Abstract
Purpose The current study was designed to assess interrater and intrarater validity of cervical range of motion measurements performed with a CROM goniometer. Material and Methods. The study involved 95 healthy university students (31 males and 64 females) aged 20-24 years. Two examiners performed measurements of cervical range of motion using a CROM goniometer. The same subjects were examined again after two weeks, in the same conditions. The results acquired by one rater during the first and the second examination were compared for reproducibility, while the results obtained by the two examiners were compared to assess validity and reliability of the tool. Cronbach's alpha was applied to determine intrarater reliability, and the values of correlations were used to assess the interrater agreement. Results Analysis of the results showed both intrarater and interrater agreement in all the measures of cervical range of motion. The highest intrarater and interrater concordance was observed in the measure of extension. Intrarater agreement for Examiner 1 was reflected by Cronbach's alpha = 0.85, and for Examiner 2 by Cronbach's alpha = 0.89. As for the interrater agreement in the measure of extension, the value of correlation in both the first and the second measurement amounted to r = 0.89. Conclusions Measurements performed with the CROM goniometer show interrater and intrarater agreement in assessments of cervical range of motion. The CROM goniometer can be recommended for use in daily clinical practice.
Highlights
The most common dysfunctions of the locomotor system include dysfunction of the cervical spine [1, 2], which is recognised as the most mobile segment of the spine [3]
The intraclass correlation coefficients (ICC) were the same across the two groups, and all the ICC values exceeded 0.80. These results show that the quality of the intrarater reliability for the measurement of cervical spine active range of motion using the Cervical range of motion (CROM) can be characterized as good to excellent [10]
The results reported by Fletcher and Bandy are similar to earlier findings related to intrarater reliability where the average ICCs were higher than 0.80 [19]
Summary
The most common dysfunctions of the locomotor system include dysfunction of the cervical spine [1, 2], which is recognised as the most mobile segment of the spine [3]. Both the biomechanics and anatomy of the cervical spine contribute to the risk of strain, affecting the intervertebral disc. This leads to various ailments generally referred to as neck pain syndrome [4]. Recovery of physiological mobility is of key importance in cervical spine disorders [5]
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