Walking Speedometer

Light-interrupt based timing circuitry is utilized to independently record average velocity (speed) of each trial for each subject. As the subjects traverse the walkway, they interrupt a mid-thigh level infrared beam that starts a counter. Tripping a second beam 4 meters away stops the counter and an average forward velocity is displayed in meters per second. Most gait parameters are a function of average velocity so it is an important covariate to measure.