Horse/Human Bone Remodeling

If we take a wild guess and suppose that understanding bone remodeling might be useful/crucial in injury prevention, and acknowledging the paucity of equine studies(last post) the blog launches straight into the RR theory of equine bone remodeling. This will be assisted by available googled human studies such as the illustration above that summarizing basic simple concepts.

The blog noted in the past that at any single moment about 4% of the human skeleton is under construction. As most living tissue, bone undergoes continuing regeneration which at its most basic level consists of osteoclasts tearing down tissue and osteoblasts rebuilding them by creating units called Osteocytes which form larger solid cylyndrical units called osteons. Lengthy osteon fibers rest together to form bone.

Human bone additionally remodels in response to physical stimulus. Take e.g. the recreational six mile human runner generating along their tibia 2-3000 lbs/sq. inch for the 3000+ strides of their run. During the run we can postulate within the bone tissue squeezing, pressure, heat build up, and the accordion effect of engaging and releasing every stride. This is what activates the chemical, electrical, physical load signaling that in turn causes the measurable remodel reactions in individual bone cells and in groups vis a vis their immediate neighbors.

After such a run I'm guessing then the osteoclasts get busy in response, and if that run repeats every day the tear down/rebuild process stays active until sufficient bone is built up to completely absorb the particular stress of the event.

HOWEVER, may we postulate the exceeding tameness of bone remodel for the six mile human recreational runner compared to processes that happening in the cannons of our speeding racehorse. Canon bone remodeling, I'm thinking, has to differ significantly from human osteoclast-blast remodeling. How, next post.

Training:
Mon. 2/16. Riderless warm up then 2f full speed riderless in paddock. Each horse then tacked about 1.4 miles on inconsistent barely thawed pasture including galloping twice up the 30 degree 1.5F hill and some additional gallop. What we might have done anyway despite the weather, but today we'll need some drying or we're going backwards.