The single number that predicts how long and how well you’ll live.
Not your weight. Not your cholesterol. Not whether you smoke. The single most predictive biomarker for longevity — measurable, trainable, and completely within your control.
VO₂ max is the most powerful independent predictor of all-cause mortality. At PURE, it’s also the foundation of precision athletic training – interpreted using a framework developed by our in-house Sport Science PhD, Dr. Daryl Hurrie.
VO₂ Max vs. Traditional Risk Factors — Relative Mortality Prediction Strength
Relative predictive strength based on Mandsager et al. 2018 · Bar lengths are illustrative not proportional · All factors matter; this shows the relative ranking of VO₂ Max
How it actually works
VO₂ Max isn’t willpower — it’s mitochondrial density, circulatory efficiency, and oxygen utilisation working in concert. A higher number means your body is better at extracting oxygen from blood and converting it to energy inside cells.
At Pure, VO₂ Max is measured using a metabolic cart treadmill protocol — physician-reviewed and integrated with DEXA, POCUS, and blood biomarker findings.
Bottom 25% → Top 25%: Nearly five-fold lower mortality risk
The 2018 JAMA Network Open analysis of 122,007 adults found a clear, dose-response relationship between VO₂ Max and survival. The higher your aerobic fitness, the lower your mortality risk — with no upper limit to the protective effect. Even moving from “low” to “below average” produced significant gains. Fitness was a stronger predictor of mortality than smoking, hypertension, diabetes, coronary artery disease, and obesity — combined.
750K+
The Kokkinos Study— The Largest Dataset Ever
A 2022 Journal of the American College of Cardiology paper analyzed over 750,000 U.S. veterans — the largest cardiorespiratory fitness dataset in history. Every 1-MET increase in VO₂ Max (approximately 3.5 ml/kg/min) was linked to a 13–15% drop in mortality risk. No group — at any age, any BMI, any level of existing disease — was too old or too far gone to benefit.
Kokkinos et al., JACC, 2022
No ceiling
There is No Upper Limit to the Benefit
Unlike most health interventions, improving VO₂ Max keeps paying dividends even at the highest fitness levels. The top 2.5% of performers in the Mandsager study had an approximately 80% lower mortality risk than the bottom group. The data doesn’t plateau — which means every percentage point of improvement counts, at every fitness level, at every age.
Mandsager et al., JAMA Network Open, 2018
PURE Lifestyle VO₂ Assessment Options
The Pure VO₂ assessment produces a clinical-grade report suite alongside immediate, actionable training prescriptions.
Health/Longevity VO₂ Max Test
Your VO2 max is one of the strongest predictors of long-term health we have — more telling than cholesterol, more telling than blood pressure. This test gives you that number, shows you exactly where you sit against age and sex norms, and translates it into personalized heart rate and pace zones for sustainable, longevity-focused training. Built for clients who want to know their risk bracket and train smart to move up it — no race, no finish line, just more runway.
- Test: Treadmill
- Metrics: VO2 Max, HR Max, Biological vs chronological age, Percentile rank vs gender cohort
- Threshold analysis: Ventilatory Threshold Heart Rate
- Training Zones: HR training zone + Kcal expenditure
- Longevity ranking: VO2 max health bracket
- TrainingPeaks: N/A
- Coaching: none
$199 +taxes
Sport PERFORMANCE VO₂
At most facilities, a VO2 max test gives you a number and a set of generic heart rate zones. At PURE upgrading to a Sport Performance Vo2 , gives you a complete physiological portrait — and a prescription built from it.
By pairing expired oxygen analysis with real-time NIRS muscle oxygenation monitoring, our Clinical Exercise Physiologists identify your anaerobic thresholds from two independent data streams simultaneously (ventialtory,& within the muscle itself). The result is training zones anchored with a level of precision that wearable devices and age-predicted formulas simply cannot match.
Your zones are delivered in one of three frameworks — Coggan, Friel, and Attia — so they integrate directly with your device, your coach, or your training app. Your VO2 max is benchmarked against longevity norms so you understand not just where you are, but what moving one tier means for your healthspan.
- Test: Treadmill or bike (personal bike)
- Metrics: VO2 max, HR max, Workload at Vo2 max.
Ventiltory & Smo2 Threhsold HR, Workload (Bike= Power, Treadmill = Speed)
Smo2 and Ventilatory Data Graphs - Threshold analysis: Ventilatory Threshold HR & Speed (power) + NIRS/SmO2 lactate threshold HR, Speed / Power
- Training Zones: HR + power/speed + Kcal expenditure (adapted Coggan, Attia , Friel Training Zones)
- Longevity ranking: VO2 max health bracket
- Training Peaks: N/A
- Coaching: General SIT / HIIT/ MICT workout guidelines build into report.
$299 +taxes
Sports Science Coaching program
*Add On to Sport Performance VO2
Your numbers are only as good as what you do with them. This membership takes your Sport Performance VO2 / threshold data and turns it into a living training plan, built and delivered through TrainingPeaks Premium — included at no extra cost. Every workout is reviewed weekly by your Pure Sport Science team, with adjustments made as your fitness, fatigue, and life get in the way. Start your first month for $149 when you’ve completed a Sport Performance VO2 test — your data becomes day one of your plan.
- Training Peaks: Premium membership included, 4-week plan built and delivered through it
- Coaching: Weekly workout analysis
$149 first month, $199/month thereafter + taxes (minimum 3 month committment)
*$149 first-month rate applies when coaching is started off the back of a Sport Performance VO2 test ($299) — the shared NIRS/threshold data becomes the onboarding baseline for the coaching program, so no second assessment is needed to get the 4-week plan built.
Measurable. Repeatable. Trainable. Actionable.
VO₂ Max meets every criterion of a true vital sign — yet it’s absent from nearly every standard medical checkup. That’s changing, and PURE is ahead of the curve.
Measurable & Repeatable
Unlike subjective fitness assessments, lab-tested VO₂ Max produces a precise, reproducible number. It can be retested every 3–6 months to track trajectory — not just status.
Gold Standard Protocol
Trainable at Every Age
Research shows VO₂ Max is highly responsive to training at any age. Sedentary individuals typically see 15–25% improvements within 12 weeks of structured Zone 2 and interval training. No group is “too old to benefit.”
Responsive to Training
Integrated System Output
VO₂ Max can’t be faked. You can game a blood pressure cuff, but not oxygen consumption. It captures the integrated output of your lungs, heart, circulation, mitochondria, and muscles simultaneously.
Uncheatable Biomarker
Aerobic Reserve Against Illness
Higher VO₂ Max means more aerobic reserve during illness, surgery, or major physiological stress. Patients with higher fitness have fewer post-surgical complications, shorter hospital stays, and faster recovery trajectories.
Resilience Buffer
Outperforms All Usual Suspects
In head-to-head comparisons with traditional risk factors — smoking, diabetes, hypertension, obesity, coronary disease — VO₂ Max is a stronger predictor of survival. It’s the metric the medical establishment is slowly catching up to.
Strongest Longevity Signal
Mitochondrial Density Proxy
VO₂ Max reflects how many mitochondria you have and how efficiently they function. More mitochondria = higher VO₂ Max = better energy, faster recovery, slower cellular aging, and lower disease risk at the cellular level.
Cellular Health Signal
Three numbers worth knowing — and targeting
Research has identified specific VO₂ Max levels that correlate with meaningful shifts in health trajectory. These are your goalposts.
A note on wearable estimates: Garmin, Apple Watch, Whoop, and Polar all provide VO₂ Max estimates based on heart rate algorithms. These are useful for trend-tracking but carry a margin of error and cannot confirm the oxygen plateau required for a true clinical VO₂ Max. For longevity and clinical decision-making, a lab-measured metabolic cart test remains the gold standard.
Independence Threshold
Below approximately 20 ml/kg/min, daily functional independence — climbing stairs, recovering from illness, carrying groceries — becomes increasingly difficult. This is the floor to stay well above throughout the aging process.
Longevity Protection Zone
At approximately 40+ ml/kg/min, you enter a zone of meaningful cardiovascular protection — substantially lower all-cause mortality risk compared to average peers. For most adults this is the primary longevity target and is achievable with structured training.
Elite / Maximum Protection
Above 55 ml/kg/min places you in the top 2.5% of your age cohort — associated with an approximately 80% lower mortality risk versus the bottom group in landmark studies. No ceiling on benefit has been identified at this level.
Build your functional armour.
Start with VO₂ max.
PURE’s VO₂ Max testing uses a metabolic cart treadmill protocol reviewed by a Sports Science PhD and integrated with your DEXA body composition, POCUS cardiac imaging, and blood biomarker panel. You don’t get a number — you get a strategy.
