- Begin with a single dumbbell by your side
- Press the dumbbell above your head until your arm is straight
- Hold your side with the other arm to increase stability, or use it to support your elbow to keep it in a stable position
Dumbbell Tricep Extension works each triceps in isolation above your head, requiring you to use your core for stability. This provides a good crossover with other vertical pushing movements where your elbows go above your head.