While I agree it is fallacy, I think part of the reason for that “myth” being perpetuated is many young athletes open and close at the elbow and think they are actually moving through quite a range of motion at the shoulders SO a way to get movement at the shoulder is to “lock” the elbow, that way movement must be at the shoulders.
I think the trouble is if the word “only” is used.
Might be true but my observation tells me most coaches go overboard with it and end up spending a lot of time coaching something that WILL NEVER HAPPEN and if it ever did would be detrimental to performance.
I’m serious when I say it won’t happen even if you try. You might be able to get closer to a static angle but the human body is smart enough to never let the arm angle stay in a static position even if the brain is dumb enough to tell it to.
ELITETRACK Founder