康复学报 (Oct 2018)
Inter-rater Reliability of MyotonPRO for Assessing Muscle Mechanical Properties in Stroke Patients
Abstract
Objective:To examine the inter-rater reliability of MyotonPRO under B-ultrasound guidance in assessment of stroke patients'muscle tone.Methods:A total of 28 stroke patients were assessed their muscle mechanical properties of biceps brachii and flexor carpi radialis muscles in relaxed state with MyotonPRO under the B-ultrasound guidance by two testers within 24 hours. Inter-rater reliability of muscle properties was determined using intraclass correlation coefficient (ICC), the standard error of measurement (SEM), the minimal detectable change (MDC90) and Bland-Altman analysis were performed by SPSS.Results:The ICC was above 0.9 in the ten-time scan pattern. The SEM and MDC90of biceps brachii and flexor carpi radialis muscles indicated small measurement error (SEM%<10%, MDC90%<25%). The Bland-Altman analysis revealed no systematic errors between testers.Conclusion:Assessing muscle mechanical properties using MyotonPRO are reliable between testers in measuring the muscle properties in stroke patients.
