I can relate to the new found muscles. First spinning and now cycling really have done a job on my quads... I was one of those knobby knee'ed apple shaped women who looked like a 4 year olds drawing - you know, big round body, two wimpy sticks for legs!

No matter how much I lifted or worked out, I could never build any quad muscles... but now I have! And I'm thrilled! They aren't big, but they're there.

I remember a few months ago, a coworker came to a spinning class with me. I took off my sweat pants and she remarked at how "skinny" my legs are. I dunno, as an athletic person, skinny really isn't what I'm going for. Especially since the rest of me certainly ain't! :P