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> Use this file to discover available pages before exploring further.
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# How do I define my personalized zones?

For runners who have performed a performance test on the treadmill or off-road, it is possible to define personalized zones under My profile (icon at the bottom right of the menu)> **My physiological data > Advanced heart rate settings.**

If the user defines their own zones in the advanced settings, the MAS entered replaces the [MAS calculated from the competition results.](https://en.run-motion.com/mas-endurance-vo2max/) The training pace is then calculated on the basis of this manually entered MAS.

As endurance is no longer used to [calculate training pace](https://en.run-motion.com/how-to-calculate-your-training-pace/), endurance is no longer displayed in My Profile.

**It is possible to ‘reset’ these personalized zones to return to the automatic calculation of MAS and endurance.**