The brachialis muscle is located beneath the biceps and is responsible for elbow flexion. By targeting this muscle, you can increase the size and definition of your upper arm. One effective training program for building the brachialis was developed by IFBB Pro Trainer, Charles Glass, and is called “Built by Broser.”
The program emphasizes heavy compound movements like the hammer curl, preacher curl, and reverse grip curl, which effectively target the brachialis muscle. The program also includes isolation exercises like the seated dumbbell curl and incline dumbbell curl to further emphasize the muscle. By incorporating these exercises into your routine, you can build impressive arm size and definition.