Partner-Supported Flat-Bench Back Extension

Learn how to do partner-supported flat-bench back extension with a clear setup, controlled movement, and a technique you can repeat.

BackBodyweight3 technique steps

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Partner-Supported Flat-Bench Back Extension: matching illustrations comparing the setup and movement positions
01Set your position02Make the movement

How to do partner-supported flat-bench back extension

  1. Lie face down along a stable flat bench with the hips near its end and the torso extending beyond it. Have a training partner securely hold the legs; check that the bench cannot tip before beginning.
  2. Cross the arms over the chest. Hinge slowly at the hips to lower the torso toward the floor, stopping before contact or any loss of back control.
  3. Raise the torso until it is in line with the legs, then lower again under control. Avoid swinging or arching past a straight body line.
Partner-Supported Flat-Bench Back Extension exercise illustration

Partner-Supported Flat-Bench Back Extension: muscles worked

Primary focus: back. Supporting muscles: Legs.

Better reps before more weight.

Start with a version you can control. Record the same setup and range each time. Add reps or a small load increase when you can repeat the movement without changing the technique.

Plan your next set

Frequently asked questions

How do you do partner-supported flat-bench back extension?

Lie face down along a stable flat bench with the hips near its end and the torso extending beyond it. Have a training partner securely hold the legs; check that the bench cannot tip before beginning. Cross the arms over the chest. Hinge slowly at the hips to lower the torso toward the floor, stopping before contact or any loss of back control. Raise the torso until it is in line with the legs, then lower again under control. Avoid swinging or arching past a straight body line.

What muscles does partner-supported flat-bench back extension work?

Partner-Supported Flat-Bench Back Extension primarily trains the back, with the legs contributing. The exact demand depends on your setup, range, and chosen load.

What is the best technique for partner-supported flat-bench back extension?

Rehearse the setup with a manageable load or easy variation. Follow the exercise-specific steps below through a controlled range. Repeat the same setup each set and stop when you lose control of the movement.

What can I do instead of partner-supported flat-bench back extension?

Related options include Chin-up, Pull-up, Back Extension. These can have different equipment, range, and movement demands. Open the guides below to compare the setups before choosing a replacement.

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