I hope you don't mind if I chirp in....
I did intervals yesterday on my ride and notice if nothing else it gave me something to concentrate on besides just the usual. I finished the ride saying to myself; "self you've got to do that more often."
Eh, I talk to myself a lot.....anyways I really do think it helps develope endurance, strength and keeps the road from being so boring.
Ride on sista!
Life is like a 10 speed bike, we all have gears we never use.
Charles Schultz
"The bicycle is just as good company as most husbands and, when it gets old and shabby, a woman can dispose of it and get a new one without shocking the entire community." — Ann Strong, Minneapolis Tribune, 1895