VO2 Max Testing
The gold standard measure of how long you'll live
What Gabriel reads for
Maximum oxygen consumption (VO2 max in mL/kg/min)
Anaerobic threshold and lactate inflection points
Heart rate zones calibrated to YOUR physiology
Cost
~$250
Turnaround
Immediate
Ordering path
DexaFit
Results flow
Upload + interpret in Gabriel
What this test reveals
What this test reveals
VO2 max testing measures your maximum oxygen consumption during exercise — the single strongest predictor of all-cause mortality and the gold standard for cardiovascular fitness assessment.
Research consistently shows that VO2 max is a better predictor of longevity than smoking status, blood pressure, or cholesterol levels. Moving from the bottom 25% to even average fitness reduces mortality risk by over 50%. This test gives you your exact number and a roadmap to improve it.
People usually reach for this kind of diagnostic when they want a clearer read on maximum oxygen consumption (vo2 max in ml/kg/min), anaerobic threshold and lactate inflection points, heart rate zones calibrated to your physiology, especially when symptoms or prior testing still leave blind spots.
Once results are back, you can upload them into Gabriel to connect the findings to symptoms, protocols, and next-step testing instead of leaving them as a static report.
Commonly relevant for: Heart Disease Prevention, Weight Management Metabolic Health, Anti Aging Longevity.
Gabriel difference
Why this becomes more useful inside Gabriel
VO2 max is the longevity metric that Dr. Peter Attia calls 'the most powerful marker we have.' The difference between low and elite fitness is a 5x difference in mortality risk. Gabriel uses your VO2 max data alongside your biological age and body composition to create a complete longevity picture — and to prescribe the specific exercise protocols (Zone 2, VO2 max intervals) that will move the needle most.
Gabriel interprets results through a functional, root-cause lens: optimal ranges, pattern recognition across multiple diagnostics, and what the findings actually mean for action rather than just classification.
That means this test can feed directly into protocols, practitioner matching, food strategy, and follow-up testing instead of ending as a one-off PDF or lab portal result.
What to expect
What to expect from ordering to results
01
Order
Order directly through DexaFit or ask Gabriel whether there is a better path first.
02
Complete
You'll exercise on a treadmill or bike while wearing a mask that measures your oxygen consumption and CO2 output. The test gradually increases in intensity until you reach your maximum effort — typically 10–15 minutes of actual exercise.
03
Interpret
Upload the results to Gabriel for pattern recognition, protocol suggestions, and next-step guidance.
Frequently asked questions
Questions people usually ask before ordering
VO2 max measures the maximum amount of oxygen your body can use during intense exercise, expressed in mL/kg/min. It's the single best predictor of cardiovascular fitness and one of the strongest predictors of all-cause mortality. Research shows that improving VO2 max from 'low' to 'above average' reduces mortality risk more than quitting smoking.
You exercise on a treadmill or bike with increasing intensity while wearing a mask that measures oxygen consumption and CO2 production. The test takes 8-20 minutes of exercise (about 1-1.5 hours total including setup). You push until exhaustion. A technician monitors your heart rate, blood pressure, and safety throughout.
It varies by age and sex. For men aged 30-39, 'good' is 39-48 mL/kg/min and 'elite' is 50+. For women aged 30-39, 'good' is 34-41 and 'elite' is 45+. Dr. Peter Attia recommends targeting the top 2% for your age, which he considers 'centenarian decathlete' territory.
Wearable estimates are directionally useful but typically 10-15% off from lab values. They're good for tracking trends over time but shouldn't be used for precise fitness assessment or clinical decisions. A lab test provides the actual number plus ventilatory thresholds and heart rate zones.
Typically $150-300 at performance labs, sports medicine clinics, or facilities like DexaFit. Some offer packages that combine VO2 max with DEXA body composition and RMR testing for $300-500.
Every 3-6 months if you're actively training to improve it. Annually for general health monitoring. Your training zones and thresholds can shift significantly in 12 weeks of targeted training.
Not sure which test belongs in your workup?
Tell Gabriel your symptoms, goals, and what you have already tried. You will get a more useful answer than a generic test catalog can give you.