I was at the Montana RenFest this past weekend - love a good Ren Faire! - chatting with some of these guys. They were part of some knightly order talking both about the ceremony as well as the combat, where they either don their armor then beat the crap out of each other with wooden weapons or fence with fencing sword + dagger or dual fencing swords. None of these guys were - how shall we say? - particular fit people, but they get out there every weekend (and more) getting their exercise. Their enthusiasm for what they do was contagious.