Informe sobre el 6th European Judo Science & Research symposium & 5th Scientific and Professional Conference - “Applicable Research in Judo"

[ES] El presente informe describe el 6th European Judo Science & Research Symposium & 5th Scientific and Professional Conference - “Applicable Research in Judo”, celebrado en Porec, Croacia, del 12 al 14 de junio de 2019. La conferencia, de tres días de duración, tuvo tres ponencias principales el primer día, 12 presentaciones el segundo, estructuradas en dos secciones y, por último, una mesa redonda que cerró el tercer día del programa. Se publicó el libro de actas de la conferencia, el cual incluye un total de 17 trabajos. Aunque la organización de la conferencia fue impecable, la pregunta a resolver siendo cómo involucrar más a los entrenadores en el evento y, aún más, estimular su interés en la ciencia del judo y que puedan reconocer lo que las ciencias del deporte esta podrían aportar a sus atletas y procesos de entrenamiento.[EN] This report describes the 6th European Judo Science & Research Symposium & 5th Scientific and Professional Conference - “Applicable Research in Judo,” held in Poreč, Croatia, on June 12-14, 2019. The three-days conference included three keynote speakers on the first day which were followed by 12 presentations in two sections on the second day and a round table that closed the third and final day of the program. Proceedings book of the conference was published, which includes 17 papers. Although the conference organization was impeccable, the question remains how to further involve coaches in the conference and even more ignite their interest in science in judo to recognize the advantages that sports science could bring to their athletes and training processes.[PT] O presente resumo descreve o “6th European Judo Science & Research Symposium” & “5th Scientific and Professional Conference – “Applicable Research in Judo’”, organizado em Porec, Croácia, de 12 a 14 de junho de 2019. A conferência, que teve a duração de três dias, teve três ponencias principais no primeiro dia, 12 apresentações, divididas em dois secções, no segundo, e, por último, uma mesa-redonda que encerrou o terceiro dia do programa. Publicou-se um livro de atas da conferência, com 17 trabalhos. Embora o desenvolviment da conferência foi óptimo, algumas respostas ficaram em aberto: como envolver mais os treinadores no evento, e como estimular seu interesse na ciência do judopara reconhecer as vantagens que a ciência do esporte poderia trazer para seus atletas e processos de treinamento

The benefits of Functional Movement Screen in judo

[EN] With the development of screening methods, simple screening tools could commonly be used to assess movement quality in real-world conditions. One of those methods is the functional movement screen (FMS), that was developed to helps determine the fundamental movement patterns of an individual. FMS test was administered to 9 elite judokas aged 22 ± 4.24 years, height 176.44 ± 7.44 and weight 79.44 ± 15.92 kg. The overall FMS score was 17.56 ± 1.59. No significant asymmetries were noted in the bilateral test. The lowest score was achieved in shoulder mobility 1.89 ± 0.6 which represent and issue that needs to be addressed to prevent the occurrence of injuries. Overall the FMS testing could be a beneficial tool to strength and conditioning coaches in judo, especially in the preseason to assess the functional movement status of judo athletes and to address any issues that could be identified. It represents a fast and affordable screening tool, but it needs to be administered by a qualified assessor. The data of this study could serve as a reference score to other FMS research in judo or other combat sports or martial arts

Report on the 7th European Judo Science & Research Symposium & 6th Scientific and Professional Conference - Applicable research in judo

© 2023 Universidad de León. www.unileon.es. This work is licensed under a Creative Commons Attribution-Non Commercial-Share Alike 4.0 International License. https://creativecommons.org/licenses/by-nc-sa/4.0/This report describes the 7thEuropean Judo Science & Research Symposium & 6thScientific and Professional Conference - "Applicable research in judo" held in Poreč, Croatia on June 19-20, 2023. The two-day conference included three keynote speakers on the first day and 20 oral presentations divided into two sections. The second day included fourpractical sessions, which closed the program. The conference proceedings book was published, which includes 24 papers. The conference was again impeccably organised and had an outstanding return after the Covid-19 interruption, with many exciting topics presented by researchers and judo practitioners. Additionally, slightly more judo coaches and ex-athletes joined the conference, bringing us one step closer to tightening the gap between judo science and coachingPeer reviewe

Youth Judokas Competing in Higher Age Groups Leads to a Short-Term Success

© 2022 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).Coaches of youth judo athletes might be under the influence of some extraordinary elite judo athletes that have won elite competitions at a relatively young age and might put youth athletes under pressure to gain as much fighting experience as fast as possible. The present study aims to present a 5-year competition structure, volume and age competition categories (ACC) range in which youth judokas competed with 10-year dropout status. Data from 46 judokas were collected (M = 24; F = 22) for four categorisation classes (National-NC; Perspective-PC; International-IC; World class-WC). Competitive structure, volume, performance and number of ACC were collected from 2009 to 2013 for all age groups from scores and standings records of the National Federation. Youth judokas competed in 8 (±2) competitions per year and also competed in 3 (±1) ACC. Abroad competitions affect the fighting experience and competitive success (CS). CS showed positive correlations with the number of ACC in the year 2009 (p = 0.01), 2010 (p = 0.01) and 2011 (p = 0.04). The final observed years’ CS 2012 (p = 0.009) and 2013 (p = 0.002) showed a negative association with the number of ACC. CS in the final observed year 2013 showed a positive association (p = 0.012) with the dropout status in 2018 and a negative one with the number of abroad competitions in 2013 (p = 0.029). In total, 52% dropout was noted in 10 years. This ‘’playing-up’’ approach was shown to be successful in creating youth medalists. However, just in the short term, if implemented for too long, it starts to affect competition success negatively and increases youth athletes’ dropout. Therefore, coaches should include more competitions abroad in competitors’ primary age group, while training sessions could be done with higher age groups which would allow for gathering additional experience in a more controlled environment in their yearly periodisation.Peer reviewe

The effect of time of day on Special Judo Fitness Test in active judokas: Evaluation in terms of chronotype

© 2023 The Author(s). Published with license by Taylor & Francis Group, LLC. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY), https://creativecommons.org/licenses/by/4.0/The present cross-sectional study aims to examine the effect of time of day on the judo-specific performance in judokas, considering their chronotypes. Twenty-four male judokas participated in the study where the Morningness-Eveningness Questionnaire was administered, and on it, they were divided into morning-type (MT:12-judokas) and evening-type groups (ET:12-judokas). Afterwards, the Special Judo Fitness Test (SJFT) was applied to both groups at three different times (morning: 09:00 h, afternoon: 13:00 h and evening: 17:00 h) with body temperature measured before and after every SJFT performance. As a result, the Group*Test Time interaction significantly affected overall throwing performance during SJFT [F(2,44) = 29.437, p = 0.001, η2p: .572]. Furthermore, a significant time effect was found for the SJFT index [F(2,44) = 5.118, p = 0.010, η2p: .189] and for the Group*Test Time interaction with the mean value of the index [F(2,44) = 24.424, p < 0.001, η2p: .526]. Furthermore, body temperature had a significant time effect [F(2,44) = 301.454, p < 0.001, η2p: .932] and the Group*Test Time interaction [F(2,44) = 5.802, p = 0.006, η2p: .209]. In conclusion, coaches and exercise experts should consider judo athletes’ chronotype when planning special training programs to improve judo-specific anaerobic capacity. Furthermore, to minimize the impact of time of day and chronotype on athletes’ performance in competitions, it is recommended that MT athletes develop their judo-specific anaerobic capacity in the evening hours, when their performance is lower, while ET athletes should do so in the morning hours when their performance is lower via randori training.Peer reviewe

Comparison of Individual Penalties According to Gender and Weight Categories of Elite Judo Athletes from Four World Championships

© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).Background: This research aimed to compare individual penalties by gender and weight categories in judo from the Judo World Championships (WC): Budapest—2017, Baku—2018, Tokyo—2019 and Budapest—2021 in all individual weight categories for females and males. Methods: Data were collected by notational analysis of 2041 penalty videos for females and 3473 penalty videos for males (total n = 5514). All individual penalties—Shido 1, 2, 3 and Hansoku Make (direct disqualification) were analysed by the Pearson chi-square test at the level of statistical significance of 5%. Results: Significant differences were noted in the assigned individual penalties between individual categories (p < 0.001) in both genders. The significant difference was contributed mainly by the weight category +78 kg with penalties Non-combativity (5.3) and Avoid Grip (−3.4) in females, while in males it impacted by the +100 kg weight category and the Non-combativity (4.2) and Avoid Grip (−4.0) penalties. For females, the most dominant individual penalties were Non-combativity (41.6%), Avoid Grip (16.2%) and False Attack (15.0%), and were Non-combativity (40.3%), Avoid Grip (19.5%) and False Attack (16.4%) for males. The largest number of penalties in females were in −52 kg (16.7%), −57 kg (15.9%) and +78 kg (15.2%) categories, while in males, they were −66 kg (17.2%), −73 kg (16.1%) and −90 kg (15.6%). Conclusions: The findings of this study highlight the leading penalties in all weight categories for both genders on WC to be Non-combativity, Avoid Grip and False Attack. Additionally, a new trend in heavyweight athletes with a lower number of penalties is noted. The obtained results indicate the need to pay more attention to working with competitors of all ages and genders on education to implement tactical variants, forms and means to use penalties to athletes’ advantage, especially after a possible rule change and to lower the occurrence of injuries.Peer reviewe

Habit or lack of education? Hypohydration is present in elite senior judo athletes even during a weight-stable training camp

© The Author(s) 2022. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1177/1747954122112243It has been well-documented that high-level judo athletes presented a high level of hypohydration during weight-cutting and competition periods. However, there is a lack of studies investigating the hydration status of high-level judo athletes during a weight-stable training period. Therefore, this study aimed to investigate elite judo athletes? hydration status, body mass change, and fluid intake during a weight-stable training camp. Twenty-seven judo athletes (women n?=?8, men n?=?19, body weight?=?79.6?±?20.9?kg) from the senior national judo team voluntarily participated in this study. Data were collected in the morning after waking up and before and after the morning and evening training sessions. On the second day, the measurements were taken again in the morning after waking up. Urine-specific gravity (USG) was classified as hydrated (USG ?.05). Most of the elite judo athletes presented hypohydration (92.6%). The relationship between the fluid intake of the athletes and the changes in USG and body weight values during 24?h was not significant (p?>?.05). The current study?s findings revealed that high-level judo athletes present a high level of hypohydration even during a weight-stable training camp. Furthermore, the training sessions during the experiment period (24?h) worsened the hydration status of the senior athletes in all weight categories for both women and men.Peer reviewe

The Effect of Height on Drop Jumps in Relation to Somatic Parameters and Landing Kinetics

selected somatic parameters on the landing kinetics of rebound jumps in force and power production, performed by male and female student athletes. Twenty female and forty male students with a sports background participated in the experiment (mean and standard deviation (± SD): age 20.28 ± 1.31 years, height 166.78 ± 5.29 cm, mass 62.23 ± 7.21 kg and 21.18 ± 1.29, 182.18 ± 6.43, 78.65 ± 7.09). Each participant performed three maximal jumps on two independent and synchronized force platforms (Bilateral Tensiometric Platform S2P) at each of the two assigned drop-jump heights (20-, and 40-, cm for female and 30-, and 60-, cm for the male special platform). Significant between-sex differences were observed in all variables of selected somatics, with men outperforming women. Statistically significant differences were noted in four parameters, between men and women, in both DJs from 20/40 and 30/60 cm. The height of the jump was 6 cm and 4 cm higher for men. A slightly higher statistical significance (p = 0.011) was demonstrated by the relative strength (% BW) generated by the left limb in both men and women. Only women showed a significant relationship between body mass, body height, and five parameters, dropping off of a 20 cm box. In men, only the left leg—relative maximal F (p =−0.45)—showed a relationship with body mass. There were no relationships between the above-mentioned dependencies in both groups, in jumps from a higher height: 40 cm and 60 cm. From a practical application, the DJ with lower 20/30 cm or higher 40/60 cm (women/men) respectively emphasizes either the force or power output via an increase in the velocity component of the rebound action or increased height of the DJ jump