I'm reading The Time Crunched Cyclist and trying to work out a training plan for a century later on this year. I am having a really simple problem understanding the overunder (OU) interval shorthand. For a ride listed as:
90 min. EM with 3 x 12 min. OU (2U, 1O) (8 min. RBI)
What does the
(2U, 1O) designation for the OU interval refer to?
I know I'm supposed to do 3 repetitions of 12 min. at some pace with 8 minutes in between. But what is that timing/pace -- how long under and how long over? I can't seem to find it explained anywhere in the text.