Browsing by Author "Boz, Hilal Kilinc"

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The Effect of Functional Movement Screen and Lower Extremity Training on Hamstring/Quadriceps Ratio in Football Players
(Natl Olympic Committee Ukraine, Kharkov Regional Branch, 2020) Bayrakdar, Akan; Boz, Hilal Kilinc
Purpose: The aim of this study is to determine the effect of functional movement screen and lower extremity training on hamstring/quadriceps (H/Q) ratio in football players. Material: 11 players from Sivas Belediyespor, affiliated to the Turkish Football Federation, participated in this study. The average age of the players involved in the study was 25.75 +/- 4.45, height averages 178.49 +/- 8.72 cm, and body weight averages 69.83 +/- 6.47 kg. Players who participated in the study had previously suffered a knee area injury. In addition to team training for 8 weeks, extra exercises to strengthen their hamstring and quadriceps muscles were conducted 3 times a week. Isokinetic force tests and Functional Movement Screen (FMS) tests were conducted in the study. Data obtained were evaluated in SPSS package 24 program. Results: There was a significant difference in the total score of FMS at the level of p<0.05. Deep squat 13.5%, hurdle step 10.49%, in line lunge 9%, shoulder mobility 3.44%, active straight 6.84%, trunk stability push up 6.84%, rotatuar stability 14.73% and FMS total score 17.24% showed improvement. There was a significant difference in the H/Q ratio between both the right knee and left knee pre-test and post-test at p<0.01 level. The right knee developed at a rate of 600 H/Q at a rate of 17.24% and the left knee developed at a rate of 600 H/Q. Conclusions: As a result, 8 weeks of extra lower extremity exercises can be said to increase the H/Q ratio of football players. It is also seen that the FMS score has increased. Thus, it is thought that the risk of football players having a sports injury again is reduced.
Examination of Physiological and Performance Responses of Repeated Sprint Tests in Football Players
(int Journal Applied Exercise Physiology, 2020) Bayrakdar, Akan; Boz, Hilal Kilinc
Purpose: This research was conducted to examine the physiological and performance responses of repeated sprint tests in football players. Method: 14 amateur male football players participated in the research. Measurements were made at Bingol University Sports Hall. Height, body weight, age, sports year, body mass index (BMI) and body fat percentage (BFP) measurements were taken for defining characteristics of the participants. For repeated sprint measurements, participants participated in straight repeated sprint (6x25m; StRST), 180 degrees shuttle repeated sprint (6x(2x12,5m); ShRST) and 100 degrees repeated change of direction sprint (6x25m; RCODST) tests with 25 second passive rest in random order on three separate days. The best sprint time (BST), total sprint time (TST) and performance decreasing percentage (PDP) values of the participants were determined as performance responses after three different RST. In addition, resting heart rates (HRrest) and the warm-up heart rates (HRwarm) were taken with the help of polar clock. Findings: The mean age of the participants in the study was 20.42 +/- 1.39 years, sport year 4.71 +/- 3.83 years, height 1.74 +/- 0.05 m, body weight 64.77 +/- 7.24 kg, BMI 21.22 +/- 1.97 kg/height2 and BFP 11.20 +/- 3.42 (%). There were no significant differences in the values of HRrest before warm-up and HRwarm before exercise (p>0.05) as a result of the comparison of the different sprint tests. BST and TST values were significantly different at p<0.001 as a result of different sprint tests. The results of the Bonferroni multiple analysis to determine which group the difference is from show in Table 2 that StRST-BST values are better than ShRST-BST and RCODST-BST. Similarly, StRST-TST values are better than ShRST-TST and RCODST-TST values. There was no significant difference in RPEmax values as a result of comparison of different sprint tests. Results: There was no significant difference in the physiological variables and RPEmax values of the participants. However, StRST has been found to give more positive performance responses than ShRST and RCODST.
Investigation of Antropometric and Performance Responses of Core Exercises in Volleyball Players
(int Journal Applied Exercise Physiology, 2020) Boz, Hilal Kilinc
The aim of the study is to investigate the effect of core exercise on performance in volleyball players. In the study, the effect of core exercises performed as statically and dynamically on body composition, agility related to anaerobic strength tests and core stabilization tests in volleyball players was investigated. Thirty volleyball players participated in the study, 10 of them did volleyball exercises, the other group of 10 did volleyball and core exercises together for 2 days in a week about 30 minutes during 9 weeks. However, the remaining 10 subjects did not perform any activities as a control group. In the analysis of obtained values SPSS 25 program was used. Significant differences were found at the level of p < 0.05 in all comparisons in-group, pre, and post-tests of anthropometric measurements, body weight and body mass index. It was found that there were significant differences at the level of p < 0.05 in deadlift and doing sit-ups tests in the comparisons between the first and last measurements of all anthropometric measurements and in all measurements except in the control groups of the plank, shuttle and isometric tests. In all core tests, the measurements of the volleyball core group are statistically higher than the other two groups. In the first and last test comparisons within the group, there was a significant difference at p < 0.05 level in long jump, agility 550 and arrowhead agility tests. However, in all dynamic field tests, volleyball core increased the test time more than the volleyball and control group. On the other hand, an increase in the long jump test period of the control group is observed. While the test*group interaction is observed in the Arrowhead feature, this interaction results from the intra-group development of the volleyball core and volleyball test groups. As a result, based on the findings obtained, core exercise practices were found to improve core strength. Based on this development, it can be thought that core exercise programs will have a positive effect on the performance of volleyball athletes.
A Study on Anthropometric and Performance Responses of Calisthenic Exercise Applications
(Natl Cave Research & Protection Organization, india, 2021) Yildiz, Yagmur; Boz, Hilal Kilinc; Bayrakdar, Akan
The KE was conducted for 30 minutes 3 days a week for 12 weeks. 25 boys were included in the study. 8 of these children did CE and handball training, 8 of them only did handball training. 9 people were not included in any exercise program and formed the control group. In our study, height, body weight, waist-hip ratio, body mass index (BMI), leg lift, plank, shuttle, push-up, vertical jump, standing long jump and 10-meter speed measurements were taken. The measurements taken were taken before the CE applications started and were taken again 12 weeks after the CE applications were terminated. In the in-group test results of CE and handball groups; body weight, BMI and waist-hip were observed and a significant difference was found. As a result of the intergroup test, significant differences were found in the variables of leg lift, plank, shuttle, push-up, vertical jump, standing long jump and 10 meters speed. According to the in-group test results of CE and handball groups; leg lift, plank, shuttle, push-up, vertical jump, standing long jump and 10-meter speed showed a significant difference. As a result, it is thought that Calisthenic exercise applications would increase performance and provide positive contributions to anthropometric properties in children athlete groups.