Single arm curls to failure! I usually either started or finished off my biceps with this exercise. I felt it better to totally isolate first with either these or concentration curls, before going onto ez barbell curls. Often on machine based exercises, I closed my eyes to truly feel and visualise that connection with the muscle… total mastery of each rep and here, three phase failure. #MrOlympia #Bodybuilding #Gym #Training #Biceps