5min @ 75% FTP
Duration: 1h 30m
Stress points: 92
Z2: 1h 14m
Author: C.O'Hearn ZHR Masters
A variation on the Aerobic base endurance rides.
Try to get HR down to Z2 (about 70-72% max) in between the intervals, even if it means slightly lower power.
Good for getting in some endurance time while also building up fatigue resistance.