How to calculate the percentage of body fat?
Contents :
Fat :
The fat in the Human
body is considered to be a beneficial element to a good extent in the human
body, as it provides the human with the energy his body needs, and it is
possible for the human body to consume it directly, and it is also possible to
store it in certain places in the body until it needs it, and this is The
secret of the suffering of some people is that the increase in the accumulation
of fat in the human body leads to the accumulation of it in a way that harms
the human being and causes him to develop obesity that cannot be sustained.
There are two
types of fats: animal fats, vegetable fats, and humans get the first type from
many sources, including meat, butter, milk, and others, while the second type
of fats gets from different sources, including sesame, olives, cotton, corn,
and dizziness. Sun, soybeans, nuts, almonds, etc.
How tocalculate the percentage of body fat:
As for the
amount of fats that a person must eat, it is a quantity that cannot be precisely
determined, but what is known and approximate is that an adult person must eat
between fifteen and thirty-five grams of fat per day, but that depends mainly
on Many factors, foremost of which is the amount of energy a person needs
daily. A person usually needs to know the percentage of fat in his body, and
for this has been devised several ways to help to reach this goal, including:
This method is
known as hydrostatic weight, and the weight of body fat can be measured by
immersing the human body in water, and then measuring the entire amount of
water that has been displaced, and this method of measuring the proportion of
fat has a higher cost than other methods.
Infrared method
Fat is measured
by placing a beam of infrared radiation on the body, so that these rays are
reflected from the muscles while absorbed by the fat.
X-ray method
This method is
one of the modern methods of measuring the percentage of fats in the human
body, as X-rays with dual emitters are used for this purpose, as one of them is
absorbed more, and then the images are processed using a computer.
Average density
This method is
based on the fact that the fat tissue in the human body has a lower density
than each of the bones and muscles of the body, hence two equations have developed
to calculate the average are: Prozyk equation: fat ratio = ((4.57 / density)
-4.142) * 100%. Siri equation: = ((4.57 / density) -4.50) * 100%.
Through thebody mass index
The following
two equations: Child fat percentage = (1.51 * index) - (0.7 * age) - (3.6 *
type) +1.4 adult fat percentage = (1.2 * indicator) - (0.23 * age) - (10.8 *
type) - 5.4 As for gender, for males it is (1), and for females it is (0).
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