vLamax Calculator

Use this calculator to estimate your vLamax and CHO & FAT utilization.

Make sure to complete our Vo2Max test first: Link

Download the test protocol - Garmin:  Link    Zwift:  Link


Keep in mind that this formula is a rough estimation, and it may not accurately represent an individual's actual VLAmax. It's always preferable to have VLAmax measured directly in a lab setting, but this formula can provide a starting point for athletes and coaches who don't have access to such facilities and want a rough estimation of their anaerobic capacity.

Please note that the accuracy and applicability of this formula may vary depending on the individual's physiological characteristics, training status, and other factors. As with any estimation, it should be used with caution, especially when making important training or performance decisions.

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Mader, A., & Heck, H. (1986). A Theory of the Metabolic Origin of “Anaerobic Threshold”. International Journal of Sports Medicine, 07(S 1), S45-S65. https://doi.org/10.1055/s-2008-1025802

Mader, A. (2003). Glycolysis and oxidative phosphorylation as a function of cytosolic phosphorylation state and power output of the muscle cell. https://doi.org/10.1007/s00421-002-0676-3

Hauser, T. (2014) Comparison of calculated and experimental power in maximal lactate-steady state during cycling. https://doi.org/10.1186%2F1742-4682-11-25

Code explained on GitHub

Alpha Build March15 23 - © Kona Endurance LLC