I'm 33 from NYC and am in the process of planning my first Elk hunt for this September. I believe myself to be in good shape and realized yesterday that doesn't mean anything. I do cardio and lift weights roughly 3-4 days a week. Yesterday I decided to crank up the incline on the tread mill to the max and the speed to roughly 3.5 MPH. I was able to get through it, and could have gone longer but it was a lot more difficult than I thought. I believe my workouts are about to drastically change and I will incorporate this type of workout a lot more and will wear a weight vest to try and mimic the real thing. Hard to really prepare for the real thing here in NYC so I guess this will have to do.