A blog by runners. For runners.

Lactic threshold training runs

What is a lactic threshold run?

Definition of lactic threshold We need oxygen like a fish needs water. When our bodies move at a rate faster than we can deliver oxygen to our muscles, we summon energy anaerobically. A byproduct of this “borrowed” energy is lactate, which increases acidity in our muscle cells and slows our movement until we can regain […]