This disclosure describes, according to some implementations, a system and method for capturing sensor data for gait analysis of a subject using a robot. In an example method, a robot unit receives an instruction to monitor a gait of a subject； initializes a monitoring approach in response to receiving the instructions to begin monitoring the gait of the subject； collecting sensor data capturing movement of the subject along the pathway portion； and generating gait data for gait analysis based on the sensor data. In various embodiments, the monitoring approaches may include an active approach, a passive approach, or a hybrid approach.
