Beurer BG 13 - Инструкция по эксплуатации - Страница 14

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Muscle percentage:

The muscle percentage (%) is normally within the following ranges:

Man Woman

Age

low

normal

high

Age

low

normal

high

10–14

<44%

44–57%

>57%

10–14

<36%

36–43%

>43%

15–19

<43%

43–56%

>56%

15–19

<35%

35–41%

>41%

20–29

<42%

42–54%

>54%

20–29

<34%

34–39%

>39%

30–39

<41%

41–52%

>52%

30–39

<33%

33–38%

>38%

40–49

<40%

40–50%

>50%

40–49

<31%

31–36%

>36%

50–59

<39%

39-48%

>48%

50–59

<29%

29–34%

>34%

60–69

<38%

38–47%

>47%

60–69

<28%

28–33%

>33%

70–100

<37%

37–46%

>46%

70–100

<27%

27–32%

>32%

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

BMI

Underweight

Severely underweight

< 16

Underweight

16-16.9

Slightly underweight

17-18.4

Normal weight

18.5-25

Overweight

Overweight

25.1-29.9

Obese (overweight)

Class I obesity

30-34.9

Class II obesity

35-39.9

Class III obesity

≥ 40

Results in relation to time 

   Note: 

Remember that only long-term trends are important. Short-term fluctuations in weight over a few days 

are usually the result of a loss of fluid.

The interpretation of the results will depend on changes in your overall weight and body fat, body water and muscle 

percentages, as well as on the period during which these changes take place. Sudden changes within days must 

be distinguished from medium term changes (over weeks) and long term changes (months).

A basic rule is that short term changes in weight almost exclusively represent changes in water content, whereas 

medium and long term changes may also involve the fat and muscle percentages.

• If your weight reduces over the short term, but your body fat percentage increases or remains the same, you 

have merely lost water – e.g. after a training session, sauna session or a diet restricted only to rapid weight loss.

• If your weight increases over the medium term and the body fat percentage falls or stays the same, then you 

could have built up valuable muscle mass.

• If your weight and body fat percentage fall simultaneously then your diet is working – you are losing fat mass.

• Ideally you should support your diet with physical activity, fitness or power training. This way you can increase 

your muscle percentage over the medium term.

• Body fat, body water or muscle percentages should not be added (certain elements of muscle tissue also contain 

body water).

4. Cleaning and care of the unit

The unit should be cleaned occasionally.Clean using a damp cloth, to which you can apply a little detergent if 

necessary.