title: Chronic low back pain and disability in Brazilian jiu-jitsu athletes.
abstract: OBJECTIVE
  To identify the prevalence of chronic low back pain (CLBP) and functional disability in Brazilian jiu-jitsu athletes.
  
  
  METHODS
  Cross-sectional, observational.
  
  
  METHODS
  The study was conducted at jiu-jitsu training sites in the State of Rio de Janeiro.
  
  
  METHODS
  Presence of Chronic low back pain and Quebec Back Pain Disability Scale.
  
  
  RESULTS
  The sample was composed of 72 athletes (mean age of 26.7), being 36 recreational and 36 professional. Chronic low back pain was present in 80.6% of athletes. Pain was present in 88.9% of professional and 72.2% of recreational athletes. In the professional jiu-jitsu group, the median of the Quebec Back Pain Disability Scale (QBPDS) was 10 (IQR = 16), and in the recreational group the QBPDS result was 6.0 (IQR = 12) (p = .001). Professional athletes had a marginally significant increased risk of developing CLBP [OR = 3.0; CI(95%) 0.8-10.9)].
  
  
  CONCLUSIONS
  The prevalence of low back pain in jiu-jitsu practice was high and professional athletes seem to have a high risk of developing CLBP.
authors.affiliation: Instituto Federal do Rio de Janeiro (IFRJ), Rio de Janeiro, Brazil; Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil. Electronic address: felipe.reis@ifrj.edu.br.
authors.forename: Felipe J J
authors.initials: FJ
authors.lastname: Reis
authors.affiliation: Hospital Universitário Gaffrèe e Guinle (HUGG), Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.
authors.forename: Mariana D
authors.initials: MD
authors.lastname: Dias
authors.affiliation: Universidade Estácio de Sá (UNESA), Rio de Janeiro, Brazil.
authors.forename: Flavia
authors.initials: F
authors.lastname: Newlands
authors.affiliation: Epidemiology Department, Institute of Social Medicine, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil.
authors.forename: Ney
authors.initials: N
authors.lastname: Meziat-Filho
authors.affiliation: Instituto Federal do Rio de Janeiro (IFRJ), Rio de Janeiro, Brazil.
authors.forename: Adriana R
authors.initials: AR
authors.lastname: Macedo
mesh_terms: D000293:Adolescent; D000328:Adult; D056352:Athletes; D001938:Brazil / Q000453:epidemiology; D059350:Chronic Pain / Q000453:epidemiology*; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D006801:Humans; D017116:Low Back Pain / Q000453:epidemiology*; D008297:Male; D016139:Martial Arts; D055815:Young Adult
keywords: Chronic pain; Epidemiology; Low back pain; Martial arts