I've been looking around online for different ideas/methods for helping my horse with his neck arthritis and SI issue. This is all looking toward the future once we determine whether it's the SI or neck that's bothering him (or possibly both). In the process, one of the ideas I came across was using weighted boots or something similar around the hind legs to improve proprioception in the hind legs and also increase mobility in the hip, stifle, hock, and ankle. I'm curious about this because the vet noted that he has some slight issues when his head is up and he's moving forward with proprioception in both hind legs. Would this really work for in-hand exercise? Use of trot poles at irregular intervals I've also seen mentioned for similar reasons.