The video shows the quadruped robot trotting on a treadmill test fixture. The legs have fixed springs. There are no sensors or control except for the motion of the hips and shoulders. This is a demonstration of the passive stability with directionally compliant legs.
This research project is led by robotics faculty Prof. Sanford Meek. The project “NSF NRI grant: Biologically-inspired, hybrid quadruped robot control” is sponsored by the National Science Foundation.