Standing trunk rotations without a medicine ball. To make a standing trunk rotation easier, you don’t have to use a medicine ball at all. In this variation, ...

Young baseball pitchers who do not have proper trunk rotation sequence while pitching may have an elevated risk of shoulder injury due to greater forces and angles placed on the joint, according ...

If this move is too difficult, start with a standing trunk rotation. Hold the ball at chest level, close to your body, and rotate your torso to the right and left. Forward underhand toss.