Dumbbell Wrist Curls 

Starting Position 
Sit with forearms resting on your thighs or a bench. Take an underhand grip on one dumbbell, passively extending your wrists downward. Place the other hand on top of your wrist (not pictured) to hold the arm in place. 

Action 
EXHALE: Curl your wrist up, keeping the rest of the arm still by using your free hand.  

INHALE: Slowly lower to the starting position to complete one rep. Finish all reps on this side and switch hands.  

Special Instructions 
Can also be done with both wrists simultaneously.

Muscles Worked: Forearms