Yes all correct. Am I over analyzing her throwing motion?
I HAVE EDITED THE URL FOR THE CLIP TO A SITE THAT IS BETTER FOR VIEWING.
Do you have a clip of her throwing?
I see catchers from all over the country complaining about similar arm pain issues. I believe that this type of throwing motion in a contributing factor. Having the ball back by the ear positions it in such a way that when the back hip begins to rotate forward to initiate the throw the power generated by that rotation just rotates around the ball and the ball basically just sits back their behind the ear. The throwing elbow drives forward with the hip but not the ball. The hips and elbow accelerate, but not the ball.
Finally after the hips have rotated and the elbow has finished rotating out front, (giving the appearance of the elbow leading the throw) the catcher finally accelerates the ball with by flinging the forearm forward and snapping the wrist. A great deal of pressure on the elbow and the throw can have a "pushing" look to it. Some girls will finish the throw with a side arm type flinging of the forearm.
The botton line I believe is that the ball is not being accerated by the power center of the throw, the back hip.
The glove being drawn back I believe also contributes to this problem. When the throw begins I want the glove elbow to be directly ove rthe front hip. This is allow that elbow and arm to drive down along side the hip and help pull tyhe shoulders and chest forward. This opstion can only be achieved if the ball is taken out of the glove out front, not drawn back.
If the glove is drawn back then at the moment the throw begins the glove arm will be pulled back across the chest and when the rotation begins on the throwing side the glove arm will be rotated back across the chest and will most likely fly to the side pulling the glove side shoulder open early.
The clip reference below will show you a drill we use to get the catchers in the "Launch" postion I teach. The position just before the throw begins. Watch the exchange out front and see how when the front foot hits the ground, (the signal to throw) the glove arm/elbow is positioned directly over the left hip.
Click on Link Below
http://www.youtube.com/watch?v=F8tK2PPQWGA