title: Correlation between Trunk Posture and Neck Reposition Sense among Subjects with Forward Head Neck Postures.
abstract: OBJECTIVE
  To assess the correlation of abnormal trunk postures and reposition sense of subjects with forward head neck posture (FHP).
  
  
  METHODS
  In all, postures of 41 subjects were evaluated and the FHP and trunk posture including shoulder, scapular level, pelvic side, and anterior tilting degrees were analyzed. We used the head repositioning accuracy (HRA) test to evaluate neck position senses of neck flexion, neck extension, neck right and left side flexion, and neck right and left rotation and calculated the root mean square error in trials for each subject. Spearman's rank correlation coefficients and regression analysis were used to assess the degree of correlation between the trunk posture and HRA value, and a significance level of α = 0.05 was considered.
  
  
  RESULTS
  There were significant correlations between the HRA value of right side neck flexion and pelvic side tilt angle (p < 0.05). If pelvic side tilting angle increases by 1 degree, right side neck flexion increased by 0.76 degrees (p = 0.026). However, there were no significant correlations between other neck motions and trunk postures.
  
  
  CONCLUSIONS
  Verifying pelvic postures should be prioritized when movement is limited due to the vitiation of the proprioceptive sense of neck caused by FHP.
authors.affiliation: Department of Physical Therapy, Faculty of Health Science, Eulji University, 212 Yangji-dong, Sujeong-gu, Seongnam, Gyeonggi-do 461-713, Republic of Korea.
authors.forename: Han Suk
authors.initials: HS
authors.lastname: Lee
authors.affiliation: Department of Physical Therapy, Ansan University, 155 Ansan University Road, Ansan, Gyeonggi-do 426-701, Republic of Korea.
authors.forename: Hyung Kuk
authors.initials: HK
authors.lastname: Chung
authors.affiliation: Department of Physical Therapy, Samsung Seoul Hospital, 81 Irwon Ro, Gang Nam-gu, Seoul 135-710, Republic of Korea.
authors.forename: Sun Wook
authors.initials: SW
authors.lastname: Park
mesh_terms: D000328:Adult; D005260:Female; D006257:Head / Q000503:physiopathology*; D006801:Humans; D008297:Male; D009068:Movement / Q000502:physiology; D018482:Muscle, Skeletal / Q000503:physiopathology*; D009333:Neck / Q000503:physiopathology*; D011187:Posture / Q000502:physiology*; D011434:Proprioception; D016059:Range of Motion, Articular / Q000502:physiology