VO2 Max & Resting Heart Rate
VO2 max measures how efficiently your heart, lungs, and muscles use oxygen during exercise. It's one of the strongest predictors of healthy longevity found in ageing research — in one study of over 122,000 adults, the fittest group had an 80% lower risk of death than the least fit (Mandsager et al., JAMA Network Open, 2018).
We'll estimate yours from your resting heart rate using the Heart Rate Ratio Method (Uth et al., 2004) — no treadmill needed.
📏 Before you begin
For the most accurate result, measure your resting heart rate first thing in the morning, before getting out of bed. Count your pulse for a full 60 seconds.
Tell us about yourself
Just three numbers — no equipment needed beyond a watch or phone timer.
💡 What this means for you
✅ Suggested next steps
This is a formula-based estimate, not a lab measurement — individual accuracy varies, and it tends to underestimate VO2 max in fitter people. It's a screening tool, not a diagnosis. Always check with your doctor before starting a new exercise programme.
Sources: Uth et al., 2004 (Heart Rate Ratio Method) · Tanaka et al., 2001 (HRmax) · Cooper Institute / ACSM fitness norms.
Save your result to start a free ProAger membership account and track trends like this over time.
VO2 Max Trend
VO2 max over time (higher is better)
Resting heart rate over time
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