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Boost Running Performance: Improve VO2 Max in 6 Weeks!

10/2/2025

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Summary

Story summary

VO2 max (maximal oxygen uptake) is a key determinant of running performance.
It can be tested in labs or estimated from smartwatches and heart-rate data.
Regular interval training, including HIIT, can improve VO2 max in about six weeks.
Balance these workouts with easy running or rest days and target 90–100% of max heart rate.

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Story summary

VO2 max (maximal oxygen uptake) is a key determinant of running performance.
It can be tested in labs or estimated from smartwatches and heart-rate data.
Regular interval training, including HIIT, can improve VO2 max in about six weeks.
Balance these workouts with easy running or rest days and target 90–100% of max heart rate.