Body Fat

Girls but also and mens in the gym, on a variety of group trainings, and those outside them often wonder - what is my body fat percentage?
Body Fat (%) is the ratio of body fat and overall weight. Fatty tissue is an essential fat and stored fat.

There are several ways of measuring the body fat, differ primarily in the accuracy, and the accessibility and price.
I will introduce to you today one of them:

Underwater Weighing

Underwater weighing is considered the gold standard in the measurement of the subcutaneous fat, even if it some more modern and reliable method made obsolete.
Based on the fact that the fat much more better float than muscle. The reason is that fat has a much lower density than muscle.

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First, the person is weighed on dry land. Then he sits in a special tank. While sitting on a special scale in the tank, the tank is lowered into the water, and the person is measured exhaled all the air. The procedure is repeated 3 times, and as a result is averaged measurements. Thereafter, the data incorporated into the special equation to determine the mass without fat.

The disadvantages of this method are contained in a number of assumptions that must be taken into consideration. First, a person can never exhale all the air from his lungs, so the supposed amount of air remains in the lungs should be assumed (the possibility of error, because 0,5l air can change the result of even 3-5%).

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Then, it should be an estimate of bone density, muscle and fat tissue, and it varies according to race, age, level of activity of the person, and so on. Many of these assumptions are incorrect.

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