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Seated Bent-Over One-Arm Dumbbell Triceps Extension

Seated Bent-Over One-Arm Dumbbell Triceps Extension is a beginner isolation dumbbell exercise that mainly works your triceps.

💪 Triceps🏋️ Dumbbell📈 Beginner🔗 Isolation🎯 3 sets of 10-15 reps
Seated Bent-Over One-Arm Dumbbell Triceps Extension: starting position
Starting position
Seated Bent-Over One-Arm Dumbbell Triceps Extension: end position
End position

How to do the seated bent-over one-arm dumbbell triceps extension

  1. Sit down at the end of a flat bench with a dumbbell in one arm using a neutral grip (palms of the hand facing you).
  2. Bend your knees slightly and bring your torso forward, by bending at the waist, while keeping the back straight until it is almost parallel to the floor. Make sure that you keep the head up.
  3. The upper arm with the dumbbell should be close to the torso and aligned with it (lifted up until it is parallel to the floor while the forearms are pointing towards the floor as the hands hold the weights). Tip: There should be a 90-degree angle between the forearms and the upper arm. This is your starting position.
  4. Keeping the upper arm stationary, use the triceps to lift the weight as you exhale until the forearm is parallel to the floor and the whole arm is extended. Like many other arm exercises, only the forearm moves.
  5. After a second contraction at the top, slowly lower the dumbbell back to the starting position as you inhale.
  6. Repeat the movement for the prescribed amount of repetitions.
  7. Switch arms and repeat the exercise.

Muscles worked

Primary: Triceps

Sets and reps

Do 3 sets of 10-15 reps with 60-90 seconds of rest, using a weight you can control through the full range. Add reps first, then weight.

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Seated Bent-Over One-Arm Dumbbell Triceps Extension alternatives

Exercises that train the same main muscle, including options with other equipment.

Triceps PushdownCable · BeginnerSkull CrusherBarbell · BeginnerTate PressDumbbell · IntermediateBody Tricep PressBodyweight · BeginnerMachine Triceps ExtensionMachine · BeginnerBand Skull CrusherBand · Beginner

FAQ

What muscles does the seated bent-over one-arm dumbbell triceps extension work?

It mainly works your triceps.

How many sets and reps of seated bent-over one-arm dumbbell triceps extension should I do?

Do 3 sets of 10-15 reps with 60-90 seconds of rest, using a weight you can control through the full range. Add reps first, then weight.

Is the seated bent-over one-arm dumbbell triceps extension good for beginners?

Yes. It is a beginner-friendly movement: start light and focus on the form steps above.

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