An isolation arm exercise performed lying chest-down against a preacher bench while holding a barbell with an underhand grip. The upper arms remain fixed against the angled pad as the barbell is curled upward by flexing the elbows, maximizing tension on the biceps while minimizing momentum. The movement is completed with a slow and controlled lowering phase to fully stretch the arms and maintain constant muscle engagement throughout the range of motion.
Log your barbell lying preacher curl sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.