One-Arm Dumbbell Triceps Extension Guide

One-arm dumbbell triceps extension, also known as the overhead triceps extension, is an isolation exercise that primarily targets the triceps brachii muscle. This exercise is performed by holding a dumbbell with one hand, and lifting it overhead with the arm extended. The elbow is then flexed to lower the dumbbell behind the head, before extending the arm back to the starting position. One-arm dumbbell triceps extensions can help to improve triceps strength and size, and are commonly used in bodybuilding and strength training programs.