Hematological and biochemical markers after a Brazilian Jiu- Jitsu tournament in world-class athletes

• Published in: Revista brasileira de cineantropometria & desempenho humano Vol. 16; no. 2; pp. 144 - 151
• Main Authors: Brandao, Felipe, Fernandes, Fielder Miguel, Alves, Jose Vilaca, Fonseca, Sandra, Reis, Victor Machado
• Format: Journal Article
• Language: Portuguese
• Published: 01.01.2014
• ISSN: 1415-8426; 1980-0037
• DOI: 10.5007/1980-0037.2014v16n2p144

The objectives of this study were to assess the effect of participation in a Brazilian Jiu-Jitsu (BJJ) competition on biochemical and hematological markers, and to determine whether the skill level of the athletes influenced these responses. Thirty BJJ fighters were divided into two groups: an elite group (EL) including 20 subjects classified as 1 super(st) to 3 super(rd) place in the previous World Championship, and a non-elite group (NEL) including 10 BJJ athletes not participating in competitions. A BJJ tournament was simulated using the same rules as those of the World Championship. Each athlete performed five fights of up to 10 minutes each, with 5-minute resting intervals between fights. The fighting order was random and fights confronted athletes of the same group. Pre- and post-competition blood samples were collected to assess biochemical and hematological markers. Participation in the competition induced significant increases in the folio wing variables in athletes of the two groups: glucose, uric acid, urea, creatinine, total protein, albumin, creatine kinase, leukocytes, neutrophils, rods, and monocytes. There was a significant increase in platelet count only in the NEL group. Total protein and mean platelet volume were higher in athletes of the EL group, whereas eosinophil and monocyte numbers were higher in the NEL group. A significant time x group interaction was only observed for serum creatinine, with higher mean values in the EL group pre- and post-competition.Original Abstract: Os objetivos deste estudo foram avaliar o efeito de um esforco de competicao de Jiu-Jitsu Brasileiro (JJB) sobre marcadores bioquimicos e hematologicos, e investigar se esse efeito diferia em funcao do nivel de prestacao. Foram estudados 30 lutadores, divididos em: grupo de Elite ou EL (n= 20), composto por atletas com colocacoes entre I[degrees] e 3[degrees] lugar no Campeonato Mundial de JJB Brasileiro; e grupo Nao Elite ou NEL (n= 10), composto por praticantes nao competidores. Simulou-se um campeonato de JJB com as mesmas regras do Campeonato do Mundo. Cada atleta realizou cinco lutas de ate 10 minutos cada e com um intervalo de cinco minutos entre as mesmas. A ordem e a composicao das lutas foram realizadas atraves de sorteio e entre atletas do mesmo grupo. Antes e apos a competicao, foram feitas recolhas de sangue para obtencao dos marcadores bioquimicos e hematologicos. A competicao de JJB induziu aumentos significativos nos atletas de ambos os grupos nas seguintes variaveis: glicose, acido urico, ureia, creatinina, proteinas totais, albumina, creatinaquinase, leucocitos, neutrofilos, bastoes e monocitos. No plaquetocrito, houve aumento significativo apenas no grupo NEL. As proteinas totais e o volume plaquetario medio apresentaram valores mais elevados nos atletas EL; enquanto os eosinofilos e monocitos foram mais elevados nos atletas NEL. Apenas na creatinina serica se verificou um efeito significativo na interacao momento x grupo, verificando-se valores mais elevados no grupo EL, tanto no pre como no pos-competicao.