It looks like as it has come directly from a Start Wars movie. Although is is not prepared for the Olympics, it is quite promising. A Japanese researcher named Ryuma Niiyama is working on a robot that simulates the human leg anatomy. Currently, he tries to make the robot just... run without falling, but it is equipped with several pneumatic "muscles" and sensors, and he hopes that someday it will go out there on a real track and beat Usain Bolt. Visit his page on the web for more info.