Expando-Quads?

[zoom-zoom]

I keep waiting for Hans and Franz to bust into the thread and start telling us how they're going to pump us up.

[Owlie]

What do you guys think muscles pump up with? Air? It's water! (or fluids anyway)! For every molecule of glycogen in your muscles, there are two molecules of water (I think that's the right ratio). It's different than general body bloat that you might get from salty foods or hormones...

And yes, I get this in my legs too. I would NEVER do a heavy lower body workout (or a tough hill-climbing ride) the day before weigh-ins as my legs can hold onto fluid for a couple of days after a tough workout. For others, it's just overnight. Depends on your body.

Glycogen binds about twice its weight in water. But if you're burning that glycogen...Time to go find a physiology book rather than a biochem book. I suppose it just sits there for a bit until the cells get rid of it?

[marni]

I love my zoots tights and wear them a lot= Thank goodness for the ac!they definitely help me avoid next day aches and stiffness.

[WindingRoad]

I have the big quad thing going on too. I'm pretty mine has a direct link to the new hilly terrain I'm in though, LOL. I have a 3 mile commute (one way), three miles, that's it! Of course there really isn't a flat spot on it and on the way home there is a monster climb. I have been working on staying standing the whole way up it. Wednesday was the first day I got close! Dang with all my stuff in my panniers I'm barely able to carry the bike down the stairs in the morning. I think this may be my new quad issue.

[OakLeaf]

I always thought it was mechanical, not biochemical - a process that winds up as compartment syndrome ("arm pump" etc.) in extreme cases. Repeated hard contractions making the muscle get kind of "stuck" in its hard, flexed position. It's not burned glycogen that turns your biceps into a tennis ball when you're showing off in the mirror...