title: Relationship between subjective neck disorders and cervical spine mobility and motion-related pain in male machine operators.
abstract: METHODS
  In a single blinded procedure, quantified cervical clinical tests were performed on machine operators with and without subjective reports of neck pain.
  
  
  OBJECTIVE
  To evaluate whether subjective reports of neck pain are associated with limited and painful cervical spine mobility.
  
  
  BACKGROUND
  Spinal motion evaluation and pain rating are commonly used for assessing impairment in patients with spinal disorders. However, it is still unclear how cervical spinal motion and corresponding pain rating are affected by subjective reports of neck pain.
  
  
  METHODS
  Forty-nine male forest machine operators completed the Standardized Nordic questionnaire on musculoskeletal symptoms. Maximal voluntary cervical spinal flexion-extension, bilateral axial rotation, and lateral flexion were measured with a goniometer ad modum Myrin, while corresponding pain was rated on Borg's scale.
  
  
  RESULTS
  Nineteen men (38.8%) reported no neck pain within the past 12 months, nine men (18.4%) reported pain during the past 12 months (but not during the past 7 days), and 21 men (42.8%) had experienced neck pain during the past 7 days. The results of two of the range-of-motion tests (flexion and left axial rotation) and three of the pain ratings (during flexion, extension, and left axial rotation) differed significantly between men who reported pain the past 7 days and those with no pain, and they correlated significantly with the severity of pain as reported in the questionnaire.
  
  
  CONCLUSIONS
  Many forest machine operators reporting neck pain in the Nordic questionnaire did have limited and painful cervical spine mobility. Range-of-motion tests may be useful tools to describe impairment and constitute a basis for assessment for therapeutic interventions.
authors.affiliation: Health Services Research Unit, National Institute of Public Health, Oslo, Norway.
authors.forename: K B
authors.initials: KB
authors.lastname: Hagen
authors.forename: K
authors.initials: K
authors.lastname: Harms-Ringdahl
authors.forename: N O
authors.initials: NO
authors.lastname: Enger
authors.forename: R
authors.initials: R
authors.lastname: Hedenstad
authors.forename: H
authors.initials: H
authors.lastname: Morten
mesh_terms: D000328:Adult; D002574:Cervical Vertebrae / Q000503:physiopathology*; D016468:Forestry; D006801:Humans; D008297:Male; D008875:Middle Aged; D009068:Movement; D009333:Neck / Q000503:physiopathology*; D019547:Neck Pain / Q000209:etiology / Q000503:physiopathology*; D009784:Occupational Diseases / Q000209:etiology / Q000503:physiopathology*; D010147:Pain Measurement; D016059:Range of Motion, Articular / Q000502:physiology*; D016037:Single-Blind Method; D011795:Surveys and Questionnaires