Lactate Testing, Zone 2, and Metabolic Flexibility with Stephan Nüsser and Prof Paul Laursen

Lactate Testing, Zone 2, and Metabolic Flexibility with Stephan Nüsser and Prof Paul Laursen

January 2, 2026

Listen to the episode now or find us on Spotify and Apple Podcasts.

Show Notes

1. Rethinking lactate in endurance training
Why lactate is not a waste product, how steady-state concepts improve interpretation, and what practitioners should actually look for when profiling athletes.

2. Finding true Zone 2 and threshold intensity
How long-step lactate testing helps identify the first meaningful rise in lactate, avoiding common errors that push athletes too hard in aerobic sessions.

3. Carb-optimized nutrition and metabolic health
How aligning fueling with training goals can support endurance performance, fat metabolism, and long-term health without extreme carbohydrate intake.

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