Bodystat QuadScan 4000
Bodystat QuadScan 4000: BIA body-composition testing
QuadScan 4000 measures impedance at four frequencies using adhesive electrodes. Alongside estimated fat and fat-free mass, it reports body-water compartments, resistance, reactance and phase angle. Testing is supine; the operator enters height and weight.
For tracking changes, check which results you will receive and whether the service includes an explanation. Keep testing conditions consistent for repeat measurements.
A listing is neither manufacturer endorsement nor an accuracy rating.
A practical guide to the test
Learn what happens during the test, how to prepare and what to ask when booking. Always confirm that the provider offers the specific service.
What Bodystat QuadScan 4000 measures
QuadScan 4000 measures impedance at four frequencies using adhesive electrodes. Alongside estimated fat and fat-free mass, it reports body-water compartments, resistance, reactance and phase angle. Testing is supine; the operator enters height and weight.
Manufacturer specifications describe the model. They do not confirm the report a provider supplies or public service availability.
Specifications: Bodystat QuadScan 4000
- Method
- Multi-frequency BIA
- Measurement frequencies
- 5, 50, 100, 200 kHz
- Measurement position
- Supine
- Electrodes
- 4 adhesive electrodes
- Documented outputs
- Estimated fat, fat-free mass, total, intracellular and extracellular water; 50 kHz phase angle
How it measures
BIA measures electrical impedance. A model uses this to estimate body composition, including fat and fat-free mass. InBody is a BIA brand, not a separate method. Fluid status can influence the result.
Benefits
- Compare the documented model specifications before choosing a provider.
What the device does not tell you
- Fat-free mass is not pure muscle mass. A single result is not a diagnosis. Different devices and similarly named metrics may use definitions that are not interchangeable.
Compare devices
For tracking change, ask about using the same device and procedure and having the results explained. For clinical examination, confirm referral and booking requirements with the provider. Differences between methods are not automatically changes in your body.
Preparation and comparability
Follow the specific device manual and provider instructions. For repeat BIA, keep time of day and food, activity and fluid conditions similar. Ask the provider about suitability and safety, especially during pregnancy or with implanted electronic devices.
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