Cardiovascular

VO2 Max

Estimate your maximum oxygen uptake using the Cooper, Rockport or HR ratio method.

Distance in 12 minutes (m) (metres)

What is VO2 max?

VO2 max (maximum oxygen uptake) is the maximum amount of oxygen your body can consume and use during maximum intensity exercise. It is expressed in ml/kg/min and is the best objective indicator of aerobic capacity and long-term cardiovascular health.

How is it estimated?

Three field methods are available: Cooper test (12-min run), Rockport test (1-mile walk with end HR) and the max HR/resting HR ratio (Uth et al., 2004).

Formula

Cooper: VO2max = (distance_m − 504.9) ÷ 44.73

⚠️ Limitations

These are field estimates. The gold standard is cardiopulmonary exercise testing (CPET) in a laboratory. Margin of error is ±3–5 ml/kg/min.

FAQ

What is a good VO2 max?

For a healthy adult: >45 ml/kg/min (male) or >38 ml/kg/min (female) is considered good.

Can I improve my VO2 max?

Yes. HIIT and Zone 2 aerobic training are the most effective methods.

How much does VO2 max decline with age?

Approximately 1% per year from age 25, though training significantly slows this decline.

Is the Cooper test better than the Rockport test?

The Cooper test requires running and is more accurate for active people. The Rockport test is better suited to sedentary or older individuals.