Eric Roberts shows how small changes in grip width and movement angles target different upper body muscles. Close-grip rows hit the middle back, wide-grip hits the upper back. Chest flies higher or lower shift emphasis between upper and lower chest. Never do shoulder raises straight out to the side, he warns, it damages your shoulders.
Chapters
When you do rows with your hands close together, you're going to work more of the middle of your back. When you do rows with your hands out wide, you're going to work more of your upper back. When you do chest flies from up high, you're going to work more of your lower chest. When you do chest flies from down low, you're going to work more of your upper chest. When you do face pulls to your chest, you're going to work more of the middle of your back. When you do face pulls your nose, you're going to work more of the back of your shoulder. When you do shoulder raises out to the corner of the wall, you're going to work more of the side of your shoulder. And when you do shoulder raises directly out to the side, don't do that shit because it's going to fuck up your shoulders.