Abstract
BackgroundBrazilian jiu-jitsu is characterized by musculoskeletal disorders and high occurrence of sports injuries. The present study was aimed to analyze some internal factors, as well as to describe occurrence and characteristics of retrospective musculoskeletal injuries in different age groups of Brazilian jiu-jitsu practitioners.MethodsOne hundred ninety-three Brazilian jiu-jitsu practitioners, which were divided into three age groups: Adolescent, Adult, and Master. Besides anthropometric characterization, standard clinical tests were conducted to analyze the global and segmental joint flexibility, lumbar spine range of motion, and handgrip strength. Sports injury occurrence and total physical activity were obtained from an adapted morbidity survey and International Physical Activity Questionnaire - Short Form (IPAQ-SF), respectively.ResultsA total of 247 cases of retrospective injuries was registered (1.27 injury/ participant). Occurrence of rectus femoral muscle retraction in the right leg was increased within Master. Adult and Master have exhibited higher occurrence of sports injuries than Adolescent group (p < 0.05). Joint injuries were the most common sports-related injuries by all Brazilian jiu-jitsu practitioners. While female gender and exposure time constituted the most predictive variables for sports injury occurrence in Adolescent, graduation level was more associated with sports injuries occurrence in Adult.ConclusionsJoint injuries derived from combat demands were the main sports injury in all age categories of Brazilian jiu-jitsu. Master subjects presented a higher occurrence of clinical changes and retrospective musculoskeletal injuries in relation to other age groups. Female gender and exposure time constituted the main predictive factors in adolescent subjects, while graduation category was more directly associated with retrospective injury onset in the Adult group.
Highlights
Brazilian jiu-jitsu is characterized by musculoskeletal disorders and high occurrence of sports injuries
Clinical test To analyze global joint flexibility, we considered methodological principles described by Kendall et al [20]
With respect to the constitution of the age groups, all groups have showed a greater proportion of male in relation to female subjects (Table 1); Masters integrated higher proportion of male subjects, in comparison to the Adolescents
Summary
Brazilian jiu-jitsu is characterized by musculoskeletal disorders and high occurrence of sports injuries. Brazilian jiu-jitsu is a high-intensity combat sport, combining intermittent bouts of very intense anaerobic exercise, interspersed with lower-intensity periods of aerobic activities [2,3,4,5]. It requires concentration, balance and important physical conditioning to execute takedowns, sweeps, joint locks and chokes in different circumstances of body combat [1,2,3,4,5].
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