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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

sexta-feira, 29 de julho de 2011

Reuniões do 2o semestre de 2011

Local: sala 66 da EEFE-USP

Horário: 13:30-15:20h

Cronograma
05/08 – Reunião inicial e direcionamento de atividades durante o semestre
19/08 - Participação no Simpósio dos alunos de pós-graduação da EEFE-USP (a partir das 15h)
02/09 – Defesa de mestrado do Fábio Campos. Leitura recomendada: Campos FA, Bertuzzi R, Dourado AC, Santos VG, Franchini E. Energy demands in taekwondo athletes during combat simulation. Eur J Appl Physiol. 2011 Jul 17. [Epub ahead of print]
16/09 – Apresentação de projetos de pesquisa dos candidatos do grupo ao ingresso no mestrado da EEFE (15 min cada): Diego Morine; Jonatas Ferreira da Silva Santos; Paula Avakian
30/09 – CANCELADA Apresentação do projeto de doutorado da Ursula Ferreira Julio
14/10 – CANCELADA Defesa de dissertação ou ensaio do Mário Miranda
28/10 – CANCELADA Relato de participação no International Technical Scientific Conference on Combat Sport (Itália)
04/11 – CANCELADA Defesa de dissertação ou ensaio do Juliano Schwartz
18/11 – Barbas Ioannis; Fatouros Ioannis G.; Douroudos Ioannis I.; et al. Physiological and performance adaptations of elite Greco-Roman wrestlers during a one-day tournament EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY Volume: 111 Issue: 7 Pages: 1421-1436 DOI: 10.1007/s00421-010-1761-7 Published: JUL 2011. Responsável pela apresentação do artigo: Leonardo Vidal Andreato
02/12 – Encerramento e análise de 2011

terça-feira, 26 de julho de 2011

Artigo de validação do programa desenvolvido pela Bianca

Objectivity of FRAMI-Software for Judo Match Analysis

Miarka, Bianca; Hayashida, Carlos Roberto; Julio, Ursula Ferreira; Calmet, Michel; Franchini, Emerson
International Journal of Performance Analysis in Sport, Volume 11, Number 2, August 2011 , pp. 254-266(13)


Abstract:

The use of technology can greatly improve performance analysis in sport. The purpose of this paper is to present objectivity measures from the computer software for judo matches, called FRAMI. In order to verify objectivity measures, 573 matches of two different levels of championships (regional and state matches) were taped. Next, the data was assessed through intra and inter-observer testing procedures. In inter-observer comparison, the first expert selected 10 combats in a randomized form and had analyzed 20 athletes' performances, the second expert analyzed the same 20 athletes and the third expert analyzed the same 20 athletes. After this procedure, the last expert analyzed the same sample two more times for intra-observer testing. The following groups of match variables were considered: time structure; penalties; execution, orientation and scores of attack techniques, and; gripping types. In order to verify concordance, means were compared and a quartile criteria of the confidence interval was established by φ ≥ 0.70, where concordance was classified as strong (q ≤ 30%), moderate (30% < q ≤ 60%) or weak (q > 60%). The computer program showed a strong concordance between and within the evaluators' comparisons, from a total of 42 criteria, since their replies were almost totally identical (86.11% are strong or absolute). Variables with weak classification will be grouped for better results. In conclusion, this software can clarify the understanding of technical and tactical judo match analysis with very good accuracy.

Artigo sobre aspectos fisiológicos do karate

Revista da Educação Física/UEM, Vol. 22, No 1 (2011)

Avaliação e comparação das respostas da percepção subjetiva de esforço e concentração de lactato em uma competição oficial de karate
Vinicius Milanez, Manoel Lima, Luiz Perandini, Cassio Gonçalves, Emerson Franchini
Resumo
Diversos indicadores fisiológicos podem ser usados para estimar a intensidade do esforço, tais como frequência cardíaca (FC), consumo de oxigênio (VO2), concentração de lactato ([Lac]) e percepção subjetiva de esforço (PSE). O objetivo do estudo foi avaliar e comparar as respostas da PSE e da [Lac] em uma competição oficial de caratê. Sete atletas participaram de uma competição interestadual, na qual foram mensuradas as variáveis [Lac] e a PSE mediante duas escalas, Borg 6-20 (PSE6-20) e CR-10 (PSECR-10), para estimar a intensidade do esforço. Os valores médios ± desvios padrão encontrados foram: pico de [Lac] = 7,6 ± 1,4 mM, PSE6-20 = 12 ± 3 e PSECR-10 = 3 ± 1. Foram encontradas correlação forte entre PSECR-10 e [Lac]pico (r = 0,82) e correlação moderada entre PSE6-20 e [Lac]pico (r = 0,62). Com base nos resultados observou-se que ambas as escalas apresentadas em momentos diferentes, podem ser aplicadas de maneira eficiente para mensurar o esforço realizado por caratecas durante a competição.
http://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/8058/7523

segunda-feira, 25 de julho de 2011

Densidade mineral óssea e perda de peso

J Bone Miner Metab. 2011 Jul 20. [Epub ahead of print]

Weight regulation and bone mass: a comparison between professional jockeys, elite amateur boxers, and age, gender and BMI matched controls.
Dolan E, Crabtree N, McGoldrick A, Ashley DT, McCaffrey N, Warrington GD.
School of Health and Human Performance, Dublin City University, Glasnevin, Dublin 9, Ireland, eimeardol@gmail.com.

Abstract
The aim of this study was to compare bone mass between two groups of jockeys (flat: n = 14; national hunt: n = 16); boxers (n = 14) and age, gender and BMI matched controls (n = 14). All subjects underwent dual energy X-ray absorptiometry (DXA) scanning for assessment of bone mass, with measurements made of the total body, vertebra L2-4 and femoral neck. Body composition and the relative contribution of fat and lean mass were extrapolated from the results. Data were analysed in accordance with differences in body composition, in particular, height, lean mass, fat mass and age. Both jockey groups were shown to display lower bone mass than either the boxers or control group at a number of sites including total body bone mineral density (BMD) (1.019 ± 0.06 and 1.17 ± 1.05 vs. 1.26 ± 0.01 and 1.26 ± 0.06 g cm(-2) for flat, national hunt, boxer and control, respectively), total body bone mineral content (BMC) less head, L2-4 BMD and femoral neck BMD and BMC (p < 0.05). Regression analysis revealed that lean mass and height were the primary predictors of total body BMC, although additional group-specific influences were present which reduced bone mass in the flat jockey group and enhanced it in the boxers (R (2) = 0.814). Reduced bone mass in jockeys may be a consequence of reduced energy availability in response to chronic weight restriction and could have particular implications for these athletes in light of the high risk nature of the sport. In contrast, the high intensity, high impact training associated with boxing may have conveyed an osteogenic stimulus on these athletes.

Burn out em treinadores de judô

Assunto interessante, relevante e pouco estudado...
J Occup Health. 2011 Jul 20. [Epub ahead of print]

Burnout among Judo Coaches in Turkey.
Gencay S, Gencay OA.
Department of Physical Education and Sport Teaching, School of Physical Education and Sport, Kahramanmaras Sutcu Imam University.

Abstract
Objectives: The purpose of this study was to determine the prevalence of professional burnout experienced by Turkish judo coaches and to compare possible differences in the three burnout dimensions based on coaching experience in years and satisfaction status of their sport administrators. Methods: The data were obtained by using a three-section questionnaire including a socio demographic data form and the Turkish version of the Maslach Burnout Inventory from 65 judo coaches working in the Turkish Judo and Kurash Federation. Results: In the analysis of data, descriptive statistics (mean and standard deviation) and one-way ANOVA tests were used. This study showed that judo coaches have medium level burnout experience. The results also showed that there were significant differences in the emotional exhaustion levels of judo coaches based on coaching experience in years and satisfaction status from their sport administrators. Conclusions: Burnout appears to be a problematic issue for judo coaches. When coaches begin to feel emotionally depleted, they distance themselves from athletes, and experience a reduced sense of meaning about their work; it is likely to affect the quality of the athletic experience for both the coach and the athletes.

quarta-feira, 20 de julho de 2011

Demanda energética no TKD

Eur J Appl Physiol. 2011 Jul 17. [Epub ahead of print]

Energy demands in taekwondo athletes during combat simulation.
Campos FA, Bertuzzi R, Dourado AC, Santos VG, Franchini E.
Martial Arts and Combat Sports Research Group, School of Physical Education and Sport, University of São Paulo (USP), Av. Prof. Mello de Moraes, 65, Butantã, São Paulo, SP, 05508-900, Brazil.

Abstract
The purpose of this study was to investigate energy system contributions and energy costs in combat situations. The sample consisted of 10 male taekwondo athletes (age: 21 ± 6 years old; height: 176.2 ± 5.3 cm; body mass: 67.2 ± 8.9 kg) who compete at the national or international level. To estimate the energy contributions, and total energy cost of the fights, athletes performed a simulated competition consisting of three 2 min rounds with a 1 min recovery between each round. The combats were filmed to quantify the actual time spent fighting in each round. The contribution of the aerobic (W (AER)), anaerobic alactic (W (PCR)), and anaerobic lactic [Formula: see text] energy systems was estimated through the measurement of oxygen consumption during the activity, the fast component of excess post-exercise oxygen consumption, and the change in blood lactate concentration in each round, respectively. The mean ratio of high intensity actions to moments of low intensity (steps and pauses) was ~1:7. The W (AER), W (PCR) and [Formula: see text] system contributions were estimated as 120 ± 22 kJ (66 ± 6%), 54 ± 21 kJ (30 ± 6%), 8.5 kJ (4 ± 2%), respectively. Thus, training sessions should be directed mainly to the improvement of the anaerobic alactic system (responsible by the high-intensity actions), and of the aerobic system (responsible by the recovery process between high-intensity actions).

quarta-feira, 13 de julho de 2011

Defesa de Mestrado na EEFE

Candidata: Ursula Ferreira Julio
Título da dissertação: Home-advantage no judô: estudo sobre o sistema de ranqueamento mundial
Defesa pública
Data: 25/07/2011, 14h
Local: sala 57 da EEFE-USP
Orientador e Presidente da Comissão: Emerson Franchini (EEFE-USP)
Membros da Comissão Examinadora:
Prof. Dr. Luciano Basso (EEFE-USP)
Prof. Dr. Fabrício Boscolo Del Vecchio (UFPel)
Membros Suplentes
Prof. Dr. Alexandre Moreira (EEFE-USP)
Prof. Dr. Luiz Eduardo Pinto Bastos Tourinho Dantas (EEFE-USP)
Profa. Dra. Cibele Maria Russo Noveli (ICMC-USSP)

sábado, 9 de julho de 2011

InYo é reformulado e lançado; vejam novo número

O periódico passa ser nova opção de leitura e submissão
http://ejmas.com/jalt/jaltframe.htm

Em breve o Journal of Combative Sports também será reeditado.

quinta-feira, 7 de julho de 2011

Pentatlo moderno

Int J Hist Sport. 2011;28(3-4):410-28.

Modern pentathlon and the First World War: when athletes and soldiers met to practise martial manliness.
Heck S.
University Bochum, Germany.
Abstract
In the nationalistic atmosphere of the early twentieth century, a nurturing medium for sports practising martial manliness abounded throughout Europe. This framework supported the invention of a new multi-disciplinary sport, aided by Baron Pierre de Coubertin himself: modern pentathlon. Though the idea of a new form of pentathlon was already born in 1894, it took 30 years, until Paris 1924, to establish modern pentathlon within the Olympic Games. This study is concerned with the reasons for that delay. It will be assessed whether the active military preparations around the First World War and the contemporary image of masculinity had a decisive influence on the early history of modern pentathlon. By including historical documents from the IOC archives in Lausanne, Switzerland, the research office for military history in Potsdam, Germany, and the LA84 Foundation in Los Angeles, USA, as well as literature on gender, military sport and Olympic history, this study offers an entirely new view on the early history of a sport that was born in an atmosphere of glorifying manliness and apparent militarism. The history of modern pentathlon thereby provides a particularly appropriate area for the analysis of connections between sport, militarism and masculinity. It was not by chance that the implementation of a combined sport, which included besides swimming and running the three military disciplines of shooting, fencing and horse riding, arose in a pre-war context. Though in 1912 the Great War had not yet begun, the awareness of an upcoming battle was rising and led to a higher attention to Coubertin's almost forgotten assumption of a new sport. In 1924 the advantages were finally admitted on two sides: the army recruited modern pentathletes as future military officers; the sports community appointed skilled officers as successful competitors. Thus the lobby for an Olympic recognition of modern pentathlon was found.

terça-feira, 5 de julho de 2011

RPE-sessão no TKD

Int J Sports Physiol Perform. 2011 Jun;6(2):252-263.
The Construct Validity of Session RPE During an Intensive Camp in Young Male Taekwondo Athletes.
Haddad M, Chaouachi A, Castagna C, Wong DP, Behm DG, Chamari K.
Sports Performance Optimisation, Tunisian Research Laboratory, National Center of Medicine and Science in Sports, Tunis, Tunisia.

Abstract
PURPOSE: The session rating of perceived exertion (RPE) is a practical and noninvasive method that allows a quantification of the internal training load (TL) in individual and team sports, but no study has investigated its construct validity in martial arts. Therefore, the purpose of this study was to examine the convergent validity between the session-RPE method and two objective HR-based methods for quantifying the similar TL during a high-TL camp in young Taekwondo (TKD) athletes.
METHODS: Ten young TKD athletes (mean ± SD: age, 13.1 ± 2.4 y; body mass, 46.1 ± 12.7 kg; height, 1.53 ± 0.15 m; maximum heart rate (HRmax), 201.0 ± 8.2 bpm) participated in this study. During the training period, subjects performed 35 TKD training sessions, including two formal competitions during which RPE and HR were recorded and analyzed (308 individual training sessions). Correlation analysis was used to evaluate the convergent validity between session-RPE method and the two commonly used HR-based methods for assessing TL in a variety of training modes.
RESULTS: Significant relationships were found between individual session-RPE and all the HR-based TLs (r values from 0.55 to 0.90; P < .001). Significant correlations were observed in all mode of exercises practiced in TKD.
CONCLUSIONS: This study shows that session-RPE can be considered as a valid method to assess TL in TKD.