PEDEvidence

SOURCE-LINKED STUDY SUMMARY

Accuracy of bioelectrical impedance consumer devices for measurement of body composition in comparison to whole body magnetic resonance imaging and dual X-ray absorptiometry.

Obesity facts ·

Human

Abstract summarizedQuality not appraised
What was studied
Validation of consumer bioelectrical impedance (BIA) devices against MRI and DXA body-composition measurements.
Who / model studied
106 adults: 54 women and 52 men, spanning normal weight, overweight and obesity.
Studied dose & schedule
Three foot-to-foot devices and one tetrapolar device compared with MRI/DXA; a measurement study, not a drug trial.
What the study found
Individual body-fat agreement limits were −6.59 to +4.61 percentage points for the tetrapolar device and as wide as −14.54 to +8.58 for foot-to-foot devices. Small group-average bias therefore concealed substantial individual error.
Limitations & context
Abstract assessment of the devices tested; results do not validate every current scale or accuracy of tracking change. No treatment adverse-event assessment applies.

Read summary source ↗ · Prepared 10/6/2026 · AI-assisted, source-based summary

Review record & corrections

Summary prepared: . Source scope: abstract. This is an AI-assisted source summary, not an independent clinician sign-off.

No public field-by-field revision history is available for this card yet. The date above is the summary date, not proof that every field was updated then.

Inspect the source · Correction policy

Save, annotate or compare this study in the library →

Research findings apply to the population and conditions studied. This educational summary is not a treatment recommendation or a formal assessment of study quality.

Original publication ↗ · DOI: 10.1159/000176061

Evidence and review standards

← All study summaries