Last year I started VO2 intervals on 2/5 so I figured it was about time to get em started. Last year I eased into them...shortening the # and intensity and built up over a few weeks. Tonight I just wanted to go for it so I shot for between 115% and 120% of FTP and did 6 intervals (5 1/2 actually). These were 4' on/4' off. I'll build up to 5' soon.
My legs still felt tired from this past weekend so it was a struggle to maintain the wattage at times...these intervals have a lot of ups and downs mentally. If you're going poorly they can really suck.
The wind was howling with 30mph gusts so on tank hill I would round the corner and get killed by the cross wind. It was hard to keep a rhythm so after 2.5 intervals I headed up to the last climb on Dixie where I had a cross tailwind which made it much better and I knocked out 3 more. I don't have the download yet but I averaged around 325w for each of the intervals. Considering the wind and my negative TSB I'm happy with that.
I'm looking to doing a couple days of 2x20's at the crit course this week starting tomorrow.
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