FWIW, I have the same thing happen each year when I begin rollerskiing.
Cycling basically neglects most of the muscles above the waste and I
go from 210 to 220-225 each season (I'm 6-6"). I'm wondering how much
of the gain is from increased bone density; there's been some recent
research on increased bone density from weight-bearing exercise, but I
haven't seen anything about how much weight that would be. I do feel
more buff now than in August...

chris

See you at the Birkie?