The EGYM BioAge is a comprehensive fitness and health indicator that combines a wide range of user measurements into an easy-to-understand BioAge that can be compared to a member's physical age. Within the EGYM BioAge, you can find your Cardio Age. This Cardio (Cardiovascular) Value combines the resting heart rate, blood pressure, and VO2max. It gives an overview of cardiovascular capacity, performance, and health. And now, the Cardio Age is more accurate than ever before. 

What has changed? 

Our large-scale data analysis showed that the previous formula gave unrealistic, high results, particularly for younger members. This meant that it was often very difficult to match your Cardio Age to your actual age, with results often skewing much higher.

 Now, the calculation is aligned with the actual average VO₂max values of users, which means: 

• Younger members will now see younger Cardio Ages, better reflecting their true fitness.
• Older members (55+) will also benefit from fairer results, even if these are slightly older.
• The overall correlation between real-world VO₂max and estimated fitness has significantly improved. 

This is not a bug fix; it’s a scientific update based on real-world evidence. 

Why have we done this? 

• The previous calculation relied on outdated VO₂max norms from athlete populations.
• Our new model is based on over 130,000 EGYM Smart Cardio tests and comparison with Apple Watch data from the last 2 years, reflecting real fitness levels in gyms today.

• The goal: Motivation through accuracy. When the score matches effort and progress, members stay engaged and confident in their training. 

   

How we analysed the data 

Before refining the Cardio Age formula, our data science team analysed 130,000 Smart Cardio tests from EGYM users worldwide over the last year. The chart below visualizes real user data; each point represents an individual test result, and shows how our new model is grounded in actual performance patterns observed across different age groups. 

How will this affect your members? 

Some members might see a sudden change in their Cardio Age, often becoming significantly younger. This doesn’t mean they improved overnight; it means the calculation now represents reality better. In other words, members are not suddenly fitter; more, their Cardio Age is more accurate and a better reflection of their actual fitness. 

How to explain this to members 

When answering questions about Cardio Age from your members, talk about how EGYM has updated the Cardio Age formula to make it more accurate, as the previous calculation was less precise and unrealistically high, especially for younger members. Now, results are based on data from thousands of real users, so Cardio Age is a fairer reflection of true fitness.