The lowest food requirement during the entire 24 hours is during the
time of sleep, when there is no activity and food is required for only
the bodily functions that go on during sleep. Sitting requires more food
than sleeping, standing, a still greater amount, and walking, still
more, because of the increase in energy needed for these activities.
In a rough way, the various occupations for both men and women are
classified under three different heads: Light Work, Moderate Work, and
Heavy Work. It is necessary that these be understood in examining
this table.
TABLE III
CALORIES PER POUND FOR 24 HOURS FOR ADULTS
Occupation Calories
Sleeping............................... 12
Sitting................................ 14
Standing............................... 17
Walking................................ 20
Light work............................. 22
Moderate work.......................... 24
Heavy work............................. 27
Those considered as doing light work are persons who sit or stand at
their employment without any great degree of activity. They include
stenographers, dressmakers, milliners, teachers, clerks, shoemakers,
tailors, machine operators, elevator operators, and conductors.
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