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Muscle percentage:
The muscle percentage (%) is normally within the following ranges:
Man
Age
low
normal
10–14
<44
44–57%
15–19
<43
43–56%
20–29
<42
42–54%
30–39
<41
41–52%
40–49
<40
40–50%
50–59
<39
39-48%
60–69
<38
38–47%
70–100
<37
37–46%
Bone mass
Like the rest of our body, our bones are subject to natural growth, shrinking and ageing processes. The bone mass
increases rapidly during childhood and reaches its peak between the ages of 30 and 40. As we age, our bone
mass then begins to reduce. 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 the skeleton can be further increased by
means of targeted muscle build-up. Please note that this scale does not identify the calcium content of the bones;
instead, it calculates the weight of all the components that make up the bones (organic matter, inorganic matter
and water). It is very difficult to influence the bone mass, although it does fluctuate 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 medical examination (e.g. computer tomography, ultra-
sound). It is therefore not possible to draw conclusions on changes to bones and bone hardness (e.g. osteoporo-
sis) using this scale.
AMR
The active metabolic rate (AMR) is the amount of energy required daily by the body in its active state. The energy
consumption of a human being rises with increasing physical activity and is measured on the Diagnostic bathroom
scale in relation to the degree of activity entered (1– 5).
To maintain your existing weight, the amount of energy used must be reintroduced into the body in the form of
food and drink. If less energy is introduced than is used over a longer period of time, your body will obtain the
difference largely from the amount of fat stored and your weight will decrease. If, on the other hand, over a longer
period of time more energy is introduced than the total active metabolic rate (AMR) calculated, your body will be
unable to burn off the excess energy, and the excess will be stored in the body as fat and your weight will increase.
Body mass index (BMI)
The body mass index (BMI) is a number that is often called upon to evaluate body weight. The figure is calculated
from body weight and height. The formula is: body mass index = body weight : height². The measurement unit for
BMI is [kg/m²]. According to the BMI, weight is classified for adults (20 years and over) using the following values:
Category
Underweight
Normal weight
Overweight
Obese (overweight)
Woman
high
>57%
>56%
>54%
>52%
>50%
>48%
>47%
>46%
Severely underweight
Underweight
Slightly underweight
Overweight
Class I obesity
Class II obesity
Class III obesity
14
Age
low
normal
10–14
<36
36–43%
15–19
<35
35–41%
20–29
<34
34–39%
30–39
<33
33–38%
40–49
<31
31–36%
50–59
<29
29–34%
60–69
<28
28–33%
70–100
<27
27–32%
BMI
< 16
16-16.9
17-18.4
18.5-25
25.1-29.9
30-34.9
35-39.9
≥ 40
high
>43%
>41%
>39%
>38%
>36%
>34%
>33%
>32%
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