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BioMed Research International
Volume 2015 (2015), Article ID 689610, 6 pages
http://dx.doi.org/10.1155/2015/689610
Research Article

Correlation between Trunk Posture and Neck Reposition Sense among Subjects with Forward Head Neck Postures

1Department of Physical Therapy, Faculty of Health Science, Eulji University, 212 Yangji-dong, Sujeong-gu, Seongnam, Gyeonggi-do 461-713, Republic of Korea
2Department of Physical Therapy, Ansan University, 155 Ansan University Road, Ansan, Gyeonggi-do 426-701, Republic of Korea
3Department of Physical Therapy, Samsung Seoul Hospital, 81 Irwon Ro, Gang Nam-gu, Seoul 135-710, Republic of Korea

Received 9 April 2015; Revised 30 May 2015; Accepted 2 June 2015

Academic Editor: Thierry Paillard

Copyright © 2015 Han Suk Lee et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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 . If pelvic side tilting angle increases by 1 degree, right side neck flexion increased by 0.76 degrees . However, there were no significant correlations between other neck motions and trunk postures. Conclusion. Verifying pelvic postures should be prioritized when movement is limited due to the vitiation of the proprioceptive sense of neck caused by FHP.