Lactate and ventilatory

In performance analysis, two main approaches exist to determine physiological zones: 1️⃣ blood lactate measurement, 2️⃣ ventilatory analysis, via the VT1 and VT2 thresholds. Both can be useful. But when we talk about reproducibility — that is, the ability of a test to produce the same result under the same conditions — scientific research is unequivocal: 👉 Breath tests are significantly more reliable than lactate tests . Here's why. 1. Lactate is extremely sensitive to ex

For decades, lactate tests have been used to assess endurance performance. However, recent research shows that ventilatory thresholds , VT1 and VT2, are often more reliable , more reproducible, and more predictive of actual performance—especially in the field. This is why breathing has become a central indicator for understanding — and improving — athletic performance. 1. Ventilatory thresholds are directly linked to energy pathways VT1 and VT2 correspond to specific metabo

For a long time, the lactate test was considered the reference for determining training zones for endurance athletes. But in recent years, respiratory analysis – particularly via the ventilatory thresholds VT1 and VT2 – has established itself as a simpler, more reproducible and better-suited alternative to the field. So, can we really replace the lactate test with a ventilatory test? Here is a clear, scientific and practical analysis. 1. Lactate vs. respiration: two measureme

Comparatif des problèmes dans les tests lactates et respiratoires

Why compare these protocols? To determine training zones, coaches traditionally use: lactate thresholds (LT1 and LT2), measured via blood tests, ventilatory thresholds (VT1 and VT2), measured via respiration. Although the two methods provide similar information, their protocols are very different , as are their accuracy, accessibility, and relevance in real-world conditions. 👉 This post compares the protocols point by point to understand their advantages and limitations.

Why compare these two thresholds? When discussing training zones, two approaches often come up: lactate thresholds (measured via blood test) ventilatory thresholds (measured via respiration) Many athletes wonder: Do these thresholds provide the same information? Is one more accurate than the other? What purpose do they serve in training? Which test should I choose to calibrate my zones? 👉 This guide clarifies the differences, advantages and limitations of the two methods.