Understanding Your Results

No. Weight is measured by the scale, while many composition values are estimates based on BIA and the information in your profile. Use them to understand trends and discuss concerning results with a qualified professional.

The trend is usually the most important indicator.

Daily fluctuations in body water, food intake, and activity levels can influence individual readings. Tracking changes over weeks and months provides a much more reliable picture of body composition progress than focusing on a single scan result.

Body weight is your total mass at the time of measurement. It includes muscle, fat, water, bone and other tissues, so a change in weight alone does not explain what has changed.

Weight alone does not tell the whole story.

It is possible to maintain the same body weight while increasing muscle mass and reducing body fat, or vice versa. Boditrax helps provide a more complete picture by estimating how your weight is distributed between fat, muscle, water, and other tissues.

Body mass index (BMI) is weight in kilograms divided by height in metres squared. It is a broad screening measure and does not distinguish muscle from fat or explain where fat is stored.

Body fat percentage is the estimated proportion of your body weight that is fat tissue. It should be interpreted in context and monitored over time rather than treated as an exact measurement.

Fat mass is the estimated amount of fat tissue in your body, commonly displayed in kilograms. It differs from fat percentage, which expresses fat as a proportion of total weight.

Muscle mass is an estimated amount of muscle-related tissue according to the measurement system. Changes can be influenced by fluid balance, so use consistent scan conditions and view longer-term patterns.

On compatible equipment, segmental readings estimate the distribution of muscle or lean tissue across body regions, such as arms, legs and trunk. Not every machine provides segmental results.

Small differences between the left and right sides of the body are completely normal.

Factors such as natural muscle dominance, previous injuries, implants, or differences in physical activity can all contribute to variations between limbs. Significant or unexpected changes should be monitored over subsequent scans to determine whether they are consistent.

Total body water is the estimated water within your body. It naturally changes with hydration and activity, and affects other BIA-derived estimates.

Bone mass is an algorithmic estimate associated with bone mineral content. It is not a bone-density test and cannot diagnose osteoporosis.

Visceral fat is fat located within the abdominal cavity around internal organs. A visceral fat rating is an indirect estimate and should not be used by itself to diagnose a health condition.

BMR is an estimate of the energy your body requires at rest to maintain essential functions. It is not a direct measurement of calories burned and is not the same as total daily energy expenditure.

Metabolic age is an illustrative comparison derived from estimated metabolism and reference data. It is not your biological age and should not be used as a medical diagnosis.

Fat-free mass is your estimated body mass excluding fat. It includes muscle, water, organs and bone rather than muscle alone.

SMI relates an estimate of skeletal muscle to body size. Definitions and reference ranges can vary by device and method. It is not independently diagnostic of sarcopenia.

Where supported, this is a device-specific estimate associated with muscle characteristics. Interpretation depends on the machine and software calculation; check the information shown alongside your result.

Some compatible equipment provides additional estimates such as protein or cellular integrity indicators. These are device-dependent, may use specialised calculations and should not be treated as direct laboratory measurements.

Where provided, Boditrax Score is a summary indicator based on selected body-composition data. It does not represent a medical diagnosis or a complete measure of health.

Available metrics depend on the measurement machine, its data output and the app release. A machine that does not provide a particular advanced measurement cannot display a reliable value for it.

Age is one of the factors incorporated into body composition calculations. As we age, body composition naturally changes, and the Boditrax algorithms take this into account when generating estimates.

This is why it is important to ensure your personal profile information is entered correctly before taking a scan.

One possible reason is a change in hydration status.

If you are less hydrated than during your previous scan, the body may present a higher electrical resistance. The Boditrax algorithm may interpret this as a change in body composition, potentially resulting in a higher reported body fat percentage and lower muscle mass, even if your actual body composition has not changed significantly.

This is why trends over multiple scans are generally more meaningful than any single result.

For most users, a scan every 1 to 4 weeks is recommended.

Body composition changes gradually, and scanning too frequently may highlight normal day-to-day fluctuations rather than meaningful progress. Regular scans taken under consistent conditions provide the most useful information.