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Reproducibility of cervical range of motion in patients with neck pain.

Hoving, J.L., Pool, J.J.M., Mameren, H.H. van, Devillé, W.L.J.M., Assendelft, W.J.J., Vet, H.C.W. de, Winter, A.F. de, Koes, B.W., Bouter, L.M. Reproducibility of cervical range of motion in patients with neck pain. BMC Musculoskeletal Disorders: 2005, 6(59)
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OBJECTIVE: To assess the intra-rater and inter-rater reproducibility of the measurement of active Range of Motion (ROM) in patients with neck pain using the Cybex Electronic Digital Inclinometer-320 (EDI-320). DESIGN: In an outpatient clinic in a primary care setting 32 patients with at least 2 weeks of pain and/or stiffness in the neck were randomly assessed, in a test- retest design with blinded raters using a standardized measurement protocol. Main outcome measure: Cervical flexion-extension, lateral flexion and rotation was assessed. RESULTS: Reliability expressed by the Intraclass Correlation Coefficient (ICC) was 0.93 (lateral flexion) or higher for intra-rater reliability and 0.89 (lateral flexion) or higher for inter-rater reliability. The 95% limits of agreement for intra-rater agreement, expressing the range of the differences between two ratings were -2.5 +/- 11.1 degrees for flexion-extension, -0.1 +/- 10.4degrees for lateral flexion and -5.9 +/- 13.5 degrees for rotation. For inter-rater agreement the limits of agreement were 3.3 +/- 17.0
degrees for flexion-extension, 0.5 +/- 17.0degrees for lateral flexion and -1.3 +/- 24.6 degrees for rotation. CONCLUSIONS: In general, the intra-rater reproducibility and the inter-rater reproducibility were good. We recommend to compare the reproducibility and clinical applicability of the EDI-320 inclinometer with other cervical ROM measures in symptomatic patients. (aut.ref.)