3D Movement and Rehab on Instagram: "This is part 4 of our 5 part swim free injury prevention series. Many of the injured swimmers we evaluate have some level of core instability, often showing difficulty controlling rotation. These two exercises are fantastic for helping swimmers learn to better control rotation through their core thoracic spine and shoulder so that they can better push force into the water with each stroke. Swimmers typically rotate between 35 and 65° with each stroke in the f