Tempo, long rest, tempo

[system]

@UKcheetah

I personally can get lactic build-up anywhere up to 19s if I’ve done enough repeats (on grass)… on track or any other surface changes things completely and I’m ok in the low 16’s. But then I time the recoveries at 30s/60s rather than walking (i’m sure 50m walk is longer than 30s, also as you get more tired you tend to walk slower)

How many repeats to get “lactic” in the 19s 100m range? When I’ve timed 50m walk, the longest (towards the very end) is 45seconds rest with most in the 30-40sec range. What is the PB level?