These Over and Under intervals are a lactate threshold workout with surges or accelerations to simulate the racing demands of taking a turn at the front or being in a breakaway. As an indoor workout, it's very engaging as you keep changing the intensities. Recommendation for this type of session:
-Ensure you have tested your for FTP/FTHR recently in order to have accurate training zones.
-The shift in intensity is subtle, don’t jump or accelerate too quickly.
-Keep your pedal stroke smooth and at a comfortable cadence for you to hit the numbers
