Reliability and validity of shadow goniometer for measuring range of motion in knee joint

Abstract

Electro goniometer devices in Indian market gives less opportunity to do research as well as accurately measure the proprioception of joints. Hence Shadow goniometer was developed and designed. However the reliability and validity of it need to be investigated in measuring range of motion. So that this tool can be used to measure the joint position sense.rnMaterials & Methods: Ten healthy subjects were selected with an age group of 20 to 25. The standard goniometer was used to measure knee flexion followed by Shadow goniometric measurement of knee flexion. The measurements were repeated with shadow goniometer on the second day. rnResults: The shadow goniometer was found to be a good reliable with Intraclass correlation of 0.993(p value < 0.0001) and valid tool with correlation coefficient 0.996(p value < 0.0001) in measuring knee flexion range of motion. rnConclusion: The shadow goniometer found to be a reliable and valid tool for measuring knee flexion range of motion. This instrument can be alternative to electro-goniometer for measuring joint position sense.