Anyone that knows me knows that I love barbell curls, BUT it is one exercise that can lead to poor posture and rounded shoulders faster than any other. Why? The often used “inside shoulder” grip instantly promotes internal shoulder rotation. The initiation of the rep with the front delts doing the lifting out of the bottom, only strengthens an already dominant front delt. So how do you fix this? GO WIDE! Try gripping a curl bar near the collars. Not only will this get you out of internal rotation, but you’re front delts will stay out of the movement. Also, remember to fully “UNLOCK” the biceps at the bottom, and flex the triceps. Stay tall and let the biceps do the work.