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Aim: This study assessed the effect of beetroot juice supplementation on the dynamic and static balance performance of wrestlers at rest and fatigue conditions. Material and methods: The study was conducted with 3 trial days. The study is a double blind, randomized, cro ssover design in which eight trained male Greco Roman wrestlers (age 21.87±2.3 years; height 176.87± 4.1 cm; body weight 76.75± 5. 4 kg) consumed beetroot juice (BRJ) (140 ml) or placebo (PLA) (140 ml, cherry juice with lemon juice) 150 min before performin g balance performance test. Subjects were administered standard warm up and then dynamic and static balance tests were performed to the dominant leg with by Biodex Balance System (BBS, Biodex Medical Systems Inc., Shirley, NY) at rest. Following balance te sting, each subject got into a fatigue strength exercise (FSE) to create fatigue for the dominant leg. Immediately after the ( FSE), subjects were applied to dynamic and static balance test to the dominant leg again at fatigue. The same trial procedure was repeated with the other supplement (BRJ or P LA ) in the third testing trial five days later. Paired sample T test was used for comparison of BRJ and P LA balance performance values. Result: Although there were no significant changes in static OSI, APSI balance scores, Static MLSI improved significantly in favor of BRJ in rest . Dynamic OSI and APSI paramet er s improved significantly but not MLSI in the BRJ trial. While all static and dynamic b alance parameters improved statistically, only static MLSI w as not changed by the BRJ trial at fatigue. Conclusion: Consuming BRJ can be useful to maintain balance performance and prevent sports injuries in training or competition. Keywords: Beetroot Juice, Dietary Nitrate, Balance, Wrestlers.

In this study. The research was conducted with the aim of examining the visual reaction values of deaf elite wrestlers (D) and normally hearing elite wrestlers (H). To work. 9 deaf wrestlers (height 179,55±3,74, body weight 78±11, 09) and 9 normally hearing wrestlers who participated in national and international competition were voluntarily joined the research. All of the athletes who are deaf subjects consist of at least 55 dB hearing loss in both ears. The visual hand reaction values of the wrestlers were measured using the electronic reaction time meter Newtest 1000. In the study. all participants' dominant hand were right hand. The data were analyzed using the SPSS (Version 22.0) program. Independent T test was performed to determine the difference between the two groups in which the obtained data showed normal distribution. The significance level was evaluated as p <0.05. In the study findings. The average of right and left hand reaction timing between groups and between intergroup were similar. D group had significantly higher height and body weight averages than group N (P <0.05). As a result, deaf athletes have similar reaction times to normal athletes so it is seen that loss of hearing does not make a difference at least in the result of this study.

Background and Study Aim. This study aimed to investigate the effect of 8-weeks of wrestling training on unilateral muscle imbalances. Material and Methods. Eight male elite Greco-Roman wrestlers (wrestling group) (age 21.25±2.7 years, height 176.6±6.8 cm, body weight 81.00±9.3 kg) and seven recreationally active male (control group) (age 21.3±3.2 years, height 173.6±4.7 cm, body weight 67.3±5.3 kg) voluntarily participated in the study. Both group participants were students in the Selcuk university in the period of study. Wrestlers were in the off-season before the training period of 10 weeks. Before and after the 8-weeks training period, wrestling and control groups were tested for isokinetic torque measurement. In the training period, the wrestling group carried out only wrestling training without specific strength training. In this period the control group did not involve in any exercise. Results. In the wrestling group, all quadriceps torque parameters significantly increased for both legs but the torque parameters of the hamstring did not change, except the average torque of the left leg. The peak and average torque of the H/Q (Hamstring/quadriceps) significantly decreased after training periods for right leg in the wrestling group. No parameters significantly changed in the control group. Conclusions. Specific hamstring strength exercises can be put in training programs to avoid from a possible knee injury.

Aim: In the aim of this study is to examine the effects of 12-week boxing training once a week on some physical parameters. Material and Methods: In the study, 13 recreation students (age 19.04±8.15 years, weight 66.75±6.85kg, height 175.46±4.44cm) were participated. First of all, the height and weight measurements were taken, and then biceps diameter measurements were done to participants. After anthropometrics measurements, a standard 15-minute warm-up protocol was applied before the measurements followed by tests. Lastly standard 30 seconds push-up test, passive bar hang, right and left hands reaction time were applied to participants. Basic boxing training was given to the volunteers for a total of 2 hours per day in a week for 12 weeks. After the 12week boxing training program, the second measurements were made under the same conditions again and recorded. Results: The result of the study is that it was found that there was a significant change in some parameters of the individuals who did boxing training 1 day a week. A significant difference (p<0.05) was found in the right biceps' diameter of the group and the reaction time of the right hands of the group. Only a significant difference in the right arm was seen, it can be caused the majority of the group was right-handed. Conclusion: 12-week boxing training period was increased the number of push-ups and passive bar hanging times. As a result, one-day boxing training in a week for 12 weeks can improve individuals' abilities.