Everyone wants their VO₂ max, but a watch estimates it and a gym test guesses it. A medical cardiopulmonary exercise test (CPET) measures it properly and explains it: what’s limiting you, and what to do about it. The Gulf’s only MET-TEST AI platform, interpreted by a physician.
Standard testing tells you how fit you are. A medical CPET tells you why, and what’s specifically limiting you.
Your VO₂ max is the best single predictor of how long you’ll live. Better than smoking, blood pressure or diabetes. Most people have never had theirs properly measured.
HeartSpan is the test that measures it in one visit. And it goes further than a number. It tells you why your heart, muscles and lungs perform the way they do and what to do about it.
The results can be eye-opening, even if you feel completely fine.
A normal blood pressure reading and a routine ECG can both look fine while something meaningful is happening under exertion.
HeartSpan tests your body the way life actually loads it and often picks up what standard check-ups miss. It’s not a fitness test. It’s a proper clinical assessment that gives you two things a basic VO₂ score can’t: the reason behind your number, and what to do about it.


It’s especially worth doing if you’ve noticed something feels off, if you’re tired more easily than you used to be, or if you get unexpectedly out of breath.
Executives wanting a real baseline. Athletes after precise training data. Anyone preparing for surgery. Anyone who just wants to know what’s actually going on before symptoms show up.
VO₂ max, the volume of oxygen your body can use at full effort, has become the number everyone wants to know. But where the number comes from changes everything. Most ways of getting it are estimates. A medical CPET is the one that actually measures it, breath by breath, and explains what it means.
Estimated from heart rate and pace by an algorithm: convenient, but it never measures oxygen. Readings can be off by a wide margin and drift between devices.
A fitness assessment that predicts VO₂ from a formula rather than measuring it. Better than a wearable, but still a calculation, and it stops at a single score.
We use a stationary bike because it gives cleaner, more accurate data than a treadmill, and a result you can properly compare against next time. A baseline you can come back to. Most people do this once and learn something. The real value comes when you repeat it. Year on year, we can see what’s improving, what’s holding steady and what needs attention, with precision.
Your VO₂ max measured directly from breath-by-breath gas analysis, with continuous ECG, on the Gulf's only MET-TEST AI platform, interpreted by a physician to show why performance is limited, not just the score.
Your VO₂ max is worth having. But on its own it tells you how fit you are, not why, and two people with the same score can be limited by completely different things. A medical CPET is the diagnostic that measures your VO₂ max and reveals what's behind it: whether you're limited by your heart's pumping capacity, your lungs' ventilation, or your muscles' ability to use oxygen.
So VO₂ max isn't the product here: it's one of the answers a CPET gives you, alongside your anaerobic threshold, your cardiac reserve, and your real training zones. It's the difference between a number and an explanation you can act on.

Measured directly, breath by breath, not estimated by a watch or predicted by a formula.
Whether your ceiling is set by your heart, your lungs, your circulation, or your muscles: the answer a score can't give.
Anaerobic threshold and training zones from your own physiology, not a percentage of estimated max heart rate.
CPET is frequently revealing when resting ECGs and echoes look normal, because it tests your system under load.
A wearable or a gym test stops at the first box. A medical CPET is the only assessment that delivers all of them: measured, then interpreted by a physician.
Your VO₂ max from breath-by-breath gas analysis on a medical CPET, not an estimate from heart rate or a wearable.

AI pattern recognition helps identify whether a limitation is cardiac, pulmonary, circulatory, or metabolic. Useful when resting tests appear normal.

Skai is the only centre in the region using a proprietary AI diagnostic platform. It’s the technology that turns breath-by-breath data into answers you can act on and it isn’t available anywhere else locally.

Serial testing on a standardised platform gives high-precision longitudinal tracking, so change is measured accurately, year over year.

What’s specifically limiting your performance, and whether it’s cardiac, pulmonary, or metabolic in origin.
Your measured VO₂ max and anaerobic threshold from breath-by-breath analysis, and your safe cardiovascular exertion limits.
Medical CPET is frequently abnormal when resting tests (ECGs, echocardiograms, nuclear stress tests) appear normal.
Training zones defined by your anaerobic threshold rather than generic formulas, so guidance reflects your physiology.
A standardised, comparable baseline that lets your team track adaptation, improvement, or early decline with precision.
Findings are reviewed with you in plain language and integrated into your wider care plan, with follow-up built in.

HeartSpan is led by Dr Sundeep Chaudhry, a US specialist physician with over 22 years of experience and one of the leading voices in this field globally. He interprets your results personally with Skai’s wider clinical team alongside him.
Baseline measurements and set-up, with continuous cardiac monitoring in place before you begin.
The exercise portion lasts 8 to 15 minutes on a stationary bike. You can stop at any time, fully supervised.
Monitored recovery and an initial results discussion, all within the same appointment.
Findings interpreted in plain language and integrated into your wider care plan, with follow-up built in.
A physician-led cardiopulmonary exercise assessment that measures your VO₂ max and explains what's behind it. Built for executives, athletes, anyone noticing declining stamina or unexplained breathlessness, and anyone who wants a precise physiological baseline. The first step is a short consultation.
Tell us where to reach you and our care team will be in touch, typically within one business day, to arrange your assessment.
Confidential. No obligation. We reply within one working day.
Your watch estimates it from your heart rate. HeartSpan measures it directly from your breath. The number you get is the real one, and you also get the reason behind it.
Start with a short consultation. We'll explain what the assessment involves and arrange the right test for you.
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