Fitness
Ventilatory Threshold
Ventilatory threshold is the intensity where breathing accelerates sharply as lactate rises—key for setting cardio zones and sustainable hard effort.
Ventilatory threshold (VT) is the exercise intensity where breathing rate jumps disproportionately as lactate and CO₂ rise—often near lactate threshold in trained athletes. VT1 marks aerobic steady state; VT2 marks hard sustainable effort.
Field tests use talk tests and heart rate trends when lab gas analysis is unavailable.
Common questions
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How is ventilatory threshold different from lactate threshold?
They often occur near each other but measure different signals—breathing vs blood lactate. Both guide hard training zones; use consistent field tests if you lack lab access.
Related terms
Put Ventilatory Threshold into practice
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