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Peter Wadsworth [[log in to unmask]] writes:

> Sounds like your average Thru-hiker... ;)

That may not be far from the facts.  Just staying alive at moderate
activity levels takes about 2000 calorie.  Add to that crude rules of
thumb an additional ~100calories per mile on flat ground (*15miles per
day= 1500 calorie adder) and 100 calories per 1k' vert (x 3k'/day= 300
calorie adder) and you're up to 3800 calories.  Then there are
significant factors for rain/snow, pack weight, temps below 60F, and
pushing hard that can quickly double or triple that number.

Some summertime backpacking books use an adder of 350-500calories/hour
over & above base metabolism.  Maybe 5-6k is realistic for the average
through hiker but 12k calorie days are likely when pushin' it in light
rain for several hours.

And for a top-tier Olympian who spends hours/day in a pool & training in
a gym!? Completely credible.

dana
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