors and 87 seniors) were selected as a sample with random sampling method. Personal information questionnaire and Gale participation motivation questionnaire were used to collect data and at the end of the training session، the questionnaires were completed. Friedman test، one-way analysis of variance and SPSS software version 13 were used to analyze data at significance level of 0. 05. Gaining success (7. 44 ranking)، energy depletion (6. 15 ranking) and meeting friends (4. 57 ranking) were the first priorities to participate in wrestling. There was no significant difference in motivation of participation among different age groups (P>0. 05). Results indicated that gaining success was the main factor of participation in wrestling in Kermanshah and there was no significant difference in the priority of motivational factors among different age groups and those groups with various wrestling participation records.

In order to make a physiological profile for senior Iranian Greco-Roman style wrestlers, 71 wrestlers (aged 22.7+2.3 years, body weight 81.5+20.2 Kg), who were invited to the national training camps for a year, were tested on body composition (3-sites skin fold, LBM, BMI), relative strength (hand grip, bench press, squat, dead lift), muscle endurance (sit ups, push – ups, pull – ups),Vo2 max (Bruce test), speed (36 m running), agility (4 9 m running), flexibility (sit and reach, trunk extension, shoulder flexibility), reaction time (bilateral), alactic anaerobic power (ergo jump 15s, arm Wingate 8s, leg Wingate 8s), lactic anaerobic power (ergo Jump 30s). Major results (mean + SD) are as follows: BF% =11.3+ 3.8, LMB = 71.8+ 15.5 Kg, BMI = 26.9+ 4 Kg/m2, hand grip = 0.91 + 0.13 W/N, bench press = 1.42 + 0.18 W/Kg, squat = 1.76+0.22 W/Kg, dead lift = 1.9+ 0.18 W/Kg, sit-ups = 71.3+7.1n/min, pull-ups=33.6+11n, push – ups =68+ 8.7 n, Vo2 max = 50.4+5.4 ml.Kg-1.min-1, 36m running =5.13+0.21 s, 49 m running = 9+0.42 s, sit and reach = 39.3+ 5.9cm, trunk extension = 0.67+0.1 cm/cm, shoulder flexibility=0.60+0.1 cm/cm, bilateral reaction time=397+66.6 ms, ergo jump 15s=45.45+6.5 W.Kg-1, arm Wingate 8s=414.6+109.2 w, leg Wingate 8s=475+89.4 w, ergo jump 30s=40.9+5.9 w.Kg-1. After data gathering, descriptive statistics were used for providing a profile for the above – mentioned tests by SPSS and EXCEL. Generally, results showed that Iranian Greco-Roman style wrestlers have a good physiological profile like many of their opponents from other countries.