5
INFORMATION ON BODY COMPOSITION
Bioelectrical Impedance Method
Muscles, blood vessels and bones have a high water content
that conduct electricity easily.
Body fat does not hold water, therefore it has low electrical
conductivity.
The Fat Loss Monitor sends an extremely low-level
electrical current of 50 kHz and 500 µA through your
body to determine the amount of fat tissue. This weak
current is safe and not felt while operating the Fat Loss
Monitor.
Body Fat Percentage
Body fat percentage refers to the amount of body fat mass as part of the total body
weight.
Body Fat
Fat-free mass
•
Bones
•
Blood
•
Muscles
•
Water
Body
Weight
Body fat % = (Body Fat Mass in Pounds / Body Weight in Pounds) x 100
Estimated Body Fat Percentage
Hydrodensitometry, or underwater weighing, has been an established method for accurate
evaluation of body composition. Omron has used research information from several
hundred people using the underwater method to develop the formula by which the Fat
Loss Monitor works.The body fat mass and body fat percent is calculated by a formula
that includes five factors: electric resistance, height, weight, age, and gender.
The Fat Loss Monitor displays the estimated value of body fat percentage by the
Bioelectrical Impedance (BI) method and indicates the Body Mass Index (BMI)
range with the BMI classification bar.
Body Fat Ranges for Adults
* Based on gallagher et al., American Journal of Clinical Nutrition, Vol.72, Sept. 2000
Gender
Age
Low
Normal
High
Very High
Female
20-39
<
21.0
21.0-32.9
33.0-38.9
≥
39.0
Female
40-59
<
23.0
23.0-33.9
34.0-39.9
≥
40.0
60-79
<
24.0
24.0-35.9
36.0-41.9
≥
42.0
Male
20-39
<
8.0
8.0-19.9
20.0-24.9
≥
25.0
Male
40-59
<
11.0
11.0-21.9
22.0-27.9
≥
28.0
60-79
<
13.0
13.0-24.9
25.0-29.9
≥
30.0
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