2
WS 200 BT
Water percentage
Body water % is an important indication of the overall «well being»
of human being as water is the single most important component
of body weight and represents more than half (about 60 %) of the
total weight.
Research shows that 57 % body water is optimum, but this
depends on the individual and normally there is no problem if the
reading is 10 % higher or lower.
The body water % is greater in childhood (at birth it varies from 70-
77 %) and it decreases with age (old people might have a body
water of 45-55 %). Women (usually having more adipose tissue
than men), have a water ratio of about 55-58 % while men have
about 60-62 % of it.
With the increase of fat deposits, obese people also have a lower
body water % than lean people. In general, body water % is an
overall composite number. Below 40 % would normally be seen
as too low, and above 70 % as too high. Human beings excrete a
given quantity of water every day. This, however, must be regu-
larly replaced, a water loss of about 10 % of the body weight, may
put our health condition at risk.
So giving the body water % as a reading on the body fat scale
gives an indication to the user if there are possible problems, in
which case they would probably wish to consult their doctor.
Body weight variations that take place in a few hours are completely
normal and are due to water retention, since the extra-cellular water
(which includes interstitial fluid, plasma, lymph and transcellular
fluid) is the only compartment subject to such rapid variations.
Muscle percentage
The muscle percentage is normally within the following ranges:
Bone mass
Our bones are subject to the natural development, degeneration
and aging processes. Bone mass increases rapidly in childhood
and reaches its maximum between 30 and 40 years of age. Bone
reduces slightly with increasing age. You can reduce the degen-
eration with nutrition and regular exercise. You can also strength
your bone structure with appropriate muscle building. There is no
recognized guidelines or recommendations related to bone mass
measurement.
Attention:
Please do not confuse bone mass with bone density.
Bone density can be determined only by means of a medical
examination (e.g. computer tomography, ultrasound). It is there-
fore not possible to draw conclusions concerning changes to the
bones and bone hardness (e.g. osteoporosis) using this scale.
BMR
The basal metabolic rate (BMR) is the amount of the energy
required by the body at complete rest to maintain its basic func-
tions (e.g. while lying in bed for 24 hours). This value largely
depends on weight, height and age. It is displayed on the diag-
nostic scale in kcal/day units using the scientifically recognized
Harris-Benedict formula.Your body requires this amount of energy
in any case and it must be reintroduces into your body in the form
of nutrition. If you take on less energy over long term, this can be
harmful to your health.
2. Suggestions for Use
Place the scale on a flat, hard surface. Soft, inaccurate flooring
(e.g. rugs, carpets, linoleum) can cause the scale to give
uneven reading of your weight.
Step onto the scale with your feet parallel and weight equally
distributed.
Stand still while the scale measures your weight.
It is important to weigh yourself with dry, bare feet, correctly
positioned on the electrodes. Moreover, for the scale to work
properly, avoid your legs touching.
The scale is safe to use as a simple scale by everyone being
powered by 4 x 1.5 V alkaline batteries; size AAA. However,
the following people should not perform a body fat or body
water measurement:
- pregnant women
- people on cardiovascular medication
- those fitted with a pace-maker or other forms of electronic,
medical equipment
- those with a temperature
- children under the age of 10
- those in dialysis, with oedemas on their legs, people with
dimorphism or suffering from osteoporosis
Men
Excellent Good
Normal
Over-
weight
Obese
Age
Data in %
19
12.0
12.1-17.0 17.1-22.0 22.1-27.0 > 27.1
20-29
13.0
13.1-18.0 18.1-23.0 23.1-28.0 > 28.1
30-39
14.0
14.1-19.0 19.1-24.0 24.1-29.0 > 29.1
40-49
15.0
15.1-20.0 20.1-25.0 25.1-30.0 > 30.1
50
16.0
16.1-21.0 21.1-26.0 26.1-31.0 > 31.1
Men
Age
low
normal
high
10 - 14
< 44%
44 - 57%
> 57%
15 - 19
< 43%
43 - 56%
> 56%
20 - 29
< 42%
42 - 54%
> 54%
30 - 39
< 41%
41 - 52%
> 52%
40 - 49
< 40%
40 - 50%
> 50%
50 - 59
< 39%
39 - 48%
> 48%
60 - 69
< 38%
38 - 47%
> 47%
70 - 100
< 37%
37 - 46%
> 46%
Women
Age
low
normal
high
10 - 14
< 36%
36 - 43%
> 43%
15 - 19
< 35%
35 - 41%
> 41%
20 - 29
< 34%
34 - 39%
> 39%
30 - 39
< 33%
33 - 38%
> 38%
40 - 49
< 31%
31 - 36%
> 36%
50 - 59
< 29%
29 - 34%
> 34%
60 - 69
< 28%
28 - 33%
> 33%
70 - 100
< 27%
27 - 32%
> 32%
