Dumbbell Back Extension 10s · no sound

Dumbbell Back Extension

A loaded back extension on a 45-degree bench, holding a dumbbell at the chest to add resistance to the hip hinge.

Primary muscle
Lower Back
Equipment
Dumbbell
Difficulty
Intermediate
Movement
Hinge
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How to do it

  1. Set the hip pad of a 45-degree bench just below your pelvis and lock your ankles under the roller.
  2. Take a single dumbbell and hold it against your chest with both hands.
  3. Brace your abdominals and set your head, spine and hips in one straight line.
  4. Hinge at the hips and lower your torso until you feel the hamstrings lengthen.
  5. Drive the hips into the pad and extend until your body forms a straight line.
  6. Pause at the top, lower under control, and repeat for the prescribed reps.

Common mistakes

  • Adding load before bodyweight reps are controlled, which rounds the back under the extra lever arm.
  • Letting the dumbbell drift away from the chest, which increases spinal load without training anything extra.
  • Extending past a straight line at the top, which compresses the lumbar spine under load.
  • Using momentum out of the bottom, which removes tension from the glutes and hamstrings.

Muscles worked

Primary
Lower Back
Secondary
GlutesHamstrings

Good to know

What muscles does the Dumbbell Back Extension work?
Mainly the lower back. It also works the glutes and hamstrings.
What equipment do you need for the Dumbbell Back Extension?
It uses dumbbells. Without it, the B-stance Back Extension and the Back Extension train the same muscles the same way.
Is the Dumbbell Back Extension good for beginners?
GymVim rates it intermediate. For a beginner-rated exercise on the same muscle and movement, see the Back Extension.

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