In the United Kingdom (U.K.) in the late Victorian and early Edwardian eras there was an explosion in the popularity of the Japanese martial art jujutsu, with seemingly invincible Japanese exponents ...touring and taking on all comers in the music halls. As this early wave of popularity subsided a number of organisations were established to continue the practice of jujutsu, and other Japanese martial arts. Most notable of these was The Budokwai in London, established in 1918 by Gunji Koizumi, which from 1920 would become one of the foremost judo clubs in the West. Recent discoveries shed light on another organisation from this era called the British Ju-jitsu Society (BJS). Established in 1926, the BJS co-existed with The Budokwai and had member clubs throughout the U.K. Here, we provide an overview of the BJS, its activity, and insights into its operation and legacy.
Sumiyuki Kotani, the Kodokan Emissary to Brazil Maçaneiro, Gustavo Goulart Braga; Franchini, Emerson
International journal of the history of sport,
10/2023, Letnik:
40, Številka:
13
Journal Article
Recenzirano
In 1882, in a temple called Eishoji, Jigoro Kano unified the knowledge of ancient jujutsu schools into a system he called Kodokan Judo. At the beginning of the twentieth century, judo became popular ...outside Japan and during this period Kano traveled through several countries to propagate his method. Traveling with Kano was Sumiyuki Kotani, one of the most important names in Kodokan history. The two traveled to countries such as England, France, Germany, the United States of America, and many others. After Kano's death, Kotani continued the work, visiting regions yet unexplored. This article investigates the reasons behind Kotani's visits to Brazil and the importance of those visits to the development of judo in Brazil. Through this research, it is possible to conclude that Kotani assumed the role of charismatic and traditional authority in Brazil. He was instrumental in the spread of judo in the country, reinforcing the Kodokan tradition and connecting and updating Brazilian practitioners on Japanese judo culture and technique. He actively participated in the process of judo development in Brazil from the 1930s to the 1970s, playing an important role in the establishment of Brazil among the international players of post-war judo.
Performance in all sports requires good spatial attention. This study investigates the impact of long-term sports training on lateralization of visual spatial attention and also explores if the type ...of sport (foot orienteering (FootO) vs. judo) could be related to differentiated effects on the pattern of lateralization. Thirty practitioners of FootO (aged 16-58 years, Mean age = 24.96±10.98; 16 males), 30 judo wrestlers (aged 16-60 years, Mean age = 25.96±10.61; 19 males), and 30 subjects who have never practiced any sport (aged 15-53 years, Mean age = 33.2±11.56; 13 males), were studied with a line-bisection task. All participants were right-handed and the athletes had at least 5 years of active sport practicing. Although the mean transection in the three groups was to the left of the true center regardless of the hand used suggesting right pseudoneglect, the accuracy of both hands was highest in the group of practitioners of FootO and lowest in the non-athletes group. Also, there were no between-hands differences in the accuracy among practitioners of FootO (t(30) = 0.062, p = 0.951), slightly better right hand accuracy in judo wrestlers (t(30) = 0.608, p = 0.548), and significantly better right hand accuracy in non-athletes (t(30) = -2.297, p = 0.029). In general, the results suggest that the active long-term training of any sport may affects functional brain organization of visual spatial attention towards its more balanced hemispheric presentation, but the type of sport is of great importance for the magnitude of the induced changes.
Purpose:
The main aim of the research was to analyse aggression dimensions among athletes practising martial arts and combat sports.
Material and Methods:
There were 219 respondents. The Buss and ...Perry Aggression Questionnaire (BPAQ) in the Polish adaptation by Siekierka was applied.
Results:
Martial arts apprentices turned out to present a statistically significantly lower level of hostility (
p
< 0.001) and of the general aggression index (
p
= 0.04) than combat sports athletes. It turned out that lower level of aggression was noted in female participants (physical aggression (
p
< 0.001), verbal aggression (
p
= 0.004), hostility (
p
< 0.001), and the general aggression index (
p
< 0.001). Analysis revealed that the training experience and the training rank did not differentiated the level of the respondents' particular aggression dimensions.
Conclusions:
It would be advisable to perform parallel analyses in other areas of Poland and take into account the respondents' education and place of residence.
Most para-sports group athletes into "classes" to compete against others with similar activity limitations. Judokas with vision impairment (VI) instead all compete in the same class irrespective of ...their level of impairment. There is considerable controversy whether this approach represents a legitimate way to structure judo competition. The aim of this study was to establish expert opinion on the requirements for an evidence-based classification system for VI judo.
A panel of 18 athletes, coaches, and administrators participated in a three-round Delphi review process. Expert opinions were canvased for a large range of issues related to classification in judo. Between rounds, results were summarized and further questions were asked on topics where consensus was not reached across experts.
The panel expressed that: (i) blind and partially sighted athletes should not compete against each other in the same class; (ii) additional measures of visual function might be needed to accurately evaluate an athlete's impairment; (iii) the minimum impairment criteria (MIC) should represent a more severe level of impairment to ensure that all those included possess a level of VI that indeed decreases performance in judo; and (iv) legitimate competition could be undermined by some athletes intentionally underperforming on classification tests. The panel identified six additional measures of visual function which are not currently measured but are likely to impact judo performance, and six aspects of judo performance which are most likely impacted by VI.
Experts in the field of VI judo expressed a need to change the manner in which VI judokas are classified. This study outlines a model for establishing the impairment-performance relationship and guides the development of evidence-based classification for VI judo.
O artigo tem como objetivo analisar, por meio dos discursos de professores de judô que trabalham com crianças, como eles conduzem as suas práticas de ensino com o público infantil. Trata-se de um ...estudo descritivo-interpretativo realizado com 33 professores do estado do Espírito Santo. Os dados foram produzidos por meio de questionário enviado pelo Google Forms. Os resultados indicam que os professores enfatizam os aspectos axiológicos, técnicos e o desenvolvimento motor em seus processos de ensino, que apontam para uma concepção universal de infância. Embora utilizem os jogos e as brincadeiras em suas aulas, os discursos sugerem uma apropriação instrumental dessas manifestações lúdicas, com pouco espaço para que as crianças tenham as suas subjetividades, agências e práticas autorais reconhecidas e valorizadas.
RESUMO O objetivo do estudo foi analisar o projeto de judô Kimono de Ouro nos anos de 2011 a 2017, a partir de recursos fomentados pela Lei de Incentivo ao Esporte e da aplicação do modelo de ...políticas nacionais de esporte de rendimento. A metodologia de abordagem qualitativa e descritiva foi delineada pela análise documental e pelo modelo de Sports Policy Factors Leading to International Sporting Success. Na perspectiva do rendimento esportivo, os resultados revelaram que a Lei de Incentivo ao Esporte potencializou o desenvolvimento do projeto ao evidenciar correlações significativas com o Sports Policy Factors Leading to International Sporting Success. Conclui-se que a captação de recursos, a gestão financeira e a qualificação da equipe multiprofissional foram fundamentais para a evolução do desempenho esportivo.
In this paper the effectiveness of the support system which predicts the risk of the repetitive brain concussion is studied biomechanically. In the risk prediction system, the accident that caused ...the concussion is reconstructed by analyzing the game video via multibody dynamics and the resulting brain injury is calculated in detail by the finite element method. In order to calculate the aggravation of the brain injury by the repeated brain concussion, the following two methods are examined. In the first method, the material properties of the part of the brain damaged by the1st impact are changed in the simulation of the 2nd impact. In the second method, each brain damage caused by the repeated impacts is accumulated. The system was applied to the real-life accidents that occurred during Judo and American football games. As a result of the simulations, the aggravation of the brain damage due to repetitive concussion was determined numerically in terms of the maximum strain of the brain and the brain damage rate of the whole brain. The biomechanical process of the collision accidents and the resulting brain damage were reconstructed based on the video and the results are effective to prevent the future repeated concussion accidents. J. Med. Invest. 70 : 213-220, February, 2023
This study aimed to explore the profile of athletes with a vision impairment who compete in three Paralympic sports (goalball, vision impairment judo, and blind football).
Descriptive and association ...analyses of the vision impairment athletes' profile were conducted.
The typical athlete profile was a male (65.1%), aged 26-34 yrs (39.7%), from Europe (38.8%), representing a country with a high income (46.1%), and was diagnosed with a retinal-related ocular pathology (38.9%). In all three sports, the ages of the athletes were similar. In goalball, most athletes were from Europe, represented countries with a high income, and were diagnosed with retinal-, globe-, or neurological-related pathologies. In vision impairment judo, the majority of athletes were from Asia, represented countries with an upper middle income, and were diagnosed with retinal-, global-, or neurological-related pathologies. In blind football, most athletes were from Europe, represented countries with an upper middle income, and were diagnosed with retinal-, neurological-related ocular pathologies, or glaucoma.
The homogeneity of the athletes' profile suggests that an effort is needed to target other parts of the vision impairment population to take part in vision impairment sports. Differences in the athletes' profiles across the sports provide information that may be useful for sport-specific talent identification.
To investigate the distribution of bone density in the subchondral bone tissue of the knee joint due to the mechanical stress load generated by judo, the bone tissue volume of different densities and ...the bone remodeling characteristics of the subchondral bone of the knee joint.
CT imaging data of the knee joint were collected from 15 healthy individuals as controls and 15 elite judo athletes. Firstly, they were processed by the CTOAM technique, and secondly, the distribution pattern of high-density areas of the knee joint was localized using nine anatomical regions. In addition, three tomographic images were selected in the sagittal, coronal, and axial 2D image windows to observe the distribution of different densities of bone tissue. Finally, the percentage of bone tissue volume (%BTV) and bone remodeling trend of bone tissues with different densities were determined.
In this study, high-density areas were found in the 4th, 5th, and 6th regions of the articular surface of the distal femur and the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th and 8th regions of the tibial plateau in judo athletes; the distribution of high-density areas on the articular surface of the distal femur in control subjects was similar with judo athletes, and high-density areas were mainly found in the 4th and 5th regions of the tibial plateau. The %BTV of low (401-500HU in the distal femur; 301-400 HU and 401-500HU in the tibial plateau), moderate, and high bone density was higher in judo athletes than in controls in the subchondral bone of the distal femur and tibial plateau (P< 0.05).
The history of compressive stresses, struck stresses, soft tissue tension and pull, self-gravity and intra-articular stress loading generated by the lower limb exercise technique of judo leads to specific forms of stress distribution and bone tissue remodeling in the subchondral bone tissue within the distal femur and tibia plateau.
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