Single-Arm Overhead Triceps Extension (Dumbbell)
Also called Dumbbell One-Arm Triceps Extension, One-Arm Dumbbell Overhead Extension
How to do it
Sit or stand holding one dumbbell overhead with your elbow bent beside your head. Keep your upper arm vertical as you extend the elbow to full lockout, then lower the bell slowly behind your head. Complete the reps on one side before switching without arching your lower back.
