If you do lactate testing, you get something like
9, 10, 11 kph at 1.0mmol lactate (baseline) and suddenly it rises to 12 kph at 1.3 mmol, 13kph at 1.6mmol lactate and so on. You got the idea, a simple example.
Question is now:
1) Do you orient your easy run on such a measurement? If so, at which lactate level (=pace) do you train?
2) Do you orient your long run (>90min) on such a measurement? If so at which lactate level(=pace) do you train?