I have a question about my 18 yr old quarter horse that has recently developed some stiffness in his right shoulder. However, he only exhibits this stiffness in the indoor arena. When riding in the indoor, he does not seem stiff at a walk, but at a trot it is quite noticeable, and he refuses to keep a right lead canter for more than a few steps. While riding him in the outdoor ring or hacking him in the back pasture, he's perfect - no stiffness, perfect canter on both leads, perfect trot.
The indoor ring is a sand/clay ring while the outdoor is a limestone ring..does that make a difference? I've tried using Absorbine on his leg and shoulder but that hasn't seemed to make any change. I do not have enough money to have a chiropractor out. Is there anything I can do to make him more comfortable in the indoor (stretching, more liniment) or does it seem like just a footing issue?