Craig Hutto lost his right leg in a shark attack when he was 16 years old.
Soon after that he became one of the first people to test out a new prosthetic leg created at Vanderbilt University. Researchers there have developed the first fully robotic artificial leg for above-knee amputees. The "bionic leg," as it is called, uses a variety of sensors and motors that replicate muscle and joint movement in a healthy limb.
This mechanism creates a more natural stride and allows users to do things that are not possible with normal prosthesis, such as run or go up and down steps and inclines in a natural way.
While we're not quite at the point of "The Six Million Dollar Man" bionics, exoskeleton technology is starting to show real promise in helping people with disabilities.
Check out the video above to see the bionic leg in action.