Power Armor is a mecha term commonly used to describe full body armor that not only protects, but enhances physical capabilities. Unlike regular body armor, this includes some form of powered exoskeleton or power suit to act as mechanical muscle, reducing the user's amount of work to do just about anything. A common form of armor in science fiction and tokusatsu, especially in space environments - a popular example is Samus Aran.
One of the first appearances of power armor in science fiction was in the novel Starship Troopers (1959).
