Associação de testes funcionais e biomecânicos com lesões musculoesqueléticas auto relatadas em praticantes de CrossFit: um estudo transversal

Abstract

Introduction: Crossfit® is a modality that promotes improvement in physical conditioning and strength and encompass both a philosophy of life and a sport at a competitive level. For these characteristics, CrossFit® has been described as a modality with a high risk for the development of musculoskeletal injuries. Objective: to compare the performance in biomechanical and functional tests of CrossFit® practitioners with and without musculoskeletal injuries. Methods: Cross-sectional study, conducted in six establishments accredited to practice Crossfit®. The collection included the application of an epidemiological questionnaire and a biomechanical evaluation composed of ten tests that assessed flexibility, mobility, performance and neuromuscular control. To analyze association between the variables of the questionnaire with musculoskeletal injuries related to the CrossFit® practice, a bivariate logistic regression analysis was performed. Results: 120 practitioners were selected for assessments whether the prevalence of injury for this population was 28%, and the most affected structures were the shoulders (37%) and the spine (37%). After the bivariate analysis, 13 variables remained, but only 4 were for the final analysis: hip flexion goniometry on the dominant limb (OR = 0.91 95% CI 0.85-0.98), the USSP test on the dominant limb (OR = 0.08 CI95% 0.01-0.93) and in the non-dominant member (OR = 18.51 CI95% 1.30- 263.44) and the Crossover Hop test in the dominant member (OR = 1, 67 95% CI 0.92-3.02). Conclusion: Biomechanical tests of hip flexion mobility, upper limb (USSP) and lower (Crossover Hop) performance are associated with Crossfit-related injuries.