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KMID : 1140920190430060707
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Annals of Rehabilitation Medicine
2019 Volume.43 No. 6 p.707 ~ p.719
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Determining the Reliability of a New Method for Measuring Joint Range of Motion Through a Randomized Controlled Trial
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Ahn So-Young
Ko Han-Bit
Yoon Jeong-Oh
Cho Sun-Ung
Park Jong-Hyun
Cho Kang-Hee
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Abstract
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Objective: To compare the reliability and validity of the Korean range of motion standard protocol (KRSP) for measuring joint range of motion (ROM) with those of the conventional ROM measurement using a goniometer.
Methods: We conducted a randomized controlled trial involving 91 healthy elderly individuals. We compared two strategies of measuring joint ROM to evaluate the reliability and validity of each standardized protocol: first, the KRSP based on the Chungnam National University guidelines and second, handheld goniometric measurement. In the first strategy, 3 examiners (1 rehabilitation doctor, 1 physical therapist, and 1 physical therapy student) independently measured joint ROM in 46 randomly selected subjects; in the second strategy, another 3 examiners (1 rehabilitation doctor, 1 physical therapist, and 1 physical therapy student) measured joint ROM in 45 randomly selected subjects. The reliability of each protocol was calculated using intraclass correlation coefficient, ICC(2,1), and root mean square error (RMSE).
Results: Both protocols showed good to excellent intra-rater reliability. With goniometer use, the inter-rater reliability was low?ICC(2,1), 95% confidence interval ranged from 0.643 (0.486?0.783) to -0.078 (-0.296?0.494)? and RMSE was high. With the KRSP, the inter-rater reliability ranged from 0.846 (0.686?0.931) to 0.986 (0.972?0.994) and RMSE was low.
Conclusion: ROM measurements using the KRSP showed excellent reliability. These results indicate that this protocol can be the reference standard for measuring ROM in clinical settings as an alternative to goniometers.
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KEYWORD
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Range of motion, Reference standard, Joints, Measures
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