Has anybody's daughter experienced a tingling in their fingertips when they start cutting their arm circle shorter on the riseball? By cutting, I am talking about more of a "upside down egg shape " appearing downswing thru whip and release on a riseball vs. a more circular downswing. My daughter spent the past 6 months on the circular motion and now her pitching coach is having her try out the sharper cut. Everything is the same in the motion, he is just having her try and pull it down sooner. He warned her of this ahead of time and is consistently asking her if she is having that feeling. He warned of the possibility of feeling tingling in her fingertips and what to do to avoid it. He said that it would be caused by a hyperextension of her arm and that she needed to be aware of this. She picked up quite a bit of speed on that pitch by doing this and is not having any tingling but I still wanted to see if others daughters might have had this feeling sometimes. He acted like he wished she was a little older/stronger before doing this (she's 13) and was very particular about her remaining aware.
I see college pitchers whose arm circles look like this. Any thoughts?
I see college pitchers whose arm circles look like this. Any thoughts?