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3. How is percentage body fat (%BF) estimated?
%BF is measured by a method called Bioelectrical Impedance Analysis (BIA). With the BIA technology, a low
intensity electrical signal is sent through the body. The signal is very low and causes no bodily harm. Depending
on the amount of body fat of the individual, the electrical signal will flow with a different degree of difficulty. The
difficulty with which a signal flows through the body is called electrical impedance. Hence, by measuring the
electrical impedance and applying to the data a proprietary algorithm, %BF can be estimated.
Please be reminded that the %BF estimated with the scale represents only a good approximation of
your actual body fat. There exist clinical methods of estimating body fat that can be ordered by your
physician.
4. Why is it important to monitor percentage Total Body Water (%TBW) in the body?
Water is an essential component of the body and its level is one of the health-indicators. Water makes up
approximately between 50-70% of the body’s weight. It is present proportionally more in lean tissue compared
to fat tissue. Water is a medium for biochemical reactions that regulate body functions. Water provides form
to cells; helps to maintain body temperature; provides moisture to skin and mucosa; cushions vital organs;
lubricates joints and is a component of many body fluids. The amount of water in the body fluctuates with the
hydration level of the body and state of health. Monitoring the level of body water can be a useful tool for one’s
health maintenance. Similar to body fat estimation, the %TBW function provided in this scale is based on BIA.
The estimated %TBW may vary according to your hydration level, that is, how much water you have drunk or
how much you have sweated immediately prior to the measurement. For better accuracy, avoid fluctuation in
hydration level prior to the measurement. The accuracy of the scale in estimating TBW will also decrease with
individuals suffering from diseases that tend to accumulate water in the body.
The optimal %TBW of an individual varies according to age and gender.
The table as follows may be used as a guide:
% Body Fat Range
Optimal % total
Body Water Range
Men
4 à 14 %
70 à 63 %
15 à 21 %
63 à 57 %
22 à 24 %
57 à 55 %
25 % and over
55 à 37 %
Women
4 à 20 %
70 à 58 %
21 à 29 %
58 à 52 %
30 à 32 %
52 à 49 %
33 % and over
49 à 37 %
Please be reminded that the % TBW estimated with the scale represents only a good approximation of
your TBW. There exist clinical methods of estimating body fat that can be ordered by your physician.
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TERRAILLON BODY FAT SCALE – INSTRUCTION MANUAL
EN
Summary of Contents for WINDOW COACH
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