Bike Workout - FTP Intervals (2x15')

Another hard 2 x 15' at FTP effort today. I felt really good on this one, though. My second interval was about 5 watts low, though. Not sure what happened, since the CompuTrainer load was constant. Perhaps it was some drift in the Ergomo bottom bracket. No brick today, as it's currently 2 degrees outside. No way I was going to run in the snow and ice this morning. I'll jump on the dreadmill later, instead.

Workout Summary

FTP Interval 1:
 Duration:   15:03
 Work:       239 kJ
 TSS:        25.2 (intensity factor 1.003)
 Norm Power: 266
 VI:         1

FTP Interval 2:
 Duration:   15:02
 Work:       234 kJ
 TSS:        24.1 (intensity factor 0.981)
 Norm Power: 260
 VI:         1
ABP:
 Duration:   7:00
 Work:       90 kJ
 TSS:        7.8 (intensity factor 0.815)
 Norm Power: 216
 VI:         1.01

Entire workout (204 watts):
 Duration:   1:00:11 (1:03:27)
 Work:       738 kJ
 TSS:        74.8 (intensity factor 0.863)
 Norm Power: 229
 VI:         1.12