At some point during the serve, the chest should be stretched from both sides so that the non dominant arm can initiate rotation, and the resulting rotation can initiate arm movement, right? This stretch on both sides is discussed in Sonic Serve and I think it makes sense.
Because of the ball toss, I don't think the activity of the non dominant arm is as intuitive and natural as it is in a baseball throw.
So my first question is if the activity of the non dominant arm should be given some focus during practice, or is it another one of those things that should just happen naturally?
Next, if it is true that the non dominant side of the chest should be stretched by the arm, at what point does this happen? Right after the toss? Or maybe it's not important? Roddick has some of the best shoulder rotation I've seen, but the position he puts his non dominant arm in after the toss would require him to move it quite a bit before creating a stretch.
Because of the ball toss, I don't think the activity of the non dominant arm is as intuitive and natural as it is in a baseball throw.
So my first question is if the activity of the non dominant arm should be given some focus during practice, or is it another one of those things that should just happen naturally?
Next, if it is true that the non dominant side of the chest should be stretched by the arm, at what point does this happen? Right after the toss? Or maybe it's not important? Roddick has some of the best shoulder rotation I've seen, but the position he puts his non dominant arm in after the toss would require him to move it quite a bit before creating a stretch.