title: Altered pain sensitivity in elderly women with chronic neck pain.
abstract: BACKGROUND
  Age-related changes occur in both the peripheral and central nervous system, yet little is known about the influence of chronic pain on pain sensitivity in older persons. The aim of this study was to investigate pain sensitivity in elders with chronic neck pain compared to healthy elders.
  
  
  METHODS
  Thirty elderly women with chronic neck pain and 30 controls were recruited. Measures of pain sensitivity included pressure pain thresholds, heat/cold pain thresholds and suprathreshold heat pain responses. The pain measures were assessed over the cervical spine and at a remote site, the tibialis anterior muscle.
  
  
  RESULTS
  Elders with chronic neck pain had lower pressure pain threshold over the articular pillar of C5-C6 and decreased cold pain thresholds over the cervical spine and tibialis anterior muscle when compared with controls (p < 0.05). There were no between group differences in heat pain thresholds and suprathreshold heat pain responses (p > 0.05).
  
  
  CONCLUSIONS
  The presence of pain hypersensitivity in elderly women with chronic neck pain appears to be dependent on types of painful stimuli. This may reflect changes in the peripheral and central nervous system with age.
authors.affiliation: Department of Physical Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand; Back, Neck and Other Joint Pain Research Group, Khon Kaen University, Khon Kaen, Thailand.
authors.forename: Sureeporn
authors.initials: S
authors.lastname: Uthaikhup
authors.affiliation: Department of Physical Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand.
authors.forename: Romchat
authors.initials: R
authors.lastname: Prasert
authors.affiliation: Department of Physical Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand.
authors.forename: Aatit
authors.initials: A
authors.lastname: Paungmali
authors.affiliation: Department of Physical Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand.
authors.forename: Kritsana
authors.initials: K
authors.lastname: Boontha
mesh_terms: D000368:Aged; D016022:Case-Control Studies; D002574:Cervical Vertebrae / Q000294:innervation; D059350:Chronic Pain / Q000503:physiopathology* / Q000523:psychology; D003080:Cold Temperature; D005260:Female; D006358:Hot Temperature; D006801:Humans; D006930:Hyperalgesia / Q000503:physiopathology* / Q000523:psychology; D018482:Muscle, Skeletal / Q000294:innervation; D019547:Neck Pain / Q000503:physiopathology* / Q000523:psychology; D010147:Pain Measurement; D017288:Pain Threshold / Q000523:psychology*; D011312:Pressure; D014110:Touch