Thanks for the info Slayer.
It may be lame but I started doing the treadmill at full incline and 3.5-4 mph to try and get some better endurance.
I was running a few miles or doing sprints a few times a week but then I'd still get winded hiking so I'm going to switch it up to hiking on the treadmill.
I told my fiance that I'm going to start doing it with a loaded pack and she couldn't hold back the laughter!
Hey, I can't get out and hike everyday but I can at least train when I get home