The reverse curl, a variation of the standard biceps curl, primarily develops the brachialis and brachioradialis muscles located in the forearm. These muscles contribute to elbow flexion, but their specific positioning and function mean the reverse grip emphasizes them more than a standard supinated (palms-up) grip. This exercise also engages the wrist extensors to a degree, contributing to overall forearm strength and stability.
Strengthening these forearm muscles offers significant benefits for various activities. A stronger brachialis assists with overall elbow flexion strength, enhancing performance in pulling movements like pull-ups and rows. Developed brachioradialis muscles contribute to more stable and powerful forearm rotation, beneficial for activities like rock climbing and grappling. Furthermore, enhanced wrist stability, a byproduct of reverse curls, improves grip strength and control, crucial for weightlifting, carrying objects, and even everyday tasks. This focus on less-trained muscles can also contribute to improved aesthetics and muscular balance in the arms.