Prevalência de lesões musculoesqueléticas em praticantes de CrossFit®: um estudo transversal

Abstract

CrossFit® is a conditioning and strengthening program that has gained recognition and interest among a physically active population. Due to its nature of constantly varied high intensity exercises and limited rest time, athletes may be predisposed to the development of injuries. The aim of this study was to determine the prevalence of musculoskeletal injuries in CrossFit® practitioners and to identify the possible associated factors. Methods: A cross-sectional study was conducted between May and October 2017, with 344 CrossFit® practitioners. Participants answered a questionnaire with personal data, CrossFit® practice history, training characteristics and injury history in the past 12 months. Data were analyzed by descriptive statistics and logistic regression models. Results: 344 questionnaires were answered (162 by women and 182 by men). The sample mean age was 29.25 years old, with a mean weight of 72.03 kg and an average height of 1.68 m. Most athletes have participated in competitions, had more than 12 months of practice, and trained more than four days per week and up to an hour and a half per day. The variable that showed an association with injury in CrossFit® athletes in the last twelve months was the duration of training (OR = 2.20, 95% CI = 1.14 - 4.25). Conclusion: The prevalence of injury was 23.5% and the most affected regions of the body were lumbar spine, shoulders and knees. The training duration of up to 120 minutes was associated with the presence of musculoskeletal injury in CrossFit® practitioners.