What is InBody and how does it work?

The InBody body composition analysers provide a detailed report outlining an individual’s measurements in such things as but not limited to:

  • Total skeletal muscle mass
  • Total body fat in kilograms
  • Total body fat percentage
  • Visceral fat
  • Total body water
  • Segmental muscle and fat analysis
  • Bone mineral content
  • Basal metabolic rate

Your scan is as unique as you are

InBody’s patented technology is unique as it scans you for you. InBody is the only BIA device that does not require inputted age and gender data – the results simply speak for themselves and this is what sets us apart from other devices. InBody does not use any assumptions in its assessment and provides results which are extremely precise and as unique as the person standing on them. We request age and gender simply as a means of providing relevant guidelines on your result sheet (these are generally found in a bracket format, next to your actual results). This allows you to compare your results against a broad spectrum average. Simply put, you could change your age and gender on an InBody device and your results will not change as YOU have not changed.

The non-use of any assumptions is what sets InBody’s technology apart from all others and is one of the underpinning reasons why InBody is used in extensive studies and utilised by top sports people, medical institutions, NASA and currently in use in over 70 countries worldwide.

This is a brilliant tip to prove the often claimed preciseness of other devices as when changing age and gender, your scan should not change – when it does, it shows the device is utilising assumptions not actual producing individual assessments. In other brands, the age and gender input is required and will produce results based on averages in a scan which will substantially affect the outcomes. Other devices may also ask for ethnicity and body types which again, should not be required in order to produce a precise scan. Claims are often made that inputting age and gender makes the scan more accurate however this is incorrect.

Think of this scenario – You scan a 12 year old child, for example and even though the child is growing quickly if you scanned them again in say one week little would have changed however, if in that week they turned 13, then every other device will assume they are one year older but in fact they are only one week older, so therefore results cannot and should not be relied on. InBody’s standalone patented technology ensures unsurpassed precision.


Controlling the path of high frequency waves is very difficult. This technical know-how is an InBody specific specialty and has been accumulated over many years of experience in the field.

Electric current has a different penetration force depending on frequency. Low frequencies travel down the flow of the external surface water and are unable to penetrate the cell wall, thus measuring the water content outside of the cell. A higher frequency will measure the water content inside of the cell because it penetrates the cell wall. By using a diverse set of frequencies, the InBody can measure water contents inside and outside the cell separately.

Also, with the usage of several different frequencies, you are able to provide more information on the body composition because more resistance values are attained. The InBody 770 is based on 6 different frequencies that measure each segment, providing a total of 30 separate impedance values.


The technical term for this is Direct Segmental Multi-frequency Bioelectrical Impedance Analysis (DSM-BIA). It separately measures the impedance (resistance to alternating electric currents) of the trunk, arms, and legs of our body.

This new measurement concept measures the resistance of the cross point of two flows and takes the resistance values of the arms, legs and the body trunk.

Why is this important?

The human body is composed of five cylinders: the arms, the legs and the trunk. With the technology of the InBody, the trunk is directly measured. The trunk is occupied by various internal organs and its metabolic characteristics are different from the other parts of the body. Although difficult, it is important to precisely and directly measure the trunk, since the trunk has very low resistance compared to the arms and legs.