Similar requirements
for laborious work at -10 deg. Fahr. (which is a high average plateau
temperature) are 8500 calories to produce 11,094 foot-tons of work. The
actual Summit ration would generate 4889 calories, equivalent to 6608
foot-tons of work. These requirements are calculated for total absorption
of all food-stuffs: but in practice, by visual proof, this does not take
place: this is especially noticeable in the case of fats, a quantity of
which were digested neither by men, ponies, nor dogs.
Several things go to prove that our ration was not enough. In the first
case we were probably not as fit as we seemed after long sledge journeys.
There is no doubt that when sledging men developed an automaticity of
certain muscles at the expense of other muscles: for instance, a sledge
could be hauled all day at the expense of the arms, and we had little
power to lift weights at the end of several months of sledging. In
relation to this I would add that, when the relief ship arrived in
February 1912, four of us were at Cape Evans, but just arrived from three
months of the Polar Journey. The land party, we four among them, were
turned on to sledge stores ashore. This in practice meant twenty miles
every day dragging a sledge; a good deal of 'humping' heavy cases, from
five o'clock in the morning to very late at night; with uncertain meals
and no rests.
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