By activating both the long head and short head of your
Are concentrated curls better?
Concentration curls
Arguably the most efficient exercise in yielding maximum bicep growth, a recent study by the American Council on Exercise found that the seated concentration curl yielded 97% bicep activity in contrast to EZ-bar curls (wide grip 75%; narrow grip, 71%), incline curls (70%), and preacher curls (69%).
How often should you do concentration curls?
He recommends training bi's two to three times a week, with 48–72 hours between sessions for recovery. “But to really get size, include concentration curls at least once a week.”