Dumbbell One-Arm Triceps Extension on Stability Ball

How to do the Dumbbell One-Arm Triceps Extension on Stability Ball

1. 1Sit on a stability ball with your feet flat on the floor.
2. 2Hold a dumbbell in one hand and extend your arm overhead.
3. 3Keep your upper arm stationary and lower the dumbbell behind your head by bending your elbow.
4. 4Extend your arm back to the starting position.
5. 5Repeat for the desired number of repetitions, then switch arms.

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