For the rotator cuff impingement exacerbated by bench pressing, make sure you retract your shoulders and keep them that way during your bench press. I.e. pull your shoulder blades back together. This will promote more of an arched posture and posteriorly tilting the superior scapula and keeping the subacromial space open. I.e. giving your supraspinatus plenty of room to move during your bench press.
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