Some returning soldiers from Iraq and other battlefields require a state-of-the-art prosthetic device if injuries have claimed a foot, ankle or leg.

Prosthetics are becoming more advanced all the time. In that regard, U.S. researchers have unveiled a new computerized prosthetic ankle and foot that mimics a real human ankle due to a self-contained power source along with multiple springs inside the unit.

Having a lower-body prosthetic that shows no signs of a limp would be a breakthrough for the self-confidence of amputees, and battle-tested and injured soldiers deserve no less.