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What is the definition of "Ideal Weight"?

"Ideal Weight" is defined using BMI standards.

Standard Range
Low <18.5
Normal 18.5~24
High 24~27
Very High >27

 

BMI=Weight (kg)/Height(㎡)

*Oserio devices utilize standards set by the Ministry of Health and Welfare

As seen in the chart above, "normal" range is a BMI between 18.5 and 24. A person with a height of 182cm's "ideal weight" will be between 61.3~82.8 kg.

What is the definition of "Ideal Body Fat"?

"Ideal Body Fat" is defined using health risk rather than aesthetics. We recommend keeping your body fat within normal range!
 

Gender Age Low Normal High Very High
Male 10~33 5.0~8.5% 8.6~19.3% 19.4~25.0% 25.1~50.0%
34~49 5.0~11.7% 11.8~22.5% 22.6~27.6% 27.7~50.0%
50~80 5.0~13.7% 13.8~24.5% 24.6~30.2% 30.3~50.0%
Female 10~33 5.0~20.8% 20.9~32.5% 32.6~38.2% 38.3~50.0%
34~49 5.0~23.4% 23.5~35.1% 35.2~40.8% 40.9~50.0%
50~80 5.0~24.4% 24.5~36.1% 36.2~41.8% 41.9~50.0%

 

Because body fat standards are different for men and women, as well as different age groups, be sure to input your data correctly so your Body Fat Scale can calculate results accurately!

What's the difference between a bathroom scale, body fat scale, and cardio scale?

Weight Scales (commonly referred to as "bathroom scales") can only measure weight.

Body Fat Scales measure weight as well, but also measure bioelectrical impedance by sending an imperceptible electric current through your body, analyzing results to determine your body composition results, including body water, fat, muscle, and more (depending on the model).

Cardio Scales utilize Ballistocardiography (BCG) technology to physically measure your pulse with sensitive sensors as each beat of the heart creates nearly imperceptible changes at the bottom of your feet.

Certain models may combine multiple functions, such as the FTG-588 Body Composition & Cardio Scale, which can measure weight, body composition, and heart rate!

How do Body Fat Scales work?

Oserio's Body Fat Scales use Bioelectrical Impedance Analysis (BIA) for calculation of results. BIA is a safe and well-established technology for calculation of body composition, which works by sending an imperceptible electrical current through the body, measuring impedance as it travels through different body tissue. 

Oserio's algorithms then combine measured data (impedance, weight) with input data (ex: height, age, weight, gender) to calculate body composition.

Why does this work? BIA utilizes the fact that water is a good conductor of electricity to calculate results. For example, fat has low conductivity, whereas muscle (being high in water) has better conductivity. So a person that has a high level of fat will look very different (in terms of impedance) compared to someone with lots of muscle.

Who should avoid using Body Fat Scales?

Oserio body fat scales utilize Bioelectrical Impedance Analysis (BIA) to calculate body composition. BIA should not be used by subjects with the following characteristics:

(1) Electronic medical implants, e.g. cardiac pacemaker
A low level imperceptible electrical current will be sent through the body during measurement, which may damage the implanted device or result in malfunction.

(2) Lower body prosthetics and amputation
BIA measures impedance measured using an electric current sent through the body through electrode contact points. As the current cannot flow through prosthetic (or missing) legs, measurement is not possible.

(3) Pregnant Women
BIA equations are created based on statistical analysis of sample populations. If subject's body composition differs significantly from these sample populations, equations derived from "normal" healthy adults will be inherently less accurate in these subjects. Women undergo a wide range of body composition changes during pregnancy, including but not limited to change in fat percentage and body water. Without dedicated algorithms, pregnant women should use results with caution and professional advice.

What is the correct way to use a scale?

Before measurement, the scale should be placed on a flat, solid, non-slippery floor.

If used on carpet or uneven ground, measurement results may be less accurate.

How do Body Fat Scales work?

Oserio's Body Fat Scales use Bioelectrical Impedance Analysis (BIA) for calculation of results. BIA is a safe and well-established technology for calculation of body composition, which works by sending an imperceptible electrical current through the body, measuring impedance as it travels through different body tissue. 

Oserio's algorithms then combine measured data (impedance, weight) with input data (ex: height, age, weight, gender) to calculate body composition.

Why does this work? BIA utilizes the fact that water is a good conductor of electricity to calculate results. For example, fat has low conductivity, whereas muscle (being high in water) has better conductivity. So a person that has a high level of fat will look very different (in terms of impedance) compared to someone with lots of muscle.