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Know Your Body.
Transform Your Life.
Understand your fat, muscle, metabolism, and fitness in one visit — and leave knowing exactly how to train, eat, and improve.
Get DexaFit BurlingtonTrusted by Vermonters serious about their health
How It Works
Three Tests. Clear Answers.
Each test is designed to give you data your scale, wearable, doctor, or trainer cannot. One visit. The complete picture.
1
DEXA Body Composition
See exactly where fat loss, muscle gain, and bone health are changing. Get a precise regional breakdown of visceral fat, limb muscle mass, and bone mineral density so you can stop guessing and start making targeted decisions. Your scale gives you one number. DEXA gives you the full picture. You lie still for ~8 minutes while a low-dose X-ray measures exactly how much fat, lean muscle, and bone you carry—and where.
±2%
Measurement accuracy — versus 10%+ error from smart scales and bioelectrical impedance devices
2
VO2 Max Fitness Test
Discover your true cardio fitness and long-term health risk. VO₂ Max is the single strongest predictor of cardiovascular health and all-cause mortality — and most wearables only estimate it. This test gives you a direct clinical measurement of your aerobic ceiling. Wearing a mask, you perform a progressively harder workout on a bike or treadmill while we measure the oxygen you use in real time.
5×
Mortality gap between the least-fit and most-fit individuals — JAMA 2018, 122,007-patient study
3
RMR Metabolic Test
Know exactly how many calories your body burns at rest. Stop relying on calorie estimates and generic nutrition plans. Your RMR reveals how many calories your body actually uses before you move a muscle, so your plan can be built on real data. You breathe normally into a device for 15–20 minutes while it measures the gases you exhale at rest.
200+
Calorie difference between estimated and measured RMR — enough to stall any weight loss or gain plan
WHO IT'S FOR
EVERYONE.
Lose Weight
Stop guessing.
Start knowing.
Visceral Fat Risk
+55%
Higher cardiovascular risk from elevated visceral fat. Your scale can't see it.
Weight loss & GLP-1 users
You don't have a weight problem. You might have a composition problem.
Your scale can't tell you if you lost fat or muscle. We can.
On GLP-1? Roughly 1 in 3 pounds lost is lean mass. Know if you're in that range.
Smart scales carry a 10%+ error margin. DEXA is the clinical gold standard.
Recommended tests
DEXA Body CompositionRMRVO2 Max
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Build & Perform
Train with precision.
Measure with it too.
Lean Muscle Precision
±0.5%
DEXA regional lean mass accuracy. No wearable or scale comes close.
Athletes, gym-goers & competitors
Because 'Good Enough' doesn't win. Measure the margin.
VO2 Max: the performance ceiling your wearable estimates. We measure it directly.
Regional lean mass by limb and trunk — the clinical edge your competition doesn't have.
RMR tells you what your body actually burns. Fuel training with data, not estimates.
Recommended tests
DEXA Body CompositionVO2 MaxRMR
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Women's Health
Your body is changing.
The data explains why.
Lean Mass Maintained
96%
DexaFit members preserved lean mass — even through hormonal change.
Perimenopause & hormonal change
The most important changes are the ones you can't see.
Menopause shifts fat to visceral. No mirror or BMI catches it. DEXA does.
Bone density decline accelerates around menopause. An 8-minute test gives you a number you can act on.
Your metabolism changes in perimenopause. RMR testing shows exactly how much.
Recommended tests
DEXA Body CompositionBone Mineral DensityRMR
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Bone Health
Strong bones aren't
visible in the mirror.
Bone Density Maintained
91%
DexaFit members maintained or improved BMD. 2025 network data.
Bone health & older adults
Your bone loss is silent — until it isn't.
1 in 2 women over 50 will fracture a bone from osteoporosis. A baseline changes that.
8 minutes. Comfortable. A clinical picture of where your bones stand today.
Staying strong as you age isn't luck. It's something you measure and protect.
Recommended tests
Bone Mineral DensityDEXA Body Composition
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Live Longer
Wearables measure signal.
We measure structure.
VO2 Max Mortality Edge
5×
Least-fit vs. most-fit mortality gap. JAMA 2018, Mandsager et al.
Longevity & health optimization
You track the signals. Now add the structural layer.
Visceral fat carries 55% higher cardiovascular risk. Your BMI cannot see it. We can.
VO2 Max outpredicted smoking, diabetes, and hypertension in a 122,007-patient study.
Your year-old test is interpreted with more intelligence today than when you took it.
Recommended tests
DEXA Body CompositionVO2 MaxRMRBone Mineral Density
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Just Getting Started
You don't need a goal.
You need a baseline.
Test Duration
8min
One test. Fat, muscle, bone — all measured.
General wellness & first-timers
8 minutes gives you a complete picture of your body.
No specific goal needed. One DEXA baseline makes every health decision smarter.
Your annual physical raises questions. DexaFit answers them — no referral, no wait list.
Start here. Training, nutrition, goals — everything makes more sense after.
Recommended tests
DEXA Body CompositionRMR
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Reserve Your Spot
Book Your Session
Limited-time specials. Pick your deal below.
🔥 Spring Specials — no code needed. Discounts are already applied. Just pick your test and book.
Real Results
What People Are Saying
Got Questions
Common Questions
You'll arrive, check in, and move through your selected tests in a single visit. The DEXA scan takes around 8 minutes and requires no preparation beyond removing metal objects. VO2 Max and RMR each take 15 to 20 minutes. At the end of your appointment, a staff member walks you through your results and explains what each number means for your health and goals.
A full bundle — DEXA, VO2 Max, and RMR — runs approximately 60 to 75 minutes from start to finish. Individual tests are shorter. Plan for at least 30 minutes even for a standalone DEXA to allow time for check-in and your results review.
For the DEXA scan, avoid eating a large meal or intense exercise in the 3 hours before. For VO2 Max and RMR, avoid caffeine and significant physical activity for at least 4 hours prior — both tests measure your body at a baseline state and are affected by recent stimulants or exertion. You'll receive a detailed preparation guide by email after booking.
DEXA uses a low-dose dual-energy X-ray to separate your body into three tissue types: fat mass, lean muscle mass, and bone mineral density. It reports results regionally — arms, legs, trunk, and android/gynoid zones — so you see not just how much fat you carry, but where. Visceral fat (the metabolically active fat around your organs) is flagged separately. Total radiation exposure is roughly equivalent to a cross-country flight.
You wear a fitted mask and perform a progressively harder protocol on a stationary bike or treadmill. The mask captures the oxygen you inhale and the carbon dioxide you exhale at each intensity level. The test ends when you reach your maximum aerobic effort. Unlike wearable estimates, this is a direct measurement — the same protocol used by elite sports teams and clinical research.
Your results load into the DexaFit ai app immediately after testing. A staff member reviews them with you in person before you leave, walking through what each metric means and how you compare to age- and sex-matched norms. Your data stays in the app for future reference and is available to share with your doctor, trainer, or dietitian.
Most people retest every 3 to 6 months when actively working toward a goal — weight loss, muscle gain, performance improvement — and annually for a general health baseline. Retesting is where DexaFit delivers its greatest value: seeing exactly how your body composition, cardiorespiratory fitness, and metabolism have changed in response to your efforts.
Yes. DEXA uses very low-dose X-ray — the radiation exposure is minimal, roughly comparable to sitting outside for a few hours. The scan is non-invasive, painless, and takes about 8 minutes. It is not recommended for individuals who are pregnant, as a precaution.