Exercícios na borracha by Elton Fiebig

Creio que todos do judô conheçam o Elton. Aqui vocês podem acompanhá-lo demonstrando exercícios de condicionamento físico na borracha.
http://www.youtube.com/watch?v=xLUCV3llUt4

Embora não tenha conhecimento de estudos sobre esse treinamento no judô, resultados de outros estudos apontam para benefício na velocidade de execução. O resumo abaixo mostra resultados positivos na velocidade do chute no taekwondo.

The feasibility and efficacy of elastic resistance training for improving the velocity of the Olympic Taekwondo turning kick.
J Strength Cond Res. 2008 Jul;22(4):1194-7.
Jakubiak N, Saunders DH.
Strength and Conditioning Coach of The Central Taekwondo Academy, Falkirk, UK. nikosjakubiak@yahoo.com
In the Olympic sport of Taekwondo (TKD), elastic resistance training (ERT) is often used with the aim of improving kicking performance; however, the efficacy of this has never been examined experimentally. The purpose of this study was to investigate the effect of a TKD-specific, progressive ERT protocol on the velocity of the TKD turning kick. Twelve TKD athletes were randomly allocated to receive either a 4-week intervention of ERT plus usual TKD training (n = 6) or to a control group receiving 4 weeks of usual TKD training only. Kicking velocity from initiation to impact on a target was measured pre- and postintervention using a digital timer and two pressure switches. Kicking velocity improved significantly (by 7%) in the ERT group, whereas there was no improvement in the control group (p < 0.05). These data suggest that ERT is a feasible means of sport-specific resistance training for TKD and that TKD performance could benefit from an improved velocity of the attacking turning kick.

Desenvolvimento, validação e reprodutibilidade de questionário sobre perda de peso

Já está disponível um dos artigos que é resultado do mestrado do Guilherme Artioli. Nesse artigo, mostramos o processo de desenvolvimento, validação e a reprodutibilidade de questionário sobre práticas de perda de peso para atletas de judô. Um aspecto importante desse trabalho é o estabelecimento de um sistema de pontuação para quantificar a gravidade e severidade do processo de perda de peso em atletas de judô.
Outros artigos liderados pelo Guilherme virão. O próximo a sair deve ser um sobre a prevalência, métodos e magnitude da perda de peso em atletas de judô.

Development, validity and reliability of a questionnaire designed to evaluate rapid weight loss patterns in judo players.
Scand J Med Sci Sports. 2009 Sep 28. [Epub ahead of print]
Artioli G, Scagliusi F, Kashiwagura D, Franchini E, Gualano B, Junior AL.
Combat Sports and Martial Arts Research Group, Laboratory of Applied Nutrition, School of Physical Education and Sport, University of Sao Paulo, Av. Professor Mello Moraes, Cidade Universitaria, Sao Paulo - SP, Brazil.
The aim of this study was to develop a questionnaire to evaluate rapid weight loss patterns of competitive judo players and to assess its validity and reliability. We evaluated the reliability (n=94), content validity (evaluation by 10 experts), discriminant validity (differences in scores between athletes with body weight below and above their weight class; n=100) and convergent validity (correlation with Restraint Scale; n=60). No item was considered unclear or ambiguous by more than 20% of the experts. The intraclass Coefficient Correlation was above 0.90 for all questions whose answers were parametric (P<0.001; n="94)" n="94">80%; Spearman's Correlation between the Restraint Scale and the Rapid Weight Loss Questionnaire was 0.62 (P<0.001; n=60). Athletes below their weight class (n=50) had a significantly lower score compared with athletes above the weight class (n=50; P<0.001 - Mann-Whitney U test). In conclusion, the questionnaire showed good validity and reliability and could be used accurately to assess weight loss patterns of judo players.

Stress e coping em competição para jovens

Artigo interessante, incluindo atletas de judô, sobre fatores de estresse e estratégias para contorná-lo em atletas jovens participando de festival preparatório para os Jogos Olímpicos para jovens (a ser realizado no próximo ano). Embora não haja distinção do grupo de judocas em relação aos demais atletas, algumas providências sugeridas podem auxiliar treinadores e chefes de delegação a diminuir o estresse dos atletas.

Young elite athletes and social support: coping with competitive and organizational stress in "Olympic" competition.
Scand J Med Sci Sports. 2009 Sep 28. [Epub ahead of print]
Kristiansen E, Roberts GC.
Norwegian School of Sport Sciences, Oslo, Norway.
Elite adolescent sport is a relatively unexplored research field. The purpose of this investigation was to examine how the Norwegian Olympic Youth Team (N=29) experienced competitive and organizational stress during the European Youth Olympic Festival in July 2007 and how they coped with the stressors. Participants were aged 14-17 and competed in handball, track and field, swimming, and judo. We used a qualitative methodology with interviews and open-ended questionnaires. Qualitative content analyses revealed that the athletes experienced competitive stressors because of the size and importance of the competition, and organizational stressors (e.g., housing, lining up for food, and transportation) exacerbated by the extreme heat during the Festival. The elite competitive experience was novel to all and overwhelming for some of the more "inexperienced" athletes. The athletes used cognitive coping strategies to some extent in addition to relying on different types of social support. The findings revealed the need for social support for adolescent athletes, and underlined the importance of a good coach-athlete relationship in order to perform well and enjoy the competitive experience.