Exoskeletons

NASA is developing exoskeletons astronauts could don to increase their physical abilities during spacewalks.  The contraptions would fit outside the spacesuits and multiply the strength of the astronauts' arms and legs, allowing them to accomplish more work per excursion.

The exoskeletons could have important Earthly applications, as well.  Fitted to the needs of paraplegics, they could substitute for legs that don't work, providing the strength and control to allow the person to walk.  Exoskeletons could be similarly useful on paralyzed arms.