Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6819
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Title: Measurement of craniovertebral angle with electronic head posture instrument : criterion validity
Authors: Lau, MCH
Chiu, TTW
Lam, TH
Issue Date: 2010
Source: Journal of rehabilitation research and development, 2010, v. 47, no. 9, p. 911-918
Abstract: This study evaluated the criterion-related validity of the Electronic Head Posture Instrument (EHPI) in measuring the craniovertebral (CV) angle by correlating the measurements of CV angle with anterior head translation (AHT) in lateral cervical radiographs. It also investigated the correlation of AHT and CV angle with the Chinese version of the Northwick Park Questionnaire (NPQ) and Numeric Pain Rating Scale (NPRS). Thirty patients with diagnosis of mechanical neck pain for at least 3 months without referred symptoms were recruited in an outpatient physiotherapy clinic. The results showed that AHT measured with X-ray correlated negatively with CV angle measured with EHPI (r = -0.71, p < 0.001). CV angle also correlated negatively with NPQ (r = -0.67, p < 0.001) and NPRS (r = -0.70, p < 0.001), while AHT positively correlated with NPQ (r = 0.390, p = 0.033) and NPRS (r = 0.49, p = 0.006). We found a negative correlation between CV angle measured with the EHPI and AHT measured with the X-ray lateral film as well as with NPQ and NPRS in patients with chronic mechanical neck pain. EHPI is a valid tool in clinically assessing and evaluating cervical posture of patients with chronic mechanical neck pain.
Keywords: Anterior head translation
Cervical posture
Craniovertebral angle
Electronic Head Posture Instrument
Forward head posture
Mechanical neck pain
Neck disability
Northwick Park questionnaire
Numeric pain rating scale
Postural assessment
Rehabilitation
Publisher: U.S. Department of Veterans Affairs, Rehabilitation Research and Development Service
Journal: Journal of rehabilitation research and development 
ISSN: 0748-7711
DOI: 10.1682/JRRD.2010.01.0001
Rights: The article is available at http://www.rehab.research.va.gov/jour/10/479/abslau.html
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