How Iridium Programs This

Iridium identifies this as a forearm and brachialis builder, tracking sub-muscle-group fatigue separate from the biceps to prevent overuse. The AI analyzes your 7-day workout history to schedule this grip-intensive exercise after heavy pulling compounds rather than before them, preserving your performance on primary lifts. RPE and weight trends are compared across sessions to ensure consistent progressive overload.

Form Cues

Hold dumbbells with an overhand grip, palms facing your body
Pin your elbows firmly against your ribcage
Contract your forearms to lift the weights until parallel to the floor
Lower the dumbbells slowly with full control
Keep your wrists neutral and rigid throughout the lift

Don't

Don't swing your hips or torso to generate momentum
Don't let your elbows flare out or drift forward
Don't curl your wrists aggressively at the top
Don't drop the weight quickly during the lowering phase

Common Mistakes

Using excessive body momentum
Lifting elbows forward during the curl
Using a weight that is too heavy
Flexing the wrists excessively
Rushing the eccentric (lowering) phase

Muscles Worked

This exercise primarily targets the brachioradialis, a large forearm muscle, and the brachialis, which sits underneath the biceps and contributes to arm thickness. It also engages the biceps brachii to a lesser degree than standard curls while significantly challenging the wrist extensors and grip strength.