
Robotic exoskeleton replaces muscle work
"A robotic exoskeleton controlled by the wearer's own nervous system could help users regain limb function, which is encouraging news for people with partial nervous system impairment, say University of Michigan researchers"
"...Initially the wearer's gait was disrupted because the mechanical power added by the exoskeleton made the muscle stronger. However, in a relatively short time, the wearers adapted to the new strength and used their muscles less because the exoskeleton was doing more of the work. Their gait normalized after about 30 minutes."
One of the most advanced exoskeletons in the world is the Japanese HAL robotic suit...

Of course, it was inevitable that the Pentagon would show interest...
Pentagon to Develop Super-Suits