My right arm is definitely stronger than my left (and I don't carry a kid or office supplies around). I think that's just normal because I'm right-handed, so I tend to use my right arm more. By the same token, my right leg is also definitely stronger than my left. Whenever my trainer has me do something new that is a little bit tricky, he always has me start with my right, because every exercise is just a smidge easier for me on that side.
When I was a teenager, I played the accordion. When playing the accordion, your right arm is stationary but you pull the bellows of the instrument out and then push them in with your left arm. The air going in and out of the bellows create resistance, making it a little workout for your left arm and chest. Thus, my left arm was noticeably stronger and my left breast was actually larger than my right because of the muscle behind it. Luckily, it the size difference wasn't really noticeable to anyone but me.
Last edited by BlueToBlue; 07-29-2007 at 07:39 PM.
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