Browsing by Author "Ceylan, B, Balci, SS"

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Comparison of physiological and perceptual load between uke and tori after intermittent osaekomi-waza exercise in judo
(2022-01-01) Ceylan B., Balci Ş.S.; Ceylan, B, Balci, SS
This study investigated differences in physiological and perceptual responses between uke and tori during intermittent osaekomi-waza exercise. Twenty-one male judo athletes voluntarily participated in this study. Following anthropometric measurements and 1 min uchi-komi test, athletes executed 20 s × 6 sets (1:½ work rest ratio) intermittent osaekomi-waza exercise with kesa-gatame as both uke and tori. Athletes’ heart rate and lactate concentration were monitored at rest, 1 min, and 6 min following the exercise while the athletes classified the rate of perceived exertion just after the exercise. During the experiment, the changes in heart rate were different between positions with higher values in uke position compared to tori position after the intermittent exercise (F2,40 = 4.28, p = 0.03). Moreover, athletes in the uke position stated a higher rating of perceived exertion than athletes in the tori position (p = 0.01). However, blood lactate responses were found to be similar between positions (p > 0.05). Intermittent osaekomi-waza exercises resulted in similar metabolic load for uke and tori positions, while higher cardiovascular load was observed in the uke position compared to the tori position. Thus, it can be concluded that the athletes in uke position are exposed to more cardiovascular load compared to those in tori position and present higher perceptual responses.
Dehydration and Rapid Weight Gain Between Weigh-in and Competition in Judo Athletes: The Differences between Women and Men.
(2021-10-25T00:00:00Z) Ceylan, Bayram, Balci, Sukru Serdar; Ceylan, B, Balci, SS
This study aimed to investigate the sex differences in short-term weight change and hydration status in judo athletes. Thirty-five men and 15 women judo athletes voluntarily participated in this descriptive and repeated measures design study. Body mass, urine-specific gravity (USG), and body composition of the athletes were measured at the official weigh-in and the competition day's morning. Body mass of the athletes increased during recovery time between official weigh-in and before the competition (time factor; F = 71.81, p < 0.001), this increase was higher in men athletes compared to women athletes (time-sex interaction; F = 6.56, p = 0.01). With RWG, USG values of the women and men athletes decreased (time factor; F = 8.53, p = 0.005). However, most of the athletes were still in significant or serious dehydration state. Unchanged values of total body water rates (TBW) supported dehydration in athletes before the competition (time factor, F = 2.9, p = 0.091; time-sex interaction; F= 2.4, p = 0.122). The findings of the study indicated that RWG was higher in men athletes compared to women athletes, but hydration status was not affected by sex factor.Notwithstanding 15 hours of recovery between official weigh-in and the start of the competition, judo athletes were still in dehydrated state despite remaining within the limit set for RWG.
The comparison of judo-specific tests
(2018-01-01) Ceylan B., Balci S.S.; Ceylan, B, Balci, SS
Background. There are some judo-specific performance tests developed in recent years. It has been reported that these tests present the same physiological results as aerobic and anaerobic power measurements carried out in laboratories. Measurements carried out by using judo-specific exercises are important to control the development of the training. Problem and aim. The aim of this study was to determine whether 3 different judo-specific tests could discriminate judo athletes from different levels and present the same physiological results as simulated judo match. Methods. Eight male judo athletes who have competed in international competitions in the recent year and 7 male judo athletes who have competed in national competitions in the recent year voluntarily participated in this study. During the selection process, some criteria such as at least 4-year judo background, attending trainings regularly and no injuries in the recent year which adversely affected athletes' training program were taken into consideration. Athletes carried out 4 different practices (tests): Special Judo Fitness Test (SJFT), Uchikomi Fitness Test (UFT), Santos Test (ST) and Simulated Judo Match (SJM). Tests were carried out randomly at the same time of the day with at least 2, at most 3 days intervals. Rest values of hearth rate (HR) and lactate (LA) were measured before tests and at 1st, 5th, 10th, 15th, 30th minutes of the recovery period. Paired comparisons of the variables were tested with independent sample t-test, changes in HR and LA values in both groups were tested with the three-factor mixed-design analysis of variance with repeated measurement. Results. Elite and non-elite athletes were found to have the same physical characteristics except body fat percentage. Time of measurement (F = 187.57) and tests (F = 21.05) significantly affected the level of lactate (p < 0.05), the interaction effect between test and time factors was also found significant (F = 8.80; p < 0.05). Contrarily, changes of the lactate concentration during the tests were similar in elite and non-elite judo athletes (F = 0.82; p < 0.05). Conclusion. Despite similar changes in HR and LA only SJFT and ST discriminated elite and non-elite judo athletes in terms of number of throws and test-specific evaluations while UFT did not discriminate the levels of the athletes.