14
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 following chart and table may be used as a guide:
Variation of % Total Body Water with Age and
Gender:
Source: University of Illinois Medical Center, Chicago, USA.
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.
4. 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.
80
70
60
50
0
3
6
9
12
5
10
15
20
3
4
5
6
months
years
decades
T
otal boby water (% of body weight)
men
women
% Body Fat Range Optimal % total
Body Water Range
4 to 14%
70 to 63%
15 to 21%
63 to 57%
22 to 24%
57 to 55%
25% and over
55 to 37%
4 to 20%
70 to 58%
21 to 29%
58 to 52%
30 to 32%
52 to 49%
33% and over
49 to 37%
Men
Women
TFX NOYO
notice TFX NOYO 22/08/07 13:31 Page 14
TFA AURA TOUCH
