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ORIGINAL ARTICLE  SPORT INJURIES AND REHABILITATION 

The Journal of Sports Medicine and Physical Fitness 2020 June;60(6):889-94

DOI: 10.23736/S0022-4707.20.10364-5

Copyright © 2020 EDIZIONI MINERVA MEDICA

language: English

Epidemiology and associated factors for CrossFit-related musculoskeletal injuries: a cross-sectional study

Pedro O. LIMA 1, 2 , Mateus B. SOUZA 1, Tailândia V. SAMPAIO 1, 2, Gabriel P. ALMEIDA 1, 2, Rodrigo R. OLIVEIRA 1, 2

1 League of Sport Physical Therapy, Federal University of Ceará, Fortaleza, Brazil; 2 Master Program in Physiotherapy and Functioning, Federal University of Ceará, Fortaleza, Brazil



BACKGROUND: CrossFit® is usually composed of high intensity workout routines and is executed quickly, repetitively and with limited rest time. Previous studies have identified a high prevalence of injuries in CrossFit®. This study aimed to determine the prevalence of CrossFit-related musculoskeletal injuries and to identify potential associated factors.
METHODS: A cross-sectional study was conducted with 413 CrossFitters. Participants completed a questionnaire containing personal data, training characteristics and injury history in the last 12 months. Data were analyzed by descriptive statistics and logistic regression models.
RESULTS: The prevalence of CrossFit-related musculoskeletal injuries was 24.0%; and the injury rate was of 0.80 injuries per 1,000 hours of exposure. The regions of the body most affected were the lumbar spine (33.3%), shoulders (31.3%) and knees (14.1%). The majority of CrossFitters participated in competitions (74.6%), had more than 12 months of experience in CrossFit® (62.7%), and trained up to 90 minutes a day (82.3%) for more than 4 days a week (76.8%). The variables that showed a significant association with CrossFit®-related musculoskeletal injuries were weekly training frequency (OR=2.25; 95% CI: 1.13-4.48) and regular physiotherapeutic care (OR=1.85; 95% CI: 1.11-3.07).
CONCLUSIONS: The prevalence of musculoskeletal injury was 24.0%, and the most affected regions of the body were the lumbar spine, shoulders and knees. Training more than four days a week and do not receive regular physiotherapeutic care were associated with CrossFit-related musculoskeletal injuries.


KEY WORDS: Epidemiology; Prevalence; Athletic injuries; Resistance training; Cardiorespiratory fitness

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