[pct-l] Burning Calories

[chwillet at indiana.edu (Christopher Willett)]

I've heard 3500 calories is a pound of pure body weight (i.e, not fluid
loss).  I tried to take in 4-5000 calories a day when hiking this summer. 
I went from 215 to 193, then gained 7 pounds in the first two weeks of 
being back.  A lot of fluid gain.  The weight loss would have been a lot 
greater, but I put on a lot of muscle in my legs over the summer. I 
was skinny enough at the end of the summer that you could see my 
ribs easily (nice monument shot).  As I am a little over 6'4", 193 
lbs isn't terribly light for me.  I just didn't have any fat on me 
to hide my ribs.

Chris

On Thu, 2 Oct 2003, Richard wrote:

> 1 LB OF BODY weight (fat?) is about 3200 cal if I recall
> correctly...anyone have a definitive number?
> 
> Richard
> 
> At 10:33 AM 10/2/03 -0400, Rob Rathmann wrote:
> >Fellow Wanderers-
> >
> >In the midst of planning my '04 thru-hike (and training for the Atlanta
> >marathon), I started thinking about how many calories a hiker burns during
> >an average day of hiking.  The magnitude of the numbers BLEW ME AWAY.  The
> >equations depend on something called the Mcoefficient(calories / minute /
> >kg)- you can find a good list of M coefficients for different activities at
> >http://www.fitnesslogs.com/calories3.htm  Here are 2 examples:
> >
> >Hiking, cross country for 8 hours: 4572.21 Calories
> >Walking, upstairs for 8 hours: 6081.04 Calories
> >
> >THAT IS BURNING BETWEEN 4572.21-6081.04 Calories DURING AN 8 HOUR HIKE!!!
> >
> >Even if you carry as much food as possible and gorge yourself at every trail
> >town, you must develop a rather large caloric deficit after 4 months.  Has
> >anyone measured their body mass index before and after a thru-hike?
> >
> >Equations used:
> >Calories_burned= Mcoefficient * Mass * Minutes
> >I used 2 different Mcoefficients: .1 (Hiking, cross country), and .133
> >(Walking, upstairs).
> >I used a mass of 175 lbs + 35 lb pack, converted to kilograms (1 pounds =
> >0.45359237 kilograms).
> >I used 8 hours (480) minutes for the time hiking.
> >
> >
> >Carcinomad '04
> >
> >
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----------------------
Christopher Willett
Department of Mathematics
Indiana University
831 East Third Street
Bloomington, IN. 47405-7106
(812)-855-1883
chwillet@indiana.edu
mypage.iu.edu/~chwillet