Open Exercise

Development draft, v0. Formats and IDs may change.

Catalogue

Weighted Crunch

oec:weighted-crunch

An abdominal isolation exercise performed supine, curling the upper spine toward the pelvis while holding an external load.

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: Dumbbell Crunch, Plate Crunch, Weighted Abdominal Crunch

How to do it

Setup

  1. Lie supine on a floor or exercise mat with your knees bent at roughly 90 degrees and feet flat on the floor.
  2. Securely hold a weight plate or dumbbell against your upper chest with both hands.
  3. Tuck your chin slightly and press your lower back gently toward the floor.

Movement

  1. Contract your abdominals to curl your shoulders and upper back off the floor, bringing your ribcage toward your pelvis.
  2. Pause briefly at the peak of the contraction, keeping tension on the abdominal wall.
  3. Lower your upper torso under control until your shoulder blades lightly touch the floor, then immediately begin the next repetition.

Breathing

Exhale forcefully as you curl upward, and inhale as you lower your torso back to the floor.

Cues

  • Ribs to pelvis
  • Curl, don't sit up
  • Keep the weight glued to your chest

Common faults

Pulling on the neck or excessively flexing the cervical spine.
Keep your neck in a neutral posture with the chin slightly tucked, focusing on bending through the ribcage.
Turning the movement into a full sit-up driven by hip flexors.
Only lift the shoulder blades and upper back off the mat; keep the lower back anchored to the floor.
Using momentum or bouncing off the floor.
Perform the movement smoothly with a distinct pause at the top and a controlled descent.

Safety

  • Start with a light weight to ensure proper spinal flexion mechanics without straining the neck or lower back.

Muscles

  • Rectus abdominis prime mover
  • Obliques synergist
  • Transversus abdominis stabilizer

Joints

  • Thoracic spine: Flexion
  • Lumbar spine: Flexion
  • Cervical spine: Isometric stabilization

Details

Movement
Spinal flexion
Modality
Hypertrophy, Strength
Mechanics
isolation
Force
not applicable
Laterality
bilateral
Kinetic chain
open
Level
beginner
Equipment
Weight plate or Dumbbell or Medicine ball
Record
Repetitions and Load
Load
external, total

Related

Sources

This record: CC-BY-SA-4.0.

Data

weighted-crunch.json