One-Arm Dumbbell Triceps Extension
Lie flat on a bench while holding a dumbbell at arm’s length. Your right arm should be perpendicular to your body. The palm of your right hand should be facing towards your feet as a pronated grip is required to perform this exercise. Place your left hand on your bicep for support.
Slowly begin to lower the dumbbell down.
Lift the dumbbell upward to the starting position as you contract the triceps. Repeat the exercise according to the training plan then switch arms.