
Base Training is not about riding slowly all day.  But rather, this phase of training should be renamed Tempo training.   That's the main focus:  progressing from Endurance to Tempo Pace.     The Tempo Pace varies from 76% -90% of Threshold.    The starting percentage depends upon the current fitness level.   The Excel spreadsheet shown is my exact workout for week 1.    The intensity of Tempo is higher during the weekdays due to shorter workout times, while the tempo intensity is lower on the weekend due to the availability of longer workout times.   Tempo is a constant intensity without stopping and taking breaks.    Just ride for that entire prescribed amount of time in the intensity range.   The following weeks of Base is similar, except the amount of time increases, as well as, the intensity.   But, the tempo intensity never exceeds 90%.    
A typical workout on Tuesdays starts with 15 minutes of warm-up (recovery pace), 15 minutes of endurance pace warm-up, then the main set of 30minutes of tempo (76-90%), and finishing with 15 minutes of recovery pace cool-down.    Recovery 0-56% threshold, Endurance 56%-75%, Tempo 76% -90%.     It's all about a proper warm-up and cool down.
 






