Just throwing to warm up the arm is out right stupid. This is not something that helps get the arm warm at all or prepares it for high speeds. What all of use need to teach kids from a little age is to us the tubing exercises to get there arm ready to throw the ball. Kids now and days take there arms for granted.
I can tell you the reason more and more kids are having arm problems and it is because they don’t do the tubing exercises before the game and after to help the arm prepare the arm and then strengthen the arm after the game.
Coaches are the problem also because they don’t notice that kids need to do tubing exercises between starts to keep there arm strong for the next game. So that they can hit peek performance on game day.
I have been doing tubing exercises now after my elbow injury and I can say that it has saved my life from an injury like that again. The other day I pitched on Sunday threw a lot and then on Monday was tired did some tubing felt a little better the next day I had practice I was still pretty sore but I went to practice did some tubing then some light throwing and the soreness went right away this is proof that it does work and you don’t have to have a sore arm anymore.