Omron HBF-400 Useful Information, What is Body Fat Percentage?, Cause of Fluctuations

USEFUL INFORMATION

What is Body Fat Percentage?

Body fat percentage refers to the amount of body fat mass in regards to the total body weight described in a percentage.

This OMRON Fat Loss MONITOR with Scale will provide your specific body fat percentage and body weight. It is also an excellent tool to estimate your body fat percentage and measure body weight on

a continuous schedule. Body fat percentage (%) = {Body fat mass (pound) / Body weight (pound)} ⋅ 100

Body fat readings may be affected by the change of water content in

the body. A person's hydration level and blood circulation may have an

Body

Weight

Fat mass

Fat-free mass

Bones

Blood

Muscles

Water

effect on their body fat reading. In the table below are some situations which could affect the reading.

Cause of Fluctuations	Examples of Fluctuation
Water and food intake	1 to 2 hours after breakfast, lunch, or dinner
	After taking a bath or shower, immediately after
Changes in blood circulation	exercising, in extreme environments (warm or cold),
	during illness or extreme fatigue

Principles of Body Fat Percentage Calculation

The OMRON Fat Loss MONITOR with Scale estimates the body fat percentage by the Bioelectrical Impedance (BI) method.

What is the Bioelectrical Impedance Method?

Muscles, blood vessels and bones are body tissues having a high water content that conduct electricity easily. Body fat is tissue that has little electrical conductivity. The Fat Loss MONITOR with Scale sends an extremely weak electrical current of 50 kHz and less than 500 µA through your body to determine the amount of fat tissue.

This weak electrical current is not felt while operating the Fat Loss MONITOR with Scale. Correct posture and consistent measuring conditions need to be maintained for the best results.

How to estimate the body fat percentage.

DXA (Dual Energy X-Ray Absorptiometry) has been the established method for accurate evaluation of body composition. OMRON has used research information from several hundred people using the DXA method to develop the formula by which the Fat Loss MONITOR with Scale works. The body fat mass and body fat percentage is calculated by a formula that includes five factors:

electrical resistance, height, weight, age and gender.

What is the DXA method?

The DXA method uses two different frequency X-Rays and rates of absorption of the body and determines the value based on the difference between the two. OMRON has collected information on people from 10 to 80 years of age using this method.

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