Enhancing Observational Gait Analysis – Techniques and Tips for Analyzing Gait Without a Gait Lab

Abstract

In settings where three-dimensional gait analysis is not feasible, observational gait analysis can provide important information about gait pathology. Among the validated scoring systems to organize the observations of gait, the Edinburgh Visual Gait Score (EVGS) is the most comprehensive and has the most favorable psychometrics. Improvements in mobile videography have created opportunities to obtain high-quality slow-motion video in a clinic setting. These videos can provide excellent documentation of gait pathology in the sagittal, coronal, and vertical planes. Free and low-cost video analysis software is now available on all mobile device platforms, allowing for slow-motion video analysis of gait with increased accuracy. By utilizing the appropriate technology with a validated scoring system, gait analysis outside the walls of a gait lab is possible. Though limitations of the mobile enhanced observational gait analysis technique require further study, the technique can facilitate improved documentation of gait pathology and improved communication between providers. Key Concepts: • Observational gait analysis can be improved by the use of validated scoring systems such as the Edinburgh Visual Gait Score (EVGS). • Mobile device video with additional low-cost equipment can provide high-quality slow-motion video to improve observational gait analysis. • Free or low-cost mobile applications for slow-motion video analysis and angle annotations can further refine the technique of mobile enhanced observational gait analysis.