I had a tb mare a long time ago and she would buck and buck all the time. I got a chiro out (everyone seemed to be using this one guy at the time so it seemed like the thing to do) and he said she had a few vertibrae (sp?) out. He put them "back in" and I really do think it made a difference. I had him out regularly (I think once or twice a month) and she got better and better. Or, looking back, it could have been the training that was making her get better and better. Who knows? lol. I have not used a chiro in recent years. I do use massage though. My horse sure tells me he loves it. I know I love it