Thoracic Rotation Stretches for Golfers, Tennis Players and Baseball Athletes Rotational sports require more than simply twisting harder. The hips, pelvis, trunk, rib cage, upper back, shoulders, and arms must share motion and transfer force in the correct sequence. When the middle and upper back do not rotate comfortably, the body may attempt to create that motion elsewhere. Common compensations may include: Excessive lower-back rotation Shoulder strain Loss of hip control P