Single-Arm Dumbbell Preacher Curl: how to do it and form tips

A unilateral preacher curl with a dumbbell to fix imbalances and force a strict, isolated range of motion on each arm.

Form tips

Plant your working arm flat on the preacher pad up to the armpit.
Lower the dumbbell fully — don't bounce out of the stretched position.
Use your free hand only to spot, never to assist the rep.

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