We've Been Making Exoskeleton Super-Legs All Wrong

We've Been Making Exoskeleton Super-Legs All Wrong: Earlier this week, a team of scientists revealed he first unpowered wearable exoskeleton that decreases the energy required to walk. The ankle exo, as they call it, is stunningly simple: It acts as an auxiliary calf muscle, using little more than a straightforward spring and a mechanical ratchet that either tightly or loosely grips that spring, depending on the motion of your walking foot. Wearing the ankle exo decreases the energy a person expends when walking by 7 percent.