Dips are a popular exercise for increasing triceps strength. Conventional Dips are great. But things get a bit dicey when you start looking at the variations.
Tony Gentilcore, co-founder of Cressey Sports Performance and owner of CORE training studio, says, "Bench Dips cause maximal internal rotation and glenohumeral extension, which is a recipe for disaster." This is particularly problematic for athletes who have a history of shoulder problems or who play an overhead sport such as tennis or baseball.
Dr. Colberg adds that Weighted Dips present similar problems, because your arms ultimately travel behind your body. "This puts an incredible force through the ligaments in the anterior shoulder, and it pinches the rotator cuff and long head of the biceps tendon," he says. "Doing this motion repetitively may lead to tears of the tendons or ligaments."