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Recommended TestingPerformanceUpload Compatible
VO2 Max Testing
The gold standard measure of how long you'll live
~$250
Immediate
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.
What It Measures
Maximum oxygen consumption (VO2 max in mL/kg/min)
Anaerobic threshold and lactate inflection points
Heart rate zones calibrated to YOUR physiology
Respiratory exchange ratio (fat vs. carb burning)
Exercise efficiency and cardiac output estimation
Fitness age vs. chronological age comparison
Why Gabriel Recommends It
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.
What to Expect
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. You'll need athletic clothing and shoes. No eating 2–3 hours before. Results are immediate.
How Gabriel Interprets This
Conventional practitioners read these results through a disease-focused lens — looking for what's broken. Gabriel reads them through a holistic lens — looking for what's out of balance and how to restore it. We see optimal ranges, not just "normal" ranges. We connect findings across all your diagnostics to reveal patterns that siloed specialists miss.
~$250Immediate
Frequently Asked Questions
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 is right?
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