VLamax describes the maximum rate at which your body can produce lactate through anaerobic glycolysis. It is expressed in mmol/L/s and reflects glycolytic capacity.
A high VLamax supports short explosive power but increases carbohydrate use. A low VLamax can support long-distance endurance and stable pacing.
The gold standard is a short all-out sprint test with lactate measurements afterwards. There is no validated step-test estimate (Quittmann 2025), so LactateThreshold does not offer one.
VLamax influences where LT1 and LT2 settle. Higher glycolytic activity can lower sustainable threshold power or pace.
Long aerobic training below LT1 and less frequent sprint/HIIT work can lower VLamax over months.
Calculate VLamax yourself — free
With LactateThreshold you calculate VLamax directly from your step-test data.
Start demoGood depends on the event. Long-distance athletes often benefit from lower values; sprinters need higher glycolytic capacity.
No. VLamax is only validated from a 10–15 s all-out sprint test with lactate sampling (Quittmann 2025); LactateThreshold deliberately offers no step-test estimate.
Typically months of consistent aerobic training with reduced high-intensity sprint work.
Their training emphasizes long aerobic volume, which tends to reduce glycolytic capacity over time.
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