Power and Sickness

Two weeks ago I was self diagnosed with a bad cold. Runny nose, lethargy, and perhaps a low grade fever. Luckily that week was designated as "rest" week. It took me the better part of the following week to begin to feel like myself. I could tell I wasn't 100 percent. I had the occasion to compare two identical exercises on the trainer. One when I was recovering, and one when I felt 100 percent. I knew there was difference when I started the routine feeling well, because I had difficulty stressing myself at the same cadence/gear that week prior put me at AT. I took the time to compare the routines, and what I see is that when I felt well, my HR was the same or lower compared to when I was recovering, yet I could consistently put out about 30 to 40 more watts. Thats a huge difference. In the following picture the Heavy lines are the one associated with me feeling fine, and the lighter lines are when I was recovering. The red ones are HR, the grey ones are power, and the green ones are cadence. You will see the cadence is about the same on the two dates but the power is significantly more when I felt well and the HR are close but I was always just sub AT and putting out more power. Here is the picture.