Stationary bike at work for 60 min in the morning at work, listening to music. Same time, level, and distance ridden as the previous week, but I felt like my exertion level was lower, and that was borne out by my average heartrate, which was lower by a full 10 bpm.
Level = 13
Avg heartrate = 145 bpm
Calories burned = 780
Distance = 22.2 mi
