[pct-l] Backpack Packing strategies...

[Glen Hoshizaki]

On page 37 of the paper the investigators defined energy cost as oxygen consumption rate per walking speed, all normalized over total mass (body mass plus mass carried). So for any given walking speed (at least within a certain range) even though oxygen consumption increased with increasing load, it did so less than proportionately.

Or am I completely confused?

Glen

-----Original Message-----
From: pct-l-bounces at backcountry.net [mailto:pct-l-bounces at backcountry.net] On Behalf Of CHUCK CHELIN
Sent: Thursday, May 05, 2011 8:31 PM
To: Yoshihiro Murakami

Good evening, Yoshihiro,

I have a question about your Interesting Point No. 1:  If more force is
necessary to move a large mass compared to a small mass; and if energy is in
terms of force applied over a distance, how can it be as you say that moving
a large mass over a distance requires less energy than moving than a small
mass over that same distance?

Steel-Eye