Services
Metabolic and VO2 max testing
VO2 max and metabolic testing measure how your body uses oxygen and energy. VO2 max is among the better predictors we have of long-term health. We arrange the testing in collaboration with a local partner.
This is the test for someone doing everything right whose weight will not move. It is also for anyone who wants a real baseline rather than a guess.
Who this is for
Who this helps
- You are doing everything right and the weight will not move.
- You want a real baseline rather than what your watch estimates.
- You are training seriously and want to know whether it is working.
- General advice about diet and exercise has not moved anything for you.
- You want a proper measurement of one of the strongest predictors of long-term health.
What it involves
How this works
A real number instead of an estimate
A measured result you can train against and repeat later to see whether anything changed.
Resting metabolic rate
How many calories you burn at rest. The measured number is often very different from the one people have assumed for years.
Through a local testing partner
We arrange the testing in collaboration with a local partner, and the result comes back to your physician.
Interpreted by your physician
The number is the easy part. What it means for your training, your medication, and your risk is the reason to do it at all.
Side by side
Exactly what is different at Naples Concierge Health
| The usual experience | What we do |
|---|---|
| A figure your watch calculates from heart rate. | A measured result from actual gas exchange. |
| A calorie target from an online calculator. | Your measured resting metabolic rate. |
| A number with no interpretation. | Your physician explains what it means for your training and your risk. |
| Testing at a lab across town on their schedule. | Arranged by our office with a local testing partner. |
| A single reading, taken once. | A baseline you repeat, so you can see whether anything changed. |
In more detail
What you should know
What VO2 max measures, and why it matters so much
VO2 max is the maximum amount of oxygen your body can use during intense exercise. It is measured directly. You wear a mask that analyzes the air you breathe out while the workload increases, so the result is a measurement rather than an estimate.
It is worth caring about because it is among the strongest predictors of long-term mortality we have. Its predictive power is comparable to or stronger than that of smoking status, blood pressure and cholesterol. And unlike most predictors, it responds to training at any age and from any starting point.
The counterintuitive part: the largest gains in risk are at the bottom of the range. Moving from very low fitness to merely below average is a bigger reduction in risk than moving from good to excellent. That means the test matters most for people who assume it is only for athletes.
Resting metabolic rate, and why the calorie number you have been using is probably wrong
Resting metabolic rate is how much energy your body uses doing nothing. It is the largest share of your daily energy use, and the online calculators everyone relies on are population averages that can be substantially wrong for an individual.
That gap explains a lot of frustration. If your actual rate is well below the estimate you have been eating to, you have been in a surplus while believing you were in a deficit. The estimate was wrong, and your effort was never the problem.
Measuring it replaces a guess with a number. Sometimes the measurement also uncovers something worth treating. A rate well below prediction can point to a thyroid problem, a medication effect, or the metabolic adaptation that follows years of restrictive dieting.
What we do with the result
Your physician goes through the results with you: where you sit for your age and sex, what the results mean for your risk, and what would improve them. Training prescriptions that come out of a real measurement are considerably more specific than general advice to exercise more.
The results also inform the rest of your care. A low VO2 max with normal bloodwork is worth investigating. A resting rate well below prediction is worth explaining. And repeating the test in a year shows you whether what you changed actually worked.
Questions
What people ask
Do I need to be an athlete for this to be useful?
No, arguably the reverse. VO2 max is one of the stronger predictors of long-term health at every level of fitness. Knowing your starting point matters most when that starting point is low.
How often should it be repeated?
Usually annually, or after a meaningful change in training or treatment, so you can see whether what you are doing is working.
What does the test involve?
You exercise on a bike or treadmill with a mask that measures the air you breathe out, while the workload increases gradually to your maximum. It takes about fifteen minutes of actual effort, and it is hard for the last few minutes by design.
Is it safe if I am not fit?
For most people yes, and it is supervised throughout. Where there is cardiac risk we assess that first and sometimes recommend a submaximal version instead. A submaximal test still gives a useful estimate without pushing you to your true maximum.
What is a good VO2 max?
It depends entirely on age and sex. What matters is where you sit within the range for your age and sex. The more useful question is not whether it is good but whether it is improving.
Related reading
This page is general health information, not medical advice, and reading it does not create a physician-patient relationship with Naples Concierge Health or any of its physicians. Talk to a qualified clinician about your own health. If this is an emergency, call 911.
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What is your medical care missing?
A short conversation with our member liaison about the care you have now: who follows up, who keeps your care coordinated, and where the gaps are. We will tell you if there are no gaps.