What counts as a good VO2 max at your age, why it matters so much for longevity, and how to improve yours, explained simply by a Klang Valley physiotherapist.
VO2 max, your body’s maximum capacity to use oxygen, is one of the strongest predictors of how long and how well you will live. Naturally, people want to know how their number compares. The honest answer is that it depends on your age and sex, and that the most useful comparison is not against a chart but against your own past self. Still, understanding the norms helps you set realistic, motivating targets.
Why VO2 max matters so much
VO2 max reflects how well your heart, lungs and muscles work together to deliver and use oxygen during hard effort. It is, in effect, a single number summarising your cardiovascular fitness, and it tracks remarkably closely with longevity and the risk of many diseases. A higher VO2 max is associated with a longer, healthier life, which is why it is worth knowing and improving. Our full guide to VO₂ max explains the science.
How it changes with age and sex
Two patterns shape the norms. First, VO2 max is generally higher in men than in women, due to differences in body composition and blood. Second, and more importantly for healthy ageing, it declines gradually with age, typically from early adulthood onwards, and that decline accelerates with inactivity. This is why a fit 60-year-old can have a higher VO2 max than an unfit 40-year-old: training shifts you up the curve, effectively making your fitness younger than your years.
How to think about your number
Rather than fixating on hitting a specific figure, use norms to place yourself roughly, below average, average, or above average for your age and sex, and then focus on moving up. The categories matter more than the exact number, and a clearly below-average result is a useful prompt to do more cardio. You do not need a lab: our VO₂ max calculator gives an estimate, and you can gauge progress with simple tests like the 2-minute step test. The trend in your own number over months is what counts.
How to improve it
The good news is that VO2 max responds well to training at any age:
- Build an aerobic base with regular easy Zone 2 cardio, following a weekly schedule.
- Add a little intensity once you have a base, such as the Norwegian 4x4, which is one of the most effective ways to raise VO2 max.
- Stay consistent, since improvements build over weeks and months, as in improving stamina after 50.
A mostly-easy, sometimes-hard approach, as in Zone 2 vs HIIT, works best.
Start where you are, safely
If you are unfit or managing a heart condition, build gradually and get clearance before vigorous work, as in is HIIT safe for beginners and older adults. The aim is steady improvement, not chasing a number.
Wherever you sit on the chart today, the meaningful goal is to nudge your number upward, because in doing so you are improving one of the best predictors of a long, healthy life. If you would like your fitness assessed and a plan to raise it safely, we run home-visit assessments across KL and Selangor.