Hands close on the bar to shift the load to the outer biceps.
Keep your elbows locked in place, the narrow grip does the work not your shoulders.
Gripping the inner camber of the EZ-bar puts your hands close together at a slight angle, which biases the long, outer head of the biceps, the one responsible for peak. The bends in the bar also spare your wrists the strain a narrow straight-bar grip creates. It is a simple lever change that makes standard curls feel new and targets the part of the arm most lifters want more of.
A narrower grip shifts emphasis toward the outer, long head of the biceps. A wide grip biases the inner head, so rotating grips across a training block covers the whole muscle with the same bar.
A narrow grip on a straight bar forces your wrists into an awkward, fully twisted position. The angled sections of the EZ-bar let you grip close without your wrists paying for it.
Lighten the bar and pin your elbows to your ribs for the whole set. If your elbows drift forward at the top, your front delts are stealing the squeeze from your biceps.
