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Date: | Tue, 26 Nov 2002 20:47:46 -0800 |
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Possible, no other land animal can out distance a
human
in total miles, although my gut says that we probably
used our big brains and took a less painful approach
to hunting.
--- Hilary McClure <[log in to unmask]> wrote:
> In the older longer version of Art's essay on
> evolutionary fitness he
> talks about power laws or curves and chaos, that the
> details of physical
> activity are chaotic, but when distributed on a
> curve you would see lots
> of low level activity and rest and small amounts of
> high intensity
> activity, and that you would not see the
> long-duration, steady-state,
> medium-level activity of the modern "aerobic"
> jogger. Recently I've been
> reading how bipedal movement is much more energy
> efficient than
> four-legged, that our upright posture and
> hairlessness gives us an
> additional advantage in heat dissipation over
> four-footed prey, that the
> hair on our heads insulates us from the heat of the
> sun on our scalps,
> and that all of these together would have enabled us
> to run down
> four-legged prey in the hot mid-day savannah sun by
> basically running
> somewhat of a marathon. The prey would be faster
> initially, but we would
> eventually outrun and exhaust them. This is making
> me wonder whether a
> long, couple-hour jogging session might have some
> benefit and whether it
> might fit into the "evolutionary model" of physical
> activity, as DeVany
> puts it, if done only once or twice a week.
>
> Any comments?
>
> Hilary McClure
> Danville, VT
>
>
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