Metabolic, muscle damage and heart rate responses in Brazilian Jiu-Jitsu matches of varied duration

Abstract

The aim of this study was to analyze physiological responses in Brazilian jiu-jitsu (BJJ) athletes during matches of varied duration. To this end, 10 athletes (age: 29±5 years, body mass: 77.5±6.3 kg, body fat: 10.0±5.2%, systematic BJJ practice: 10±2 years) were analyzed in matches of varied duration (2-min, 5-min, 8-min and 10-min). Blood collection was performed to determine energetic demands, hormonal responses and muscle damage. The main results showed that a longer duration of combat generated higher lactate (p