Peter Attia· MD
so even if you do the same power for four consecutive workouts you can have different heart rates and you can have different lactates.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
so even if you do the same power for four consecutive workouts you can have different heart rates and you can have different lactates.
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So for example, if you don't sleep well and your heart rate's higher, you're not recovered, your heart rate's higher, you're under more stress for some other reason and heart rate is higher, lactate tends to follow it even at the exact same power output.
So if you look in the graph that the audience can see later, when we look at the graph of the lactate and the heart rate, they go side by side. When heart rate goes up, lactate goes up.