Monday, February 08, 2010

Does Exercise Affect Mineralization?

Paul Hansma (left) in 6/09 used his bone diagnostic instrument to find that 21 days of consistent exercise measurably "strengthens" mouse bones. And thus, this blog may quit our ceaseless bellyaching about lack of research on the point. Exercise affects the structure of mouse bones, and we need determine the whats, whys and wherefores, never mind that a little research on some larger animals might be helpful.

Through much jiggling about, this blog previously concluded there are at least two major bone changes resulting from our horse galloping at speed (12.5 sec./f or faster over 4f or more):

1. increase in Hansma's bone glue. Others call them bone glue proteins. I more suspect they are gunk left over from bone metabolism. and 2. mineral lattice compaction at the nano level. Both these effects seem temporary and would need to be reinforced by subsequent speed work within 8 days with an ideal spacing of 4 days.

After Planck, it's obvious we also need consider mineralization, and whether exercise affects this crucial process. Planck indicates that at best 1/2 of our horse's cannons are water, and that even deep in the mineral lattice at the nano level we have a packing pattern of HA crystal-water-Ha crystal-water, and so on. For FR we need maximize mineralization!

Hansma with his mice claimed exercise affects strength, but leaves e.g. elastic modulus and hardness unaffected. Let's note this particular research but scratches the surface of measuring bone material qualities--the elastic properties--as determined in materials science. I'd doubt Hansma fails to know more than in the most general sense, the effect of exercise, and so we still need answer: how does exercise affect mineralization. Next post.

Training:
Fri. 2/5: Off
Sat. 2/6: Riderless paddock work 8 x 2.5f several of them full speed. Mud and snow ideal combo for running.
Sun. 2/7: Riderless paddock work 3f x 7 as fast as they could go. The heavier horse, Rod, struggles with this volume a bit, but we're encouraged he continued to compete. A bit of a bench mark were we are having recommenced training 2/2.

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