Interesting on one of my rides yesterday in that it was a 40k session but I started to get hungry mid way through.. only thing was I was nowhere near the kitchen or fridge so couldn't get any food. Anyway as the ride continued I could see my watts slowly dropping for what seem more effort.
I have never been able to see that happening when riding outside.
Sometimess I have felt like i'm losing power when out but to actually see it happening on the screen I thought was interesting. The beauty of smart gear eh.
Or is it because I'm getting old, but in my head i'm still 25?
Moral of the story I guess is to take something top eat next time. And my legs still ache