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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.

Why talk about ventilatory thresholds? Most athletes train using training zones. These zones are directly linked to your physiology and to the way your body produces energy: lipid-based aerobic metabolism, carbohydrate-based aerobic metabolism, or anaerobic metabolism. This physiology can be evaluated in two ways: by measuring blood lactate or by analyzing your breathing, which reflects in real time the balance between these energy pathways. This is exactly what ventilatory t