I just read in Velo News and I've read it, in some training books, that just going out for a ride doe's nothing for you. If you don't go out and do intervals or sprints, or hill climbs, etc. your basically wasting your time. If you go out for a 4 hour ride, at a slow pace, the only thing you've done is get yourself tired.
I'm not talking about just going out to smell the roses, like some people do. I'm talking about exercise. I cant believe your not doing anything for yourself, just riding. Are they just talking about racing or getting ready to race?
I would call Z2 pretty easy riding, Recovery or just plan riding. Your getting your heart rate up, rather than just sitting here, like I am now. I just find it hard to believe that your not gaining anything, just riding. I've gone for 4 and 5 hour rides and when I get back I'm 4 pounds lighter and they say, I'm not gaining anything. Anyhow would some of you shed some light on this. I know I must be missing something.