dumbbell one arm triceps extension (on bench)

How to perform it

Sit on a bench with your back straight and feet flat on the ground. Hold a dumbbell in one hand and place your other hand on the bench for support. Raise the dumbbell overhead, keeping your upper arm close to your head and your elbow pointing forward. Lower the dumbbell behind your head by bending your elbow, keeping your upper arm stationary. Extend your arm back up to the starting position, fully straightening your elbow. Repeat for the desired number of repetitions, then switch arms.

1. 1Sit on a bench with your back straight and feet flat on the ground.
2. 2Hold a dumbbell in one hand and place your other hand on the bench for support.
3. 3Raise the dumbbell overhead, keeping your upper arm close to your head and your elbow pointing forward.
4. 4Lower the dumbbell behind your head by bending your elbow, keeping your upper arm stationary.
5. 5Extend your arm back up to the starting position, fully straightening your elbow.
6. 6Repeat for the desired number of repetitions, then switch arms.