Wow, you really miss the Point! I said "compare this to Ovenicks diagrams of the workings of the legs". Nothing to do with shoes v no shoes or navicular disiese---toe first - heel first.
Your horse may very well have navi troubles, at that age and a sway back I would not be surprised. There´s probably a lot of things going on there.
The horse is in pain.
I can understand shoers won´t come out and I suspect they and several vets have told you what has too be done.
Her horse has a history of founder/ laminitis issues, not navicular. And horses with navicular pain land TOE first. Also in the other video you found, both shod and unshod show a heel first landing, so what is the point of that video?
AND given that a LOT of researchers (NOT Ovnicek..but rather veterinary scientists) have shown the clear correlation of a toe first landing and it's impact of the short pastern bone slamming onto the top of the navicular bone) ,I think there is enough data from various researchers around the world looking at various parts of this puzzle is certainly strong enough to put together and say there is a correlation .
So if you believe a toe first landing has nothing to do with navicular, please state exactly why it is not a factor, in terms of what happens onside the foot when it lands that way. Explain to me what happens inside the foot when the foot lands toe first and why it is that is NOT affecting the navicular bone negatively.
Frankly Amigoboy I feel that you are going to automatically dispute ANYTHING that is put out to the world by Gene, the ELPO ,or any barefoot trimmer or any researcher that disputes the old stuff you and I were taught.