Reverse curls

Stand with the legs slightly apart and arms extended and grasp the bar with an overhand grip (with the thumbs facing each other):

• Inhale and raise the forearms by bending the elbows.
• Exhale at the end of the movement.

This exercise works the extensor muscles of the wrist: extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor digiti minimi, and extensor carpi ulnaris.
It also acts on the brachioradialis, brachialis, and, to a lesser degree, the biceps brachii.

Comment: This is an excellent exercise for strengthening the wrist, which is often weak because of an imbalance caused by using the wrist flexors rather than the wrist extensors. For this reason, many boxers include it in their training. Many bench press champions use it to keep their wrists from trembling under extreme weights.