Which major for sports medicine
it doesn't matter. sports medicine is a fellowship and is a long ways away from a pre-med. choose the major you enjoy. personally, i was ExSci and I loved it.
You are a LONG way away from sports medicine. We are talking 4 years of UG, 4 years of Med, 3-5 years of residency (maybe gen surg or ortho) then 1-2 year fellowship in sports med. And you're going to have to be an allstar every step of the way to get there.
+1
Major in whatever major you are most passionate about.
If you refuse to do that, choose a major which will prepare you the best for the next step, which is medical school, not anything sports-medicine related. My ex-gf was an athletic training major, and from the ridiculous simplicity of many of her courses, I'm pretty sure that a tough science major will give you more useful background information than athletic training will. On the other hand, AT does give you quite a bit of hands-on experience...
I am currently a OMS II and was an Athletic Training/Physical Ed. major. "Ridiculous simplicity" may have described some of the beginner classes, but definetly not Anatomy & Physiology, Exercise Physiology, Kinesiology, and all the advanced Athletic Training courses. Not to mention all the pre-reqs for medical school.