Instructions

1

Sit upright on a flat bench with feet firmly planted on the floor. Hold a dumbbell with both hands, gripping it vertically by the end plate. Position the dumbbell above your head with elbows bent approximately 90 degrees.

2

Ensure your back is straight and core engaged. Position the dumbbell directly over your head with elbows pointing forward and slightly inward. Maintain a neutral head position and stable lower body throughout the movement.

3

Lower the dumbbell by bending at the elbows in a controlled manner, allowing it to descend behind your head. Keep elbows stationary and pointing forward. Lower until forearms approach biceps or until you feel a comfortable stretch in the triceps.

4

Press through the back of your arms to extend the elbows, driving the dumbbell back up to the starting position. Lock out the elbows at the top of the movement without hyperextending. Maintain controlled tempo throughout the concentric phase.

PRIMARY MUSCLESTriceps Brachii

SECONDARY MUSCLESAnterior Deltoid, Pectoralis Major, Anconeus

EQUIPMENTDumbbell

DIFFICULTYBeginner

Overview

Focusing on the Dumbbell One Arm Triceps Extension on bench allows you to target the Triceps Brachii with precision. As a foundational Strength exercise, the integration of Dumbbell provides the necessary tension to trigger hypertrophy, while avoiding excessive joint strain.

Benefits

Acts as a highly scalable Strength movement, perfect for both beginners and elite athletes.
Allows for a natural movement path that closely mimics functional daily activities.
Improves overall Upper Arms stability and proprioception during heavy loads.
Reduces the likelihood of Upper Arms injuries by reinforcing connective tissue strength.
Utilizes Dumbbell to create sustained mechanical tension, forcing deep muscle adaptation.

Common Mistakes

Failing to achieve a full range of motion, which drastically limits Triceps Brachii engagement.
Losing core tension, leading to poor spinal alignment and reduced power output.
Using excessive momentum to swing the Dumbbell rather than controlling the eccentric phase.
Shrugging the shoulders or compensating with secondary muscles rather than isolating the Triceps Brachii.

Muscle Anatomy

The primary driver is the Triceps Brachii. However, the movement also recruits Anterior Deltoid, Pectoralis Major, Anconeus to maintain control of the Dumbbell.

Exercise Variations

Dumbbell Dumbbell One Arm Triceps Extension on bench
Cable Dumbbell One Arm Triceps Extension on bench
Banded Dumbbell One Arm Triceps Extension on bench

Beginner Tips

If you are new to the Dumbbell One Arm Triceps Extension on bench , focus on mastering the movement pattern with zero weight before adding Dumbbell.

Dumbbell One Arm Triceps Extension on bench