어깨관절의 수동적 내회전 관절 가동범위의 측정 방법에 따른 신뢰도와 상완골두의 전방 활주 거리 비교

A Comparison of Reliability and Anterior Glide Distance of Humerus Head of Passive Shoulder Intermal Rotation Range of Motion Measurement Methods

The purpose of this study was to measure intra-rater and inter-rater reliability and range of motion for measurement of passive shoulder internal rotation range of motion and to compare anterior glide dis tance of humeral head in three methods. Fifty healthy subjects and fifty patients with shoulder muscu loskeletal pain were recruited for this study. The subjects' passive shoulder internal rotation range of motion was measured by visual estimation, manual stabilization, and pressure biofeedback unit methods In two trials, measurements were perfonned on each subject by two examiners. Intraclass correlation co efficient (ICC(3,1)) was used to detennine the reliabiliη of each measurement. The intra-rater reliability of the three methods was excellent (ICC=.77~.93) in both groups. The inter-rater reliability of the 、risual estimation method was poor (ICC=.20, .29), the manual scapular stabilization method was poor and fair (ICC=.09, .50), and the pressure biofeedback unit method was excellent (ICC .86, .75) in the experimental and control groups. In the expenmental group, the difference of examined range of motion by each examiner was significant in the 、risual estimation method and manual scapular stabilization method, but there was an insignificant difference between the groups is the pressure biofeedback unit method. This result suggests that the intra-rater and inter-rater reliabiliη of a pressure biofeedback unit was better than the other methods. The difference in distance of the anterior glide of humeral head was insignificant among all the methods. The pressure biofeedback unit method was the most reliable method, so it is proposed to be a new and reliable method to measure internal rotation range of motion.