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Bodyweight exercise

Floor crunch

Flex the upper trunk while keeping the lower back supported. Curl the ribs toward the pelvis, pause, and return the shoulders to the floor.

Open in atlas
Movement
Trunk flexion
Difficulty
Beginner
Mechanics
Isolation
Posture
Floor

Muscles involved

Primary

Secondary

Equipment and setup

Required: Floor space.

  • Position the hips and lower back securely.
  • Begin with the abdomen braced.

How to perform the movement

  1. Flex the upper trunk.
  2. Pause in the shortened position.
  3. Return without relaxing completely.

Technique cues

  • Move through the ribs rather than pulling the head.
  • Exhale during the curl.

Interactive preview

Movement guide

Rest position preview for Floor crunch

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