Operating Instructions; What Is Body Fat Percentage - Omron BF508 Instruction Manual

Information on Body Composition
What is BMI (Body Mass Index)?
BMI uses the following simple formula to indicate the ratio between weight and height of a person.
The OMRON BF508 uses the height information stored in your personal profile number or when entering
information in the Guest Mode to calculate your BMI classification.
If the fat level revealed by BMI is higher than the international standard, there is an increased likelihood of common
diseases. However, not all types of fat can be revealed by BMI.

What is Body Fat Percentage?

Body fat percentage refers to the amount of body fat mass in regards to the total body weight expressed as a
percentage.
Body fat percentage (%) = {Body fat mass (kg) / Body weight (kg)} × 100
The BF508 uses the BI method to estimate your body fat percentage.
Depending on where the fat is distributed in the body, it is classified as visceral fat or subcutaneous fat.
What is Visceral Fat Level?
Visceral fat = fat surrounding internal organs
Too much visceral fat is thought to be closely linked to increased levels of fat in the
bloodstream, which can lead to common diseases such as hyperlipidemia and
diabetes, which impairs the ability of insulin to transfer energy from the bloodstream
and using it in cells. In order to prevent or improve conditions of common diseases,
it is important to try and reduce visceral fat levels to an acceptable level. People
with high visceral fat levels tend to have large stomachs. However, this is not
always the case and high visceral fat levels can lead to metabolic obesity. Metabolic
obesity (visceral obesity with normal weight) represents fat levels that are higher
than average, even if a person's weight is at or below the standard for their height.
What is Subcutaneous Fat?
Subcutaneous fat = fat below the skin
Subcutaneous fat not only accumulates around the stomach but also around the
upper arms, hips and thighs, and can cause a distortion of the body's proportions.
Although not directly linked to increased risk of disease, it is thought to increase
pressure on the heart and other complications. Subcutaneous fat is not displayed in
this unit, but is included in the body fat percentage.
The reason calculated results may differ from actual body fat percentage
The body fat percentage measured by this unit may significantly differ from the actual body fat percentage in
the following situations:
Elderly people (over 81 years old) / People with a fever / Body builders or highly trained athletes /
Patients undergoing dialysis / Patients with osteoporosis who have very low bone density / Pregnant women /
People with swelling
These differences may be related to changing ratios of body fluid and/or body composition.
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BMI = weight (kg) / height (m) / height (m)
Visceral Fat
Subcutaneous Fat
Spine
Sample Visceral Fat
(MRI image)
Visceral Fat
Subcutaneous Fat
Spine
Sample Subcutaneous Fat
(MRI image)