Browsing by Author "Franchini E."

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Analysis of video review during official judo matches: effects on referee’s decision and match results
(2021-01-01) Kons R.L.; Saldanha Da Silva Athayde M.; Ceylan B.; Franchini E.; Detanico D.
This study aimed to describe the frequency of video review (VR) used during international judo matches. The duration and time of VR occurrence and the effect of VR on subsequent referee’s decisions and match outcomes were investigated. Video recordings from the matches in which the VR was used in the 2020 Grand Slams (n = 122) were analysed. The main results showed most VR occurrences were from 1 to 2 min for female athletes (p = 0.03). Lightweight categories in both male and female groups showed the highest frequency of VR (37.3%). No significant differences were detected for VR duration and time when VR occurred considering sex and weight categories (p = 0.91, p = 0.26, respectively). A significant association was found between the type of action and the referee’s decision (p < 0.01), being score assignment the most frequent action (77.6% of male and 64.8% of female). More than 80% of the athletes (82.3% male and 78.3% female) won their matches after referees’ checking. We concluded that VR is often used at the beginning of the match mainly in the female group, mostly concerning scoring attribution, which directly affected the match result in more than 80% of the cases.
Anthropometric profile, Wingate performance and Special Judo Fitness Levels of Turkish Olympic Judo Athletes
(2018-01-01) Ceylan B.; Gurses V.; Akgul M.; Baydil B.; Franchini E.
Background. Judo is an Olympic sport where physical fitness is of great importance as well as technique and tactics. Physical and physiological conditions of the athletes are very important for a better judo performance and there is still a need for more data related to these determinants. Problem and aim. There is a need for more data concerning anthropological determinants of judo athletes. Thus, the aim of this study was to evaluate anthropometric profile, Wingate and Special Judo Fitness Test (SJFT) performance. Methods. The following tests and measurements were conducted in order to investigate anthropometric profile, Wingate and Special Judo Fitness Test (SJFT) performance of male (n=7) and female (n=10) judo athletes from Turkish Olympic judo team: anthropometric measurements, Wingate anaerobic test (WanT) and SJFT. An independent Student t test was used to compare male and female athletes. Pearson product correlation was used to verify the relationship between variables. Effect sizes were calculated following the recommendations by Rhea (2004). Results. There were differences between male and female athletes in the following variables; fat-free mass, body fat percentage, peak and mean power, HR after the set A and in the SJFT index (p < 0.05).Large and very large correlations were found between anthropometric measurements, SJFT parameters and WanT performance results (p < 0.01). Large correlation was found between fat-free mass and HR values during SJFT sets (p < 0.05). Conclusions. It can be concluded that the higher the fat percentage, the lower is the performance in activities involving body displacement. In conclusion, sex and weight differences should be taken into consideration while evaluating judo athletes and because higher fat-free mass means better SJFT performance, the training program should be organized to decrease or maintain body fat and increase muscle mass.
Ischemic preconditioning does not improve judo-specific performance but leads to better recovery in elite judo athletes
(2022-06-01) Ceylan B.; Franchini E.
Objectives: Although there are numerous studies related to effect of ischemic preconditioning on performance, there is a lack of studies demonstrating the effect of ischemic preconditioning on sport specific performance and recovery. Thus, this study aimed to demonstrate the effects of ischemic preconditioning on judo-specific performance and recovery. Equipment and methods: Ten men elite judo athletes (age = 20.0 years ± 2.2, judo experience = 9.6 years ± 1.9) voluntarily participated in this study. A controlled single-blinded crossover design was used to assess the effect of ischemic preconditioning on judo-specific performance and recovery. Athletes executed three test sessions including familiarization, ischemic preconditioning and control conditions. In each session, they executed the special judo fitness test. Heart rate was measured before, immediately after and 1, 3, 5 and 10 min, whereas blood lactate concentration was measured before and 3, 5, 10 min after the judo specific test. Oxygen saturation and blood pressure were monitored during ischemic preconditioning application. Results: No difference was found concerning the oxygen saturation during the ischemic pre-conditioning (P > 0.05). Heart rate and lactate responses in control condition were higher compared to ischemic preconditioning condition (P < 0.01). Systolic blood pressure also differed across moments of measurement during judo specific test (P < 0.01). No effect of condition was found for number of throws and index during judo specific test. Ischemic preconditioning has no impact on judo specific performance, but resulted in lower heart rate and lactate concentration, further studies are warranted to investigate effect of ischemic preconditioning on recovery in judo athletes during a competition day or following judo-specific activities.