did 8x400 1 min rest
1:26 1:23 1:18 1:16 1:13 1:11 1:07 1:07 (Trainers)
did 8x400 1 min rest
1:26 1:23 1:18 1:16 1:13 1:11 1:07 1:07 (Trainers)
damn what's with the crazy splits?
I say 4:38-4:45
I tend to use my first couple as a warm up. I go until I dont improve on the next rep.