Dumbbell One Arm Tricep Extension

Instructions

1. Stand or sit holding a dumbbell in one hand, raised overhead with arm fully extended.
2. Keep the upper arm vertical and close to your head as you bend the elbow to lower the dumbbell behind your head.
3. Stop when you feel a full stretch in the tricep, then extend the arm back to the top.
4. Complete all reps on one side before switching.