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LiftSets / Exercises / Dumbbell One-Arm Triceps Extension

Dumbbell One-Arm Triceps Extension

Works the triceps.

Dumbbell One-Arm Triceps Extension, start position, with the working muscles highlighted
Start
Dumbbell One-Arm Triceps Extension, finish position, with the working muscles highlighted
Finish

Bright blue is the target muscle. Darker blue is helping. The app shows this as a moving demo.

Muscles worked

triceps

How many reps

GoalReps per set
Strength4-6
Muscle size8-12
Endurance12-20+

Whatever the number, the set should end within a rep or two of the point where you could not do another with good form.

KitDumbbell
LevelIntermediate

What to think about

How to do it

  1. Grab a dumbbell and either sit on a military press bench or a utility bench that has a back support on it as you place the dumbbells upright on top of your thighs or stand up straight.
  2. Clean the dumbbell up to bring it to shoulder height and then extend the arm over your head so that the whole arm is perpendicular to the floor and next to your head. The dumbbell should be on top of you. The other hand can be kept fully extended to the side, by the waist, supporting the upper arm that has the dumbbell or grabbing a fixed surface.
  3. Rotate the wrist so that the palm of your hand is facing forward and the pinkie is facing the ceiling. This will be your starting position.
  4. Slowly lower the dumbbell behind your head as you hold the upper arm stationary. Inhale as you perform this movement and pause when your triceps are fully stretched.
  5. Return to the starting position by flexing your triceps as you breathe out. Tip: It is imperative that only the forearm moves. The upper arm should remain at all times stationary next to your head.
  6. Repeat for the recommended amount of repetitions and switch arms.

Other exercises for the triceps

Track it in LiftSets

Log Dumbbell One-Arm Triceps Extension with last time's numbers in front of you, a rest timer on your lock screen and a graph of your progress.

Coming soon to the App Store