FAQ
Frequently asked questions
Is this the same as a lab VO₂ max?
No. These are field estimates. Lab tests measure gases directly.
Which method is “best”?
The best method is the one you can repeat safely and consistently. Hard run tests often track performance closely; resting HR is gentler but more sensitive to stress, caffeine, and measurement error.
Why did my category change after a small difference?
Category cut-points are thresholds. Near a boundary, 0.5 ml/kg/min can flip a label even when fitness barely changed.
Do you sell supplements?
No. This site does not sell supplements or promote training-gear affiliate products.