Seca mBCA Body Scan
Know exactly what you need.
Medical-grade body composition, trusted by hospitals and elite performance clinics worldwide. Step on, wait 24 seconds, and walk away with a complete picture of your body — free with every NextGym membership.
Medical-grade accuracy
Trusted by leading hospitals & researchers worldwide.
Muscle Mass — accuracy compared to whole-body MRI
Fat-Free Mass — accuracy compared to a 4C model
Total Body Water — accuracy compared to deuterium dilution
What you learn
Every metric that matters.
The scale and the mirror only tell part of the story. Seca tells you the rest. One scan reveals what's actually driving your health — so every workout, meal and recovery decision has data behind it.
Skeletal Muscle Mass
See exactly how much lean muscle you carry, segmented by arms, legs, and torso.
Fat Mass & Distribution
Total, visceral, and regional fat, so you can catch harmful belly fat early.
Total & Extracellular Water
Hydration and cellular health measured to the liter.
Phase Angle
The gold-standard marker of cell integrity, vitality, and recovery.
Resting Energy Expenditure
Know your true metabolic rate to dial in nutrition.
BMI, BMR & More
20+ clinical markers in a single 24-second scan.
The scan
Step on. Grip the handles. Done in 24 seconds.
No pinch tests, no water tanks, no radiation. Just clinically validated 8-point bio-impedance — the same technology used in top medical clinics.
How it works
Bio-impedance, explained.
- The Seca mBCA sends a safe, low-level alternating current through the body via 8-point electrodes (hands and feet).
- Water-rich lean tissue conducts the current well, while fat acts as an insulator — and the device measures that difference precisely.
- Multi-frequency currents distinguish extracellular from intracellular water and calculate phase angle — the gold-standard marker of cellular health.
Why it matters
More than a number on a scale.
See what's really changing
Muscle up, fat down, water balanced — track the shifts a bathroom scale can never show you.
Prove your program works
Undeniable data every 4–8 weeks. See exactly what your nutrition and training changes are achieving.
Catch problems early
Identify excess visceral fat or low muscle mass long before it becomes a health problem.
Sample report
A dashboard for your body.
Every scan generates a rich, visual report — muscle balance left vs right, hydration status, fat distribution, metabolic rate. You review it with your NextGym coach, and it stays available in the palm of your hand.
The metrics that matter
Muscle. Fat. Water. Phase angle.
Every result plotted against clinical reference ranges — so you know instantly whether you're in the healthy zone, and where to focus next.
myAnalytics app
Your data. Anywhere.
Every scan syncs to the free Seca myAnalytics app. Track progress over months and years, compare scans side-by-side, and share results with your coach — all from your phone.
What members say
The scan that changes the conversation.
"The Seca mBCA delivered results within 97% of whole-body MRI — establishing a new benchmark for non-imaging body composition analysis."
"Used in leading medical facilities and Olympic training centers across the globe for its clinical-grade accuracy."
"Seeing muscle go up while fat goes down — with real numbers, not guesses — is what keeps me showing up every week."