Physiological and Technical-tactical Analysis in Brazilian Jiu-jitsu Competition

Abstract

PurposeThe present study aims at investigating the physiological response and technical-tactical parameters in Brazilian jiu-jitsu competition.MethodsThe study included 35 male Brazilian jiu-jitsu athletes (adult category, body mass: 80.2 ± 13.0 kg), graded from white to brown belt, during combats fought at regional level. Twenty-two fights were analyzed in terms of technique and time structure. Blood glucose, lactate and maximal isometric grip strength were determined before and after the fights. The rate of perceived exertion was also assessed after the fight, using the 6-20 Borg rating. The fights were recorded and the following variables were determined: the exertion/pause ratio and subjective intensity of actions, categorized between low and high intensity.ResultsThe results indicated that during Brazilian jiu-jitsu fights, the glycolytic pathway is only moderately activated (lactate before: 4.4 (4.0 – 4.6) mmol/L, after: 10.1 (8.0 – 11.3) mmol/L; glucose before: 112.4 ± 22.3 mg/dL, after: 130.5 ± 31.0 mg/dL). The exertion during the fight resulted in significant reductions in handgrip strength (right hand grip before: 45.9 ± 10.3 kgf, after: 40.1 ± 9.5 kgf; left hand grip before: 44.2 ± 11.1 kgf, after: 37.0 ± 10.2 kgf). The athletes rated the fight as hard: 15 (13 – 15). Effort/pause ratio was 6:1, while high-intensity actions lasted approximately 4 s, resulting in a low/high intensity? ratio of 8:1.ConclusionIt is recommended that coaches direct the training loads to simulate the energy demand imposed by the competitive matches, activating moderately the glycolytic pathway. Moreover, the time structure of combats can be used to prescribe both physical and technical-tactical training.

Physiological Characteristics of Brazilian Jiu Jitsu and Judo as Compared To Muay Thai

“…While the types of martial arts evaluated here appear to involve both the anaerobic and aerobic pathways, there do appear to be some differences. Brazilian Jiu Jitsu and Judo appear to have more of an aerobic component 10,11 while those competing in Muay Thai rely more on anaerobic pathways. 3 Recommendations for further research would also be to extend this study to the female population as well as the older population in order to determine the effects of these martial arts over a more extended period of time.…”

“…11 While each of these is considered a martial art, they have philosophical differences and involve different techniques and therefore, may differ in their physical demands. Judo and Brazilian Jiu Jitsu 5 appear to rely more on strength, while those who practice Muay Thai reply more on quickness and speed.…”

Análise De Variáveis Fisiológicas E Perceptuais Durante Combates De Brazilian Jiu-Jitsu

“…1 Estudos prévios 2,3 consideram o Brazilian Jiu-Jitsu (BJJ) um esporte predominantemente aeróbio e com ativações do sistema anaeróbio, sendo um esporte composto por luta em pé e no solo, envolvendo vários componentes corporais e diferentes manifestações força. Nesse contexto a busca de métodos com fácil aplicabilidade e validade para quantificar o estresse fisiológico, ou carga interna, 4 inerente a prática de modalidades esportivas de combate se faz necessário.…”

“…4 Alguns resultados a respeito da variação das concentrações de lactato, valores de frequência cardí-aca e tempo de movimento durante os combates são encontrados na literatura na tentativa de caracterizar a modalidade. 5 Andreato et al 2 observou que lutadores durante momentos competitivos obtinham valores de lactato pós combate em torno de 11 mmol/L; e esforço percebido em torno de 15, na escala de Borg 6-20. Em um estudo comparativo, que observou a resposta de lactato sanguíneo em combates simulados de lutadores com diferentes graduações, concluiu que a resposta de lactato foi similar dentre os indivíduos (10.4±3.6 e 10.2±1.3 mmol.l-1).…”

“…5,6 Associado a isso, com o incremento da intensidade, a demanda de energia em função da força, da taxa de trabalho/velocidade resulta em uma mudança para substratos baseados em carboidratos, sendo a utilização de glicogênio e glicose incrementada. 15 Em contrapartida, as variações das concentrações de lactato observadas nesse trabalho não apresentaram valores aproximados com a maioria dos trabalhos disponíveis, 2,6 com exceção dos resultados de Andreato et al 13 Tal diferença pode ser justificada devido a diferenças entre os volumes (duração do combate e intervalos) dos protocolos nos combates.…”