Starting Position: Load the barbell with the desired weight. Stand in front of the barbell. Bend at the knees to grasp the bar with palms facing away from the body, behind the back.
Performing The Exercise: Stand up straight and allow the weight to roll low on the fingers. Then curl the weight back up into the hand, flexing the wrist up toward the elbow, using just the forearms and keeping the arms straight. Then slowly let the weight roll back down to the fingers and repeat the movement.
Tips: Avoid shrugging the shoulders or leaning forward. Let the weight roll as far down into the fingers as possible for a full range of motion. Squeeze the contraction at the top of the curl.