Open Exercise

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Catalogue

Roman Chair Crunch

oec:roman-chair-crunch

An abdominal exercise performed on a Roman chair that targets the rectus abdominis through controlled spinal flexion while the lower body is anchored.

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 Bench Crunch

How to do it

Setup

  1. Sit on the Roman chair facing upward with your thighs supported by the main pad and your ankles firmly secured beneath the roller pads.
  2. Cross your arms over your chest or lightly place your fingertips beside your ears without pulling on your neck.
  3. Engage your core and lean back slightly until your torso forms a straight line with your thighs.

Movement

  1. Exhale and curl your ribcage down toward your pelvis by flexing your spine, squeezing your abdominals hard at the peak of the contraction.
  2. Pause momentarily at peak flexion while keeping your hips stable.
  3. Inhale and slowly uncurl your spine, returning to the starting semi-reclined alignment without hyperextending your lower back.

Breathing

Exhale forcefully as you curl the torso upward; inhale smoothly as you lower back down under control.

Cues

  • Ribs to hips
  • Curl, don't hinge
  • Keep tension on the abs throughout

Common faults

Swinging the torso by hinging at the hips instead of flexing the spine.
Keep your hip angle relatively fixed and focus exclusively on curling your ribcage toward your pelvis.
Hyperextending the lower back excessively at the bottom of each repetition.
Stop descending once your torso is parallel with your thighs to maintain continuous abdominal engagement and protect the lumbar spine.
Yanking on the neck with hands behind the head.
Cross your arms across your chest or keep your fingertips gently resting at your temples.

Safety

  • Ensure ankle pads are securely locked in position before leaning back into the movement.

Muscles

  • Rectus abdominis prime mover
  • External oblique synergist
  • Internal oblique synergist
  • Iliopsoas stabilizer
  • Rectus femoris stabilizer
  • Transversus abdominis stabilizer

Joints

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

Details

Movement
Spinal flexion
Modality
Hypertrophy, Strength, Calisthenics
Mechanics
isolation
Force
pull
Laterality
bilateral
Kinetic chain
closed
Level
intermediate
Equipment
Roman chair or back extension bench or Glute-ham developer
Record
Repetitions
Load
bodyweight

Related

Sources

This record: CC-BY-SA-4.0.

Data

roman-chair-crunch.json