Beurer BF 400 Signature Line Gebrauchsanweisung Seite 13

Body fat contains relatively little water, therefore body water
content may be below the standard values in persons with a
high body fat percentage. On the other hand, endurance ath-
letes may exceed the standard values due to having low levels
of fat and a high muscle percentage.
The body water calculation performed using this scale is not
suitable for drawing medical conclusions, for example in the
case of age-related water retention. Consult your doctor where
necessary. A high body water content is generally desirable.
Muscle percentage
The muscle percentage is normally within the following ranges:
Male
Age Low
10 –14 <44 %
15 –19 <43 %
20 – 29 <42 %
30 – 39 <41 %
40 – 49 <40 %
50 – 59 <39 %
60 – 69 <38 %
70 –100 <37 %
Female
Age Low
10 –14 <36 %
15 –19 <35 %
20 – 29 <34 %
30 – 39 <33 %
40 – 49 <31 %
50 – 59 <29 %
60 – 69 <28 %
70 –100 <27 %
Bone mass
Like the rest of our body, our bones are subject to natural
growth, shrinking and ageing processes. Bone mass increa-
ses rapidly during childhood and reaches its peak between the
ages of 30 and 40. As we age, our bone mass then begins to re-
duce. You can combat this reduction to an extent with the help
of a healthy diet (particularly calcium and vitamin D) and regular
physical exercise. The stability of your skeleton can be further
increased by means of targeted muscle build-up. Please note
that this scale does not identify the total bone mass, but rather
just the mineral content of the bone (without water content and
without organic substances). It is very di cult to influence the
bone mass, although it does fluctuate slightly within the scope
of influencing factors (weight, height, age, gender). There are
no recognised guidelines or recommendations.
IMPORTANT:
Please do not confuse bone mass with bone density.
The bone density can only be determined by means of a me-
dical examination (e.g. computer tomography, ultrasound). It
is therefore not possible to draw conclusions on changes to
bones and bone hardness (e.g. osteoporosis) using this scale.
BMR
The basal metabolic rate (BMR) is the amount of energy requi-
red by the body at complete rest in order to maintain its basic
Normal High
44 – 57 % >57 %
43 – 56 % >56 %
42 – 54 % >54 %
41– 52 % >52 %
40 – 50 % >50 %
39 – 48 % >48 %
38 – 47 % >47 %
37 – 46 % >46 %
Normal High
36 – 43 % >43 %
35 – 41 % >41 %
34 – 39 % >39 %
33 – 38 % >60 %
31– 36 % >60 %
29 – 34 % >60 %
28 – 33 % >60 %
27 – 32 % >60 %
functions (e.g. when lying in bed 24 hours a day). This value is
primarily dependent on weight, height and age.
It is displayed on the diagnostic bathroom scale in the kcal/
day unit and is calculated using the scientifically recognised
Harris-Benedict equation.
This is the amount of energy that is required by your body un-
der all circumstances and must be re-supplied to the body in
the form of food. If your energy intake is below this level in the
longer term, this can result in damage to health.
AMR
The active metabolic rate (AMR) is the amount of energy that
the active body consumes each day. An individual's energy re-
quirement increases when the level of physical activity increa-
ses; the diagnostic bathroom scale calculates this by means of
the activity level (1-5) that has been entered.
To maintain the current weight, the energy that the body uses
must be replaced in the form of food and drink.
If less energy is taken in than is used over a long period of time,
the body primarily takes the di erence from the fat stores, with
resulting weight loss. However, if the amount of energy taken in
exceeds the calculated active metabolic rate (AMR) for a longer
period, the body cannot burn o the excess energy. The excess
is stored in the body as fat, leading to weight gain.
Temporal context of the results
NOTE:
Please note that only the long-term trend is important. Brief
deviations in weight within a few days are normally caused by
loss of fluids.
The interpretation of the results is based on changes in total
body weight, percentage of body fat, body water and musc-
le content, as well as on the length of time over which these
changes occur.
Rapid changes within the scope of a few days are to be consi-
dered separately from medium-term changes (in the scope of
weeks) and long-term changes (months).
It can be said as a basic rule that short-term changes in weight
are almost entirely changes in water content, whereas medium-
term and long-term changes may also relate to the fat percen-
tage and the muscle percentage.
• If your weight drops in the short term but your body fat
percentage increases or stays the same, you have only
lost water, for example following a training session, visit to
the sauna or a diet aimed only at fast weight loss.
• If your weight increases in the medium term and your body
fat percentage drops or stays the same, you may have
built up valuable muscle mass.
• If your weight and body fat percentage both fall at the
same time, then your diet is working – you are losing fat
mass.
• Ideally, you should support your diet with physical activity,
fitness or strength training. This enables you to increase
your muscle percentage in the medium term.
• Body fat, body water and muscle percentages should not
be totalled (muscle tissue also contains components made
of body water).
8.3 Other functions
User assignment
It is possible to assign up to 10 scale users for a diagnostic
measurement (barefoot).
For a new measurement, the scale assigns the measurement to
the user whose most recently saved measurement falls within
+/- 3kg. If two or more users have potentially been recognised,
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