Reliability of the OptoGait portable photoelectric cell system for the quantification of spatial-temporal parameters of gait in young adults

Highlights • The OptoGait system provides a reliable method to evaluate spatial-temporal gait progress. • Nineteen variables of the OptoGait system were evaluated for reliability; those that showed high reliability included: step length, stride length, distance, total contact time, step time, walking speed, cadence, gait cycle, stance phase, swing phase, heel contact phase, flatfoot phase, takeoff phase, single limb support, double limb support, load response phase, and pre-swing phase. • Only two variables, acceleration and progressive step time, were not reliable measures.