Biking48:00 12.55 mi (3:49 / mi) +332m3:32 / mi ahr:133 max:142 weight:176lbs
P=154, C=88 FTP Booster Week 4 Day 4 Decided to move my FTP from 187 to 190 before this workout, which turned out to be one of the more challenging workouts for me. The key portion was a 30 minute stretch which was at a base of 173W, but after each 2 minutes required 30 seconds at 228W. HR was off early but by the time I started the main interval, it matched what the Fitbit was recording, so I really did spend a lot of time in the upper 130s for a change, and the overall average is a guestimate.