Biochemical, hormonal and hematological responses to brazilian Jiu- jitsu matches

Blood parameters provide different data regarding t he assimilation of a training program and allow the understanding of organic adaptation to sp orts practice. The aim of this study was to quantif y changes in biochemical, hormonal and hematological markers in response to subsequent Brazilian Jiu-Jit su (BJJ) matches. Four experienced fighters (27,5±3,1 years; 79,4±4,7kg; 79,4±4,7cm and 8,3±2,9% of body fat) participated in this study. The athletes were submitted to blood collecting in four conditions i) 12 hours of fasting (JO); ii) before the fight 1 (PreC ; immediately before the fight); iii) after the fig ht 1 (PostC1) and, iv) after fight 2 (PostC2), being the last two held immediately after each fight. Creati ne kinase (CK) and CK-MB (cardiac) levels were lower at PreC as compared with PostC1 and PostC2 (p<0.05). Levels of aspartate aminotransferase were higher at JO when compared with PostC1 (p=0.04). In terms of creatinine concentrations, it has been ide ntified a difference between PreC and PostC2 (p<0.0 5). The concentration of lactate increased from JO to P reC, PostC1 and PostC2 (p=0.001) and PreC to PostC2 (p=0.001). In terms of white series, it has been fo und significant difference (p<0.001) from JO leucoc ytes counting to PostC1 and PostC2. The results of this study suggest that BJJ fights promote: i) increase in markers of activation of the anaerobic component, ATP breakdown and muscle damage, which denotes high intensity efforts; ii) cumulative response of physiological markers of energetic rate and inflamm atory reaction and iii) Although no statistical differenc e, we hypothesized that the hormonal behavior, specifically cortisol, may present a correlation wi th competitive success.