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 fluc-
tuation 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:
Men
Women
Please be reminded that the % TBW estimated with the scale represents only a good approxima-
tion of your TBW. There exist clinical methods of estimating body fat that can be ordered by your
physician.
6. When should I use the scale's body fat and total body water functions?
For maximum accuracy and repeatability, it is recommended that the scale's body fat and total body water
functions be used at approximately the same time of the day, e.g. before breakfast in the morning. It is
also a good practice to avoid swings in hydration level of the body prior to the measurement. Establishing
your own baseline value of %BF and %TBW and track their changes is better than merely comparing your
%BF and %TBW value to the population's normal value.
7. What is the Visceral Fat Index?
Visceral fat, sometimes also called abdominal fat, is the fat that surrounds your abdominal organs such as
the liver, pancreas and kidneys. Compared to "normal" fat (subcutaneous fat), visceral fat is stored deeper
under the skin. An index between 1 and 9 indicates a healthy level of visceral fat. Above 9, it indicates an
excess level that can cause health problems.
8. What is the purpose of the "Basal Metabolic Rate" function?
The Basal Metabolic Rate shown on the scale represents the energy required to meet the body's vital
needs at rest. It is calculated based on age, gender and body fat. Depending on the physical activity, a
coefficient must be applied in order to know the daily calorie needs.
Below are the coefficients to apply:
• Sedentary (no activity or very little exercise) : MB x 1.2.
• Slightly active (exercise between 1 and 3 times a week): MB x 1.375.
10
% Body Fat Range
4 to 14 %
15 to 21 %
22 to 24 %
25 % and over
4 to 20 %
21 to 29 %
30 to 32 %
33 % and over
Index
1-9
Normal
EN
Optimal % total
Body Water Range
70 to 63 %
63 to 57 %
57 to 55 %
55 to 37 %
70 to 58 %
58 to 52 %
52 to 49 %
49 to 37 %
9-15
>15
High
Too High