Omron HBF 306C - Manual (Page 5)

5
USEFUL INFORMATION
Bioelectrical Impedance Method
Muscles, blood vessels and bones are body tissues having
a high water content that conduct electricity easily.
Body fat tissue has lower electric 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
electrical 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 described as a percentage.
Body Fat %
Fat-free mass
• Bones
• Blood
• Muscles
• Water
Body
Weight
Body fat percentage (%) =
(Body Fat Mass in Pounds / Body Weight in Pounds) x 100
Estimated Body Fat Percentage
Hydrodensitometry, or underwater weighing, has been the 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.
Body Mass Index (BMI)
BMI is an internationally used index to show body composition by determining the
balance between the height and the weight.
Body Mass Index (BMI) Formula
US - Calculated using pounds and inches with this equation:
(weight in pounds x 703) / height in inches / height in inches
Metric – Calculated using kilograms and meters:
weight in kilograms / height in meters / height in meters
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.
HBF-306C Rev D 2/7/06 9:14 AM Page 5