Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21358
Title: Clinical measurement of craniovertebral angle by electronic head posture instrument: a test of reliability and validity
Authors: Lau, HMC
Chiu, TTW
Lam, TH
Keywords: Craniovertebral angle
Reliability
Validity
Issue Date: 2009
Publisher: Churchill Livingstone
Source: Manual therapy, 2009, v. 14, no. 4, p. 363-368 How to cite?
Journal: Manual therapy 
Abstract: The study was a cross-sectional reliability study with the objective of assessing the reliability and validity of the Electronic Head Posture Instrument (EHPI) in measuring the craniovertebral (CV) angle for subjects with or without neck pain. Twenty-six subjects (mean age = 36.88, SD ± 9.95) with chronic neck pain and 27 subjects (mean age = 31.85, SD ± 7.63) without neck pain were recruited. The CV angle was measured by the EHPI which consists of an electronic angle finder, a transparent plastic base and a camera stand. Two therapists were recruited to assess the intra- and inter-rater reliability of the EHPI in two separate sessions of measurement. The difference in CV angle between the two groups was determined. The CV angle of the patient group (mean 43.94, SD ± 3.61) was significantly smaller (p < 0.001) than that of the normal group (mean 50.58, SD ± 2.09). Intra-rater (intra-class correlation coefficient (ICC) ranged from 0.86 to 0.94) and inter-rater (ICC ranged from 0.85 to 0.91) reliability of the EHPI in measuring CV angle for both groups of subjects were high. In conclusion the EHPI was found to be reliable and valid in measuring the CV angle for subjects with or without neck pain.
URI: http://hdl.handle.net/10397/21358
ISSN: 1356-689X
EISSN: 1532-2769
DOI: 10.1016/j.math.2008.05.004
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