Re: [Phys-l] Food Liar's calorie chart

[Brian Whatcott <betwys1@sbcglobal.net>]

Stefan Jeglinski wrote:
> One can further estimate that 200lb displaced over a mile is 
> 1,056,000 ft-lbs, or 342 nutritional calories (according to one 
> on-line calculator), yielding a factor mu (F = mu.N) of .43 for 
> jogging, and .29 for walking.
> Stefan Jeglinski
Equating body weight with force in the direction of displacement
is suspect on the face of it.
   I have also read suggestions that the energetic cost of moving is
proportional more to time than to distance, so that I read of folks
being encouraged to walk at any speed for set time periods
as a slimming strategy.

Brian W