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).

Crianças e muay thai

Dica do Fabrício:
http://uolesporte.blogosfera.uol.com.br/2011/07/12/luta-de-muay-thai-entre-criancas-causa-polemica-na-australia/

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)

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.

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.

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.

Sobre apresentações

É longo, mas vale a pena.
Quem não tem tempo, recomendo ver os três últimos minutos.
http://www.youtube.com/watch?feature=player_embedded&v=dH2DmQZpn5c#t=41s