Forearm Strikes: Drills for the Heavy Bag

"Striking with the inside of the forearm is similar to throwing a roundhouse punch and striking with the outside of the forearm is a similar motion to the backfist," says Loren W. Christensen, author of Solo Training and Fighter's Fact Book. "When striking with either side, it’s imperative that you keep your arm bent to prevent injury to your elbow joint."

Here are two simple forearm strike drills that Loren suggests adding to your heavy bag workout:

Forearm from behind

Face your imaginary opponent in your fighting stance. Step forward and drive a right reverse punch into his chest, followed by a left elbow to his ear. Whip your right arm around behind his head and snap the inside of your forearm into the back of his skull. He can’t defend against the elbow because he can’t see it. Work to make the combination flow smoothly.
Air: 3 sets, 10 reps – both sides
Bag: 3 sets, 10 reps – both sides

Forearm to nose

Face your imaginary opponent in your fighting stance, left leg forward. He throws a reverse punch that you slap to the right with your lead hand, but he continues to move forward, and before you can retract your blocking hand so as to backfist him, he is too close. No problem, you still have the outside of your forearm, which you ram into the point of his nose.
Air: 3 sets, 10 reps – both sides
Bag: 3 sets, 10 reps – both sides