Para reflexão

O problema era a "pegada na perna". Fizeram as restrições e o percentual de ippon despencou. Com certeza é muito mais bonito verem as lutas terminarem com duas punições a uma do que ver alguém ser projetado de tê-guruma : )
Agora fizeram uma reunião de uma tarde e mudaram de novo as regras.
Como a charge indica, tem sempre algo atrás das mudanças, que muitas vezes não passam pela melhoria do judô (nem para quem assiste e muito menos para quem luta).

Análise técnica e tática e respostas fisiológicas ao boxe

Int J Sports Physiol Perform. 2013 Jan;8(1):84-91.

Amateur boxing: activity profile of winners and losers.

Davis P, Wittekind A, Beneke R.

Source

Centre for Sport and Exercise Science, University of Essex, Essex, UK.

Abstract

An activity profile of competitive 3 × 2-min novice-level amateur boxing was created based on video footage and postbout blood [La] in 32 male boxers (mean ± SD) age 19.3 ± 1.4 y, body mass 62.6 ± 4.1 kg. Winners landed 18 ± 11 more punches than losers by applying more lead-hand punches in round 1 (34.2 ± 10.9 vs 26.5 ± 9.4), total punches to the head (121.3 ± 10.2 vs 96.0 ± 9.8), and block and counterpunch combinations (2.8 ± 1.1 vs. 0.1 ± 0.2) over all 3 rounds and punching combinations (44.3 ± 6.4 vs 28.8 ± 6.7) in rounds 1 and 3 (all P < .05). In 16 boxers, peak postbout blood [La] was 11.8 ± 1.6 mmol/L irrespective of winning or losing. The results suggest that landing punches requires the ability to maintain a high frequency of attacking movements, in particular the lead-hand straight punch to the head together with punching combinations. Defensive movements must initiate a counterattack. Postbout blood [La] suggests that boxers must be able to tolerate a lactate production rate of 1.8 mmol · L-1 · min-1 and maintain skillful techniques at a sufficient activity rate.

Kung fu e obesidade em crianças e adolescentes

Res Sports Med. 2013 Jan;21(1):37-51. doi: 10.1080/15438627.2012.738444.

Self-perception and attitude toward physical activity in overweight/obese adolescents: the "martial fitness" study.

Tsang TW, Kohn MR, Chow CM, Singh MF.

Source

a Exercise, Health & Performance Faculty Research Group, Faculty of Health Science , The University of Sydney , Sydney , Australia.

Abstract

This randomized, placebo-exercise controlled trial found that 6-months of Kung Fu training improved enjoyment of physical activity more than the placebo-exercise intervention, while both groups improved perceptions of behavioral conduct and changed strategies for physical activity. Importantly, family support for physical activity declined in subjects who had more visits to health care professionals, which is worrisome, as this represents another risk factor for sedentary behavior in this vulnerable cohort that must be overcome for successful, sustained behavioral change. Programs supporting positive attitudes of both adolescents and their families toward physical activity will be necessary to optimize exercise adoption and adherence as a means to combat the obesity epidemic in childhood and adolescence.

Protocolos de exercício no TKD e luta em competição

Int J Sports Med. 2013 Jan 7. [Epub ahead of print]

Taekwondo Exercise Protocols do not Recreate the Physiological Responses of Championship Combat.

Bridge CA, McNaughton LR, Close GL, Drust B.

Source

Sport and Exercise Research Group, Edge Hill University, Ormskirk, United Kingdom.

Abstract

The aim of this study was to determine the external validity of Taekwondo-specific exercise protocols. 10 male international Taekwondo competitors (age 18±2 years) took part in a championship combat and an exercise protocol that simulated the activity pattern of Taekwondo combat. Heart rate and venous blood samples were obtained in both settings. Despite similarity in the activity profiles, the championship Taekwondo combats elicited higher (p < 0.05) heart rate (188±8 bpm), plasma lactate (12.2±4.6 mmol.L ^{− 1}), glucose (10.3±1.1 mmol.L ^{− 1}), ­glycerol (143.4±49.4 µmol.L ^{− 1}), ­adrena­line (2.7±1.7 nmol.L ^{− 1}) and noradrenaline (14.3±9.4 nmol.L ^{− 1}) responses than the ­Taekwondo exercise protocol (heart rate: 172±4 beats.min ^{− 1}; plasma lactate: 3.6±2.7 mmol.L ^{− 1}; glucose: 5.9±0.8 mmol.L ^{− 1}; glycerol: 77.7±21.3 µmol.L ^{− 1}; adrenaline: 0.6±0.2 nmol.L ^{− 1} and noradrenaline: 3.0±1.1 nmol.L ^{− 1}). This discrepancy in the physiological responses appeared to be mediated by a reduced stress response in the Taekwondo exercise protocol. These findings suggest that Taekwondo-specific exercise protocols are not appropriate to study the physiological demands of Taekwondo. ­Strategies designed to increase the stress response in this setting may be necessary to improve the external validity of this experimental framework.

Judoca, presidente do Comitê Olímpico Espanhol, acusado de plágio em sua tese de doutorado

O interessantes da matéria é que a orientadora também foi acusada de outros problemas em sua carreira. Se tudo for verdade, é a prova de que as pessoas realmente se agrupam conforme o caráter...

http://www.eldiario.es/politica/presidente-candidatura-denunciado-JJOO-Pekin_0_87841529.html

Campeã olímpica barrada em centro de treinamento

Après avoir d'abord repris l'entraînement dans son club, Lucie Décosse a fait son retour à l’INSEP cette semaine. Mais après 3 mois de vacances, certaines mémoires semblaient avoir oublié la championne olympique de Londres ! A son arrivée sur les lieux, sans badge, les vigiles de l'accueil n'ont pas souhaité la laisser entrer. Ni elle, ni son entraîneur, Larbi Benboudaoud, pourtant à l’INSEP depuis plus de 20 ans. A l’INSEP, on ne rentre pas comme dans un moulin et les vigiles leur ont expliqué qu'ils ne les connaissaient pas. Ils ont fini par retrouver la raison... et la mémoire.

http://www.rmcsport.fr/editorial/326650/l-insep-refuse-de-laisser-entrer-decosse/

VFC e carga de esforço em atletas de TKD

RELACIÓN ENTRE EL DOMINIO FRECUENCIAL DE LA VARIABILIDAD DEL RITMO CARDIACO Y LA CARGA DE ESFUERZO EN TAEKWONDISTAS CHILENOS DE ELITE


Luperfina del R. Cortés Escobar
Tomás Herrera Valenzuela
Felipe Soro Álvarez

RESUMEN
El objetivo de este estudio fue determinar si existe relación entre el dominio frecuencial de la Variabilidad del Ritmo Cardiaco (VRC) y la carga de esfuerzo percibida por taekwondistas chilenos de elite.
Se estudio a cinco sujetos pertenecientes a selección chilena de taekwondo durante una semana de entrenamiento, a quienes se les valoró la VRC a través de un monitor POLAR RS 810 y el programa informático Kubios HRV versión 2.0. Por otro lado, se registró la percepción del esfuerzo de los deportistas después de cada sesión de entrenamiento El análisis estadístico de los datos se realizó mediante el paquete estadístico GraphPad Prism 4.0.
Se encontró una correlación positiva (P<0 bandas="bandas" carga="carga" componentes="componentes" con="con" correlaci="correlaci" de="de" entre="entre" esfuerzo="esfuerzo" frecuenciales="frecuenciales" hf="hf" la="la" las="las" lf="lf" los="los" mientras="mientras" mostraron="mostraron" ms2="ms2" n.u.="n.u." n="n" negativa="negativa" p="p" para="para" percibida.="percibida." que="que" relaci="relaci" u.n.="u.n." una="una" valores="valores" versus="versus" vrc="vrc" y="y">Los resultados obtenidos indican que la VRC en el dominio frecuencial se muestra como herramienta útil para detectar determinados patrones de comportamiento cardiaco vinculados a la carga de esfuerzo. Por otro lado, se puede establecer que la percepción del esfuerzo en los sujetos de estudio es un indicador valido para la planificación de la carga de entrenamiento.