>Does anyone have an understanding of how and/or why
>weight bearing exercise can increase bone density? I
>understand how muscle mass in increased (damage to
>muscle cell, body repairs and overcompensates - a
>simplistic explanation), but that doesn't seem to
>relate to bones.
>
>I did a few searches, and the only "explanation" I
>could find is that exercise promotes mineralization in
>the bones. I'd like a little bit more enlightenment
>than that, if anyone knows....


Well, I can offer another terribly simplistic theory about bones, then. The
weight forces the bones to flex a tiny bit, and the body adapts to the
stress by making them denser and more resistant. Do not bones become
increasingly dense with maturity, until "aging" starts eating them away?
Given adequate nutrition, perhaps they just keep on getting stronger with
use. Animal bones are denser in older animals...

ginny and Tomo

All stunts performed without a net!