Whoo...just tried an interval routine I read on the Bicycleing Mag website: 10 min warmup, 3x3 intervals w/3min cooldown between them (yes, only a partial cooldown), then cooldown for remainder of 30 min total time.
I only managed two intervals, and I thought I was in pretty good shape after an active riding season.
Somebody, tell me it'll get better please!
Note: maybe using the fixed gear as a trainer bike isn't a good idea?
Must...shower...yes, I stretched afterwards.