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The equilibrium point between blood lactate production and removal (La⁻ _min) and the individual anaerobic threshold (IAT) protocols have been used to evaluate exercise. During progressive exercise, blood lactate [La⁻]_b, catecholamine and cortisol concentrations, show exponential increases at upper anaerobic threshold intensities. Since these hormones enhance blood glucose concentrations [Glc]_b, this study investigated the [Glc] and [La⁻]_b responses during incremental tests and the possibility of considering the individual glucose threshold (IGT) and glucose minimum (Glc_min) in addition to IAT and La⁻ _min in evaluating exercise. A group of 15 male endurance runners ran in four tests on the track 3000 m run (v _3km); IAT and IGT – 8 × 800 m runs at velocities between 84% and 102% of v _3km; La⁻ _min and Glc_min– after lactic acidosis induced by a 500-m sprint, the subjects ran 6 × 800 m at …