You can buy a VO2 max test in an afternoon. What's harder to buy — and far more worth vetting — is a program that knows what to *do* with the number, re-tests it on a real schedule, and ties it to the rest of your physiology. Here's how to tell the difference before you commit.
Start With Why VO2 Max Is Worth Measuring
VO2 max is the maximum rate at which your body can take in and use oxygen during hard effort. It's the single best summary measure of cardiorespiratory fitness, and the American Heart Association has formally argued it should be treated more like a vital sign than a niche athletic stat [1].
The reason is consistency in the data. Across large cohorts spanning different ages, races, and both sexes, lower cardiorespiratory fitness tracks with higher long-term mortality risk in a graded way — and in one large treadmill-testing cohort the researchers reported no observed point of diminishing returns at the high end [2][3]. That's a mechanism worth understanding rather than a marketing line: fitness reflects the integrated health of your heart, lungs, vasculature, and muscle.
For a deliberate planner, the takeaway is simple. VO2 max is legitimate to measure. The question isn't *whether* a program tracks it — it's *how rigorously*.
Source: [2] Cardiorespiratory Fitness and Mortality Risk Across the Spectra of Age, Race, and Sex (JACC), [3] Association of Cardiorespiratory Fitness With Long-term Mortality Among Adults Undergoing Exercise Treadmill Testing (JAMA Network Open)
"Good" Looks Like Re-Testing, Not a One-Off Panel
A single VO2 max number is a snapshot. A longevity *plan* is a trajectory. The distinction matters because the value of the measurement comes almost entirely from the comparison: where you started, where you are now, and whether the work you're doing is moving the needle.
A serious, physician-led approach treats the first test as a baseline, prescribes a structured period of training, and then re-tests using the same protocol so the numbers are actually comparable. The federal Physical Activity Guidelines and ACSM's testing framework both describe assessment as part of an ongoing prescribe-and-reassess loop, not a one-time event [6].
When you're vetting, ask precisely how re-testing works:
- What's the re-test cadence? A defensible plan commits to re-assessment on a schedule — not "come back whenever."
- Is the protocol identical each time? Same equipment, same testing method, ideally similar conditions. A graded treadmill test compared against a one-off wearable estimate is not an apples-to-apples comparison.
- Who interprets the trend? The change over time should be reviewed by a provider against *your* baseline and history — not scored against a generic leaderboard.
If a program quotes you a flashy baseline number but can't describe its re-testing process, you're buying a snapshot dressed up as a program.
Don't Forget Strength: The Other Half of the Plan
Cardiorespiratory fitness is half the picture. The other half is muscle — and a longevity plan that ignores it is incomplete. The European Working Group on Sarcopenia (EWGSOP2) defines age-related muscle loss using measurable thresholds for strength, muscle quantity, and physical performance, with specific grip-strength and gait-speed cut-points [4].
Grip strength is a useful, low-tech example of why this matters. In the large international PURE study, lower grip strength was associated with higher risk of all-cause mortality and cardiovascular events [5]. It's not that squeezing a dynamometer makes you live longer — grip strength is a *proxy* for total muscular health and a marker that's easy to re-test consistently over years.
A good plan, then, sets and re-tests both cardiorespiratory and strength targets. Ask whether the program assesses muscle and function at all, what specific measures it uses, and whether those are re-tested on the same disciplined cadence as the aerobic work.
kg (grip strength, EWGSOP2 cut-points) · marker = Women low-strength cut-point
Source: [4] Sarcopenia: revised European consensus on definition and diagnosis (EWGSOP2), Age and Ageing
The Oversight Questions to Ask Before You Pay
This is the comparison stage, so treat it like due diligence on any other investment. Premium presentation is not the same as clinical rigor. A few questions separate the two quickly:
1. Who is actually responsible for the medical decisions? Targets, interpretations, and any prescriptions should sit with a licensed, independent provider — not a coach, a concierge host, or an algorithm. Ask for the structure in plain terms.
2. Are the targets individualized? A credible target accounts for your age, sex, baseline, and history. Population averages are a starting reference, not a personalized goal.
3. How are abnormal findings handled? Maximal exercise testing carries real cardiovascular considerations, and ACSM's framework includes pre-participation screening for exactly this reason [6]. A serious program has a defined path for flagging and escalating abnormal results — not a wellness disclaimer.
4. How is your data handled? For a privacy-conscious executive, this is non-negotiable. Ask where results live, who can see them, and how the program treats discretion as a standard rather than an upsell.
5. What happens if the numbers don't move? A good answer involves the provider revisiting the plan. A weak answer is silence, or a pivot to selling you something else.
A note on supplements and medications
Some longevity programs layer in prescription therapies alongside training. That can be appropriate when an independent provider determines it's suitable for you — but performance metrics like VO2 max and strength should never be used as a sales funnel for a specific drug. A prescription is a clinical decision, never a guaranteed deliverable. And if compounded medications ever enter the conversation, hold the bar high: Compounded medications are not reviewed or approved by the FDA for safety, effectiveness, or quality. Compounded products are not equivalent to or interchangeable with any FDA-approved brand-name drug. Availability varies by state.
Putting It Together
The through-line is discipline. A "good" VO2 max plan is one that: measures a legitimate marker, sets an individualized baseline, prescribes structured work, re-tests the same way on a defined cadence, pairs cardiorespiratory data with strength and function, and keeps the medical judgment in the hands of a licensed provider. Everything else is presentation.
If you screen on those terms, the gimmicks tend to disqualify themselves — they're built to sell a number, not to manage a trajectory over the next thirty years.
*This article is educational and is not medical advice. Decisions about testing, training, and any medication should be made with a licensed provider who knows your history.*
Where Velri fits
Velri is a technology and coordination company — not a medical practice. We help coordinate the logistics around a longevity plan: arranging laboratory testing, connecting you with an independent, licensed provider for evaluation, and — only if that provider prescribes — coordinating fulfillment through an independent, licensed pharmacy. The clinical decisions, including whether any test, target, or treatment is appropriate for you, rest entirely with the independent provider. Velri does not provide medical care or guarantee any outcome or prescription.
