Dumbbell Seated Alternate Hammer Curl on Stability Ball
The alternating hammer curl seated on a stability ball; one arm at a time shifts the load from side to side on the ball.
How to do it
Setup
Seated on a stability ball, feet wide and flat, dumbbells at the sides in a neutral grip.
Steps
- Curl one bell thumb up to the shoulder.
- Lower it before the other rises.
- Keep the ball still as the sides trade.
Common mistakes
Ball rolling toward each working arm: brace the trunk and keep the feet wide. Grip turning palm up: thumbs stay on top. Rushing from arm to arm: finish each rep first.
Breathing
Exhale on each curl, inhale lowering.
