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http://dx.doi.org/10.7236/IJIBC.2018.10.3.65

A Study on the Reliability and Validity of Measuring the Range of Motion of the Elbow Joint Using a Smartphone Application  

Lee, Jun Cheol (Department of Physical Therapy, Kyungnam College of Information & Technology)
Publication Information
International Journal of Internet, Broadcasting and Communication / v.10, no.3, 2018 , pp. 65-72 More about this Journal
Abstract
The purpose of this study was to assess the intra-tester and inter-tester reliability and validity of elbow flexion range of motion using a smart phone used by the general public. Thirty-one general people participated in this study. The range of motion in active elbow flexion was measured with a goniometer and smart phone over two times by two observers. The intra-taster and inter-tester reliability were evaluated using the intraclass correlation coefficient(ICC). The validity was measured by Pearson's correlation coefficient. The intra-observer reliability was good in all measured items ICC>0.900. The inter-observer reliability was high with ICC>0.806. All correlation coefficients of android app and goniometer were greater than 0.868 and showed a significant positive correlation (p<0.01). The range of motion measurement with a smart phone showed acceptable reliability. Therefore, using a smartphone to measure the range of motion of the elbow joint could provide convenience and economic benefits.
Keywords
Goniometer; Range of motion; Reliability and Validity; Android app; Elbow joint;
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