Ever heard of "Total Recall"
Yeah. Never did figure out if it was all real or he'd just gone Schizo. This woman would have been ideal for the outdoor scene on mars.
@Task
I can see where you're coming from in terms of friction with the ground when you're trying to walk, which could account for a slower walk, but then they just jumped around anyway. Friction, air or ground, can't account for slow arm movements.
http://www.youtube.com/watch?v=wdMvQTNLaUE&mode=related&search=