Open Exercise

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Catalogue

Back Extension

oec:back-extension

A posterior-chain exercise performed on an angled or horizontal bench that strengthens the erector spinae, glutes, and hamstrings.

Generated by gemini-3.8-flash from the sources below. No person has checked this record. Don't rely on it for safety.

Also called: Hyperextension, Roman Chair Back Extension, Roman Chair Hyperextension, 45-Degree Back Extension, Hyperextensions, Lower Back Extensions

How to do it

Setup

  1. Position yourself in the Roman chair or back extension apparatus with your feet secured flat against the footplate and your Achilles tendons snug against the rear pads.
  2. Adjust the hip pad height so the top edge rests just below your anterior superior iliac spine, allowing full flexion at the hips without curling the lumbar spine over the pad.
  3. Cross your arms over your chest or place your fingertips lightly behind your ears, keeping your neck in a neutral position aligned with your torso.

Movement

  1. Hinge forward at the hips, lowering your torso in a slow, controlled descent until you feel a moderate stretch in the hamstrings.
  2. Engage your glutes and hamstrings to drive your hips into the pad, raising your torso back up.
  3. Ascend until your torso forms a straight line from your ankles through your shoulders, pausing briefly at the top without hyperextending the lower back.
  4. Lower under control back to the starting stretch to complete the repetition.

Breathing

Inhale deeply as you lower your torso toward the floor; exhale forcefully as you extend your hips and raise your torso back to the top.

Cues

  • Hinge from the hips, not the waist
  • Squeeze glutes at the top
  • Crown of head to the ceiling

Common faults

Hyperextending the lumbar spine at the peak of the movement.
Stop when your body forms a straight line from heels to shoulders; avoid arching backward past neutral.
Setting the thigh pad too high, locking the pelvis and forcing movement through spinal flexion.
Lower the pad so your hip crease is completely clear of the top edge, allowing free hip articulation.
Using momentum or swinging violently to raise the torso.
Move smoothly with a controlled cadence, focusing on deliberate glute and hamstring contraction.

Safety

  • Ensure the support pins are fully locked in place before loading your weight onto the apparatus.
  • Maintain a neutral spine if you experience disc-related lower-back irritation.

Muscles

  • Erector spinae prime mover
  • Gluteus maximus prime mover
  • Hamstrings synergist
  • Adductor magnus synergist
  • Rectus abdominis stabilizer

Joints

  • Hip: Flexion, Extension
  • Lumbar spine: Isometric stabilization

Details

Movement
Hip hinge
Modality
Strength, Calisthenics, Hypertrophy
Mechanics
compound
Force
pull
Laterality
bilateral
Kinetic chain
closed
Level
beginner
Equipment
Roman chair or back extension bench or Glute-ham developer
Record
Repetitions
Load
bodyweight plus external, total

Related

Sources

This record: CC-BY-SA-4.0.

Data

back-extension.json