Incidence of musculoskeletal disorders in brown and black belt Jiu-Jitsu practitioners through the MIR-Q

Abstract

Jiu-Jitsu is a high-intensity sport that has gained increasing worldwide popularity, but, due to the nature of the techniques such as levers, twists and projections, practitioners are susceptible to musculoskeletal injuries. The most common injuries may be related to training intensity, frequency of competitions, in addition to performance level. This study aims to analyze the incidence of musculoskeletal disorders in Jiu-Jitsu practitioners at brown and black belts, using the Sports Readiness Questionnaire with a Focus on Musculoskeletal Injuries (MIR-Q). A quantitative, basic, descriptive and survey research was carried out, in which the MIR-Q questionnaire and additional questions were applied through a form on Google Forms. Eight male individuals participated in the research, of these, 87.5% reported having faced at least one injury, with the lower back being the most affected. The incidence of injuries was higher among male athletes, athletes with more than four years of training, who attend classes more than twice a week and are up to 35 years old. Injuries in Jiu-Jitsu are associated with high intensity training and participation in regular competitions, resulting from advanced techniques and inadequate execution. Furthermore, factors such as age, frequency and training time influence athletes' performance. The results indicate that practicing this sport can lead to injuries, especially in athletes who dedicate themselves and compete regularly, highlighting the importance of structured training and adequate rest periods to prevent injuries.