The reliability of a video analysis system (PnO clinical movement dataTM) and the universal goniometer in the measurement of hip, knee and ankle sagittal plane motion amongst healthy subjects : reliability of the PnO clinical movement data

Fatma Murtadha Mohsin, F and McGarry, Anthony and Bowers, Robert (2017) The reliability of a video analysis system (PnO clinical movement dataTM) and the universal goniometer in the measurement of hip, knee and ankle sagittal plane motion amongst healthy subjects : reliability of the PnO clinical movement data. Journal of Prosthetics and Orthotics. ISSN 1040-8800 (In Press)

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    Abstract

    Throughout the rehabilitation process, measuring joint range of motion (ROM) is essential to understand joint kinematics. The universal goniometer (UG) is the most common tool used in the clinical setting for joint ROM measurement. However, a review of the literature examining the reliability of the UG has demonstrated considerable variation in results and highlighted the necessity of introducing a more reliable tool. This study aimed to investigate the reliability of a 2-dimensional video analysis system, PnO Clinical Movement DataTM (PnO CMDTM) compared to the UG. Three testers examined range of motion of eight healthy candidates. Passive sagittal plane motion of the hip, knee and ankle joint was measured with and without markers. ICC values >0.60 were considered to be satisfactory. Most intratester ICC values for PnO CMDTM were found to be above the satisfactory limit (ICC=0.60-0.99). Intratester ICC values for the UG ranged considerably (ICC=0.34-0.94), and some values were below the satisfactory limit. Intertester ICC values across all the joints for PnO CMDTM with markers were found to be above the satisfactory limits (ICC=0.94-0.99). PnO CMDTM was found to be more reliable than the UG. Use of markers was found to increase the reliability. The present work introduces using advanced technology in joint ROM measurement.