If you happen to have a couple of gladii (yep, that's the plural of gladius) lying around, or even if you haven't but can get hold of a couple of short, hefty sticks, you've got yourself a total body workout that will challenge your coordination and teach your body to move in entirely new ways. The fitness benefits of training with weapons is something we've talked about before, plus it's a lot more fun than any workout has any right to be! Add EC, coz, you want to know what it's like to be in the midst of a massive battle.
Extra Credit: 1 minute rest between sets.