So this morning I felt guilty because I was too tired and lazy to get on the trainer last night and insteqad watched Zack & Miri make a porno. Funny movie BTW...
So this morning I got on my Fortius and did a quick 26km ride and noticed that my HR was almost 15 beats lower than it normally is when i have dome the same ride at night. I had not eaten nor had any coffee this morning. I usually train around 8pm or later and have geberally consumed at least one large Tim Horton coffee during the day. Today I could not go over about 158bpm (I'm taking it easy these days because I hurt my back...siatic (sp?) nerve) and usually I can get it up around 170-172bpm. Also i was at 135bpm for quite some time and had to push harder than normal to get it up in the 150's.
Is that normal? Anyone else have that happen?