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Accurate VO2 max and metabolism testing

Find your true training zones and daily calorie burn — not estimates

Tired of wearables guessing your fitness numbers?

Smartwatches and online calculators estimate your VO2 max and metabolism using predictive formulas, not your actual physiology. As a result, you may see:

Training zones based on estimates rather than measured oxygen consumption
Calorie burn estimates that may differ significantly from your actual metabolism
Cardio fitness scores that don’t match how you actually train
No read on your resting metabolic rate, just a formula guess
Training plateaus that are harder to understand without accurate metabolic data
VO2 Max and resting metabolic rate RMR testing measure your body directly, using the same COSMED system hospitals and Olympic training programs rely on.

Get your true metabolic numbers

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No obligation, and most insurance plans offer reimbursement

You need performance testing that measures your body, not a formula

Better training starts with better data. Our VO2 max and metabolism testing provides direct measurements of your aerobic fitness and resting metabolism so you can train more efficiently. Every assessment includes:

VO2 Max Testing

A full gas exchange analysis measures your aerobic capacity and identifies personalized training zones based on your body's actual performance.

Resting Metabolic Rate Testing

FDA-cleared indirect calorimetry measures exactly how many calories your body burns at rest, not a formula guess.

Personalized Training Zones

Receive personalized heart rate and training zones based on your gas exchange data to help you train at the right intensity.

Expert-Reviewed Reporting

Your results are reviewed by our clinical team and delivered in a report you can use with your coach or on your own.

Why people choose Maze Medical Fitness Testing

Accurate performance testing starts with the right technology. At Maze Medical Fitness Testing, we use the same equipment hospitals and elite training programs use, not consumer-grade wearables. Here’s what you can expect:

Same System As Elite Athletes: We use the same COSMED VO2 system trusted by hospitals and elite athletic programs to deliver accurate performance data.
FDA-Cleared Metabolic Testing: Our RMR testing uses FDA-cleared indirect calorimetry to directly measure how many calories your body burns at rest.
Hospital-Affiliated Expertise: Our team works alongside physicians, nurse practitioners, and physician assistants affiliated with institutions like Mount Sinai and Montefiore.
Combine Your Testing: Pair your VO2 max and RMR assessment with a DEXA scan for a more complete view of your performance, metabolism, and body composition.

Frequently asked questions

How is VO2 Max testing different from what my smartwatch tells me?

VO2 Max testing measures your actual oxygen use through full gas exchange analysis, while smartwatches estimate VO2 max from your heart rate and movement patterns, so results may differ from direct testing.

What is RMR testing and why does it matter?

Resting metabolic rate testing measures how many calories your body burns at rest using FDA-cleared indirect calorimetry, instead of a height-and-weight formula, so your nutrition plan is built on your actual metabolism

How long does testing take and when do I get results?

Both VO2 Max and RMR testing are done in a single visit, and your clinically-reviewed report is usually available within 48 hours.

Book your metabolic test today

Replace estimates with accurate measurements. Schedule your VO2 max and RMR assessment to better understand your fitness, metabolism, and calorie needs.

Individual results vary. Consult a qualified healthcare professional to interpret your results.