How To Do One Arm Dumbbell Extensions - Video Execution Guide for Beginners In The Gym

This is an alternate exercise movement for the triceps. Primary muscles used in this exercise are the triceps. Secondary muscles used in this exercise are the forearms and deltoids.

To perform one arm dumbbell extensions hold the dumbbell vertically by grabbing the handle with one hands at one end.

Hold the weight above and behind your head and slowly lower it down as far as possible in a controlled manner. Make sure your arm is perpendicular to the floor. Power the weight back up to the starting position as you concentrate on squeezing your triceps. Repeat the process.