[pct-l] hiking calories

[Hikes and Bikes]

My latest newspaper insert (Rejuvenate) from a local hospital says that "an 11-pound backpack increases the number of calories you burn by about 6 percent" when hiking.  Is there any data on this for weights and miles hiked?

Lost and Found

"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, Guinness in one hand, steak in the other, yell 'Holy Sh**, What a Ride!"