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http://grupodestudoslutas.blogspot.com

Seguidores

Quem sou eu

São Paulo, São Paulo, Brazil
Professor da EEFE-USP; Praticante e Pesquisador de Judô; Preparador físico de atletas de modalidades esportivas de combate.

Arquivo do blog

segunda-feira, 28 de maio de 2012

quarta-feira, 23 de maio de 2012

Material para a próxima avaliação de judô I da EEFE-USP

https://docs.google.com/open?id=0B6F18t_8Glc7TmtFeFN1d2hTWTA

https://docs.google.com/open?id=0B6F18t_8Glc7M1ZwbkRyc18xcTg

O material sobre perda de peso será tema da próxima avaliação.

Projeções da palestra em Vinhedo


https://docs.google.com/open?id=0B6F18t_8Glc7eVBBSHRad0t0YVk

Técnica e tática em atletas pré-adolescentes de TKD


J Strength Cond Res. 2012 Jun;26(6):1489-95.

Technical and tactical analysis of youth taekwondo performance.

Source

1Department of Human Movement and Sport Sciences, University of Rome "Foro Italico," Rome, Italy 2Department of Clinical and Experimental Medicine, University of Magna Graecia, Catanzaro, Italy 3Italian Taekwondo Federation, Rome, Italy.

Abstract

ABSTRACT: Casolino, E, Lupo, C, Cortis, C, Chiodo, S, Minganti, C, Capranica, L, and Tessitore, A. Technical and tactical analysis of youthtaekwondo performance. J Strength Cond Res 26(6): 1489-1495, 2012-This study aimed to analyze the technical and tactical aspects of young athletes during official taekwondo competitions. Fifty-nine youth taekwondo athletes (43 boys and 16 girls; age range: 10-12 years; weight category range: <24 to >59 kg) with at least 2 years of taekwondo training consisting of three 90-minute training sessions for 3 d·wk participated in this study. Thirty-seven matches (three 1-minute rounds, with 1-minute rest in between) were analyzed to verify the differences (p ≤ 0.05) in offensive and defensive actions in relation to gender (male, female), match outcome (winners, nonwinners), kicking leg (front, rear), and round (first, second, third). No difference emerged for gender and match outcome. With respect to defensive actions (8.4 ± 12.0%), youth athletes engaged more frequently (p < 0.0001) in offensive actions (91.6 ± 12.0%), which showed a significant decrease (p < 0.016) from the first round (42.3 ± 21.8%) to the second (33.1 ± 14.8%) and third (24.5 ± 16.0%) ones. Kicks performed with the rear leg (94.4 ± 7.8%) occurred more frequently (p < 0.0001) than those performed with the front leg (5.6 ± 7.8%). In considering that a high level of coordination is required to perform front-leg kicks and defensive actions necessitate a high level of tactical skills, these findings might indicate a not-yet complete attainment of fundamental coordinative capabilities in 10- to 12-year-old athletes, independently of match outcome. To enhance coordination capabilities in youth athletes, coaches are recommended to structure their training including skill-ability and sport-ability drills.

Pesquisa qualitativa sobre perda de peso entre atletas de luta


Appetite. 2012 May 16. [Epub ahead of print]

The Food and Weight Combat: A Problematic Fight for the Elite Combat Sports Athlete.

Source

Department of Food and Nutrition, and Sport Science, University of Gothenburg, Göteborg, Sweden.

Abstract

Weight reduction in athletes is motivated by optimisation of performance, aesthetic reasons or to achieve a pre-designated weight. Previous research has shown that dietary restraint and short term weight regulation frequently takes place among combat sports athletes such as wrestlers and judokas. The aim of this study was to explore negative experiences related to dietary strategies and weight-making practises used by elite combat sports athletes. Using semi-structured interviews, 14 Swedish national team athletes in wrestlingjudo and taekwondo were asked about their dietary intake and their engagement in both long- and short-term weight regulation practises. Content analysis of the transcribed interviews, display a constant struggle regarding nutritional standpoints. Sport demands such as achieving an optimal weight and nutritional intake were considered as central in order for excellent performance. Adhering to these demands was found to be problematic however, primarily because of; (1) negative physiological responses, and (2) opposing ideals of a non-sport related nature, such as the importance of the athletes to be healthy and social in their everyday lives.

segunda-feira, 21 de maio de 2012

Artigo sobre estado da arte das pesquisas em Modalidades Esportivas de Combate

Esse é o link para o artigo escrito por mim e pelo Fabrício. Para quem é do nosso grupo, é leitura obrigatória, não só o artigo, mas também as referências citadas no artigo : )
http://www.scielo.br/pdf/rbefe/v25nspe/08.pdf

sexta-feira, 18 de maio de 2012

Estrutura temporal no TKD (13-14 anos)

J Strength Cond Res. 2012 May 15. [Epub ahead of print]


Time Motion Analysis of Youth Olympic Taekwondo Combats.

Francesco T, Laura C, Salvatore C, Carlo M, Antonio T.

1Department of Human Movement and Sport Sciences, University of Rome "Foro Italico", Italy 2Italian Taekwondo Federation, Rome, Italy 3Department of Clinical and Experimental Medicine, University of Magna Graecia, Catanzaro, Italy Mailing address: Antonio Tessitore, University of Rome "Foro Italico", P.za L. De Bosis, 15, 00135 Rome, Italy, Phone: Int+39 0636733250, Fax: Int+39 0636733330. E-Mail: antonio.tessitore@uniroma4.it.

Abstract
ABSTRACT:: This study aimed to analyze the time-motion structure of combat phases (fighting: F; non-fighting: NF; and stoppage; ST) during semi-final and final matches (three 1.5-min rounds, with 1-min rest in between) of the 2010 Italian Taekwondo Cadet (age 13-14 years) Championship (males, n=40; females, n=28) in relation to gender (males and females) and grouped weight division (light, middle, and heavy) of athletes. Regardless of gender, grouped weight division, round, and tournament stage, differences (p<0.001, ES range: 1.92-3.02) emerged for frequency of occurrence of combat phases (F: 42.4 ± 0.5%; NF: 44.5 ± 0.7%; ST: 13.1 ± 0.9%) and their mean duration (F: 2.8 ± 1.0 s; NF: 6.5 ± 1.8 s; ST: 13.7 ± 5.0 s). A 1:2 F to NF ratio was found, whereas a 1:3 ratio emerged when F was considered in relation to the sum of NF and ST. During F, 5±1 tactical movements and 4±1 technical exchanges were performed, lasting 0.6±0.1s and 0.7±0.1s, respectively. These findings mirrored the intermittent nature of youth combat, characterized by a high occurrence of tactical movements and technical exchanges during F. The lack of differences for round and tournament stages indicates a limited tactical capability of young athletes in adopting specific match strategies, independently from gender and weight divisions of the athletes. To prepare young athletes to handle the technical-tactical demands of the match, coaches could include 7-9 circuit stations of specific TKD sequences of attack and counter attack techniques.

quinta-feira, 17 de maio de 2012

Artigo sobre o ko-uchi-gari


A technical-pedagogical and historical reflection on the
conceptual and biomechanical properties of Ko¯do¯kan
ju¯ do¯’s “ko-uchi-gari” [minor inner reaping throw]
Carl De Crée and David A. Edmonds
Department of Medicine and Surgery
University of Rome “Tor Vergata”
International Association of Judo Researchers, United Kingdom
Abstract
Throwing techniques represent an important part of Kōdōkan jūdō, aimed at defeating an opponent. Ko-uchi-gari [minor inner reaping throw] is a versatile throw of which the exact origin is unknown. Clear and correct jūdō-specific and didactic terminology are helpful in acquiring the complex motor skills that enable a refined and highly technical jūdō. Ko-uchi-gari relies on the physics principle of a “simple couple,” i.e., an acting pair of two bound opposing forces around the opponent’s center of mass with the result, in this case, being perpendicular to those forces, hence producing a torque. Appreciating this may provide an idea about the method this throwing technique is relying on to achieve its success and about its challenges. The purpose of the present paper is to improve the understanding of ko-uchi-gari from a historical, terminological, linguistic, technical, and biomechanical perspective in order to facilitate transferring or acquiring the motor skills necessary to properly master and teach this jūdō throwing technique.

quarta-feira, 16 de maio de 2012

Anúncio da equipe japonesa de judô


http://www.youtube.com/watch?feature=player_embedded&v=uptnWd6J2ro

Atenção à ausência de expressão dos atletas e ao fato de vários atletas em posição pior no ranking da FIJ terem sido selecionados.