I am very conscientious about working him evenly on both sides, so I really doubt that I am the cause of the unevenness. When he is turned out, if he does not have enough grass to munch on, he will circle, to the point where he digs a trench (his last trench was at least five inches deeper than the surrounding ground!). The barn manager tries to keep him in an area with enough grass, but this is not always possible...in those cases he does gets plenty of hay. Anyways, his circles are always to the right, never to the left.
Now for his unevenness...it is his right shoulder that is more pronounced. When the vet came out last week for vaccinations and accupuncture, I asked her if a horse circled more to the right than the left, which side would she expect the larger muscle to be on. Her answer was the left or outside muscle. I asked the same of my instructor and farrier and they guessed left too. But it is his right side that is larger!!!
SO I am confused. Is it possible that his unevenness is caused by the circles he does...or should the left side be larger as a result? And he is uneven for another reason. I worry that if this is the case will doing more work in the left direction help or hurt the situation?
Can anyone confirm which muscle should be larger as a result of circling right?