3. Why is it important to monitor percentage body fat (%BF)?
Weight is a useful indicator but not sufficient to monitor your health. Weight change in itself does not
indicate whether it was the weight of body fat or muscle that had changed. In weight management, it is
desirable that muscle mass be maintained while body fat is lost. Thus, monitoring the percentage fat of the
body is an important step toward successful weight management and body health.
The optimal %BF of an individual varies according to age and gender.
The table as follows may be used as a guide:
Standard for Men
Rating
Low
Optimal
Moderate
High
Standard for Women
Rating
Low
Optimal
Moderate
High
4. 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.
5. 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; cush-
ions 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.
EN
20-29
30-39
< 13 %
< 14 %
14-20 %
15-21 %
21-23 %
22-24 %
> 23 %
> 24 %
20-29
30-39
< 19 %
< 20 %
20-28 %
21-29 %
29-31 %
30-32 %
> 31 %
> 32 %
Age
40-49
50-59
< 16 %
< 17 %
17-23 %
18-24 %
24-26 %
25-27 %
> 26 %
> 27 %
Age
40-49
50-59
< 21 %
< 22 %
22-30 %
23-31 %
31-33 %
32-33 %
> 33 %
> 34 %
60+
< 18 %
24-32 %
26-28 %
> 28 %
60+
< 23 %
24-32 %
33-35 %
> 35 %
9