Human energy demands
How much energy do we need to
take from food in each 24 hours? The answer depends very much on the
sort of people we are particularly on our age and our work.
Some
examples of muman energy needs are shown in the following table:
| |
kilojoules per day |
|
| BOYS AND GIRLS |
|
|
| 0 -1 year |
4200 |
|
| 2 - 6 years |
6300 |
|
| 7 -10 years |
8400 |
|
| |
|
|
| TEENAGERS |
Boys |
Girls |
| 11 -14 years |
11500 |
11500 |
| 15 -19 years |
14700 |
10500 |
| |
|
|
| ADULTS |
Men |
Women |
| Lying in bed all day |
7400 |
6300 |
| Working 8 hours a day |
|
|
| Light work |
12000 |
9500 |
| Heavy work |
15000 |
12500 |
| Very heavy work |
21000 |
|
| |
|
|
| PREGNANCY |
|
|
| Early months |
|
10000 |
| Late months |
|
11500 |
| Nursing the baby |
|
12500 |
| |
|
|
| OTHER ACTIVITIES |
kilojoules per minute |
|
| Resting in bed |
4 |
|
| Washing, shaving, dressing |
14 |
|
| Walking |
21 |
|
| Standing |
7.5 |
|
| Cycling |
28 |
|
| Hewing coal |
28 |
|
