Seated Overhead Triceps Extension
The dumbbell seated overhead triceps extension is a isolation exercise for the triceps. Perform the overhead triceps extension on a swiss ball or while standing to increase activation of the Abdominals and Erector spinae.

Overhead Triceps Extension Works:
Category: Tricep Workouts
How to do seated overhead dumbbell extensions:
Sit on a bench with the chest upright and spine straight.
Hold the dumbbell overhead.
Lower the dumbbell toward the back by bending the elbow.
Extend the dumbell overhead by contracting the triceps.
Repeat.
Mistakes
Using momentum to move the dumbbell.
Video: