The purpose of this study was to investigate the reliability and validity of the Clinometer™ smartphone application. Intrarater and interrater reliability were calculated for devices (i.e., goniometer, Clinometer™, bubble inclinometer) using intraclass correlation coefficient, standard error of measurement, and minimal detectable change. Interinstrument reliability and Clinometer™ validity were also assessed. Intrarater reliability was good (intraclass correlation coefficients = .70 − .83) and interrater reliability was moderate (intraclass correlation coefficient = .63 − .72) across devices. Interinstrument reliability and Clinometer™ validity were supported across analyses. The Clinometer™ is comparable to a goniometer or bubble inclinometer for measuring prone knee flexion.
Reliability and Validity of the Clinometer™ Smartphone Application for Measuring Knee Flexion
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Miley (emilie.miley1@gmail.com) is corresponding author, https://orcid.org/0000-0001-9286-2115
The Clinometer™ smartphone application is an easy-to-use device across different levels of clinicians.
The Clinometer™ may be interchangeable with the current gold standard for measuring range of motion.
The Clinometer™ is an easily accessible range of motion tool that most clinicians already carry.
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