NASA has a robot called Robonaut 2 operating on the international space station right now. NASA and the Florida Institute for Human and Machine Cognition have announced a spinoff technology from the Robonaut 2 program. The spinoff technology is a exoskeleton called the X1.
The X1 is worn over the legs and runs up the back and around the shoulders. It has multiple joints with 10° of freedom including for motorized joints at the hips and knees and six passive joints allowing for sidestepping, turning, and pointing. The exoskeleton could be used for resistance exercising when in space and can also be used to help paraplegics on earth walk again.