Crunch Floor

A classic abdominal isolation exercise. It targets the upper rectus abdominis by focusing on spinal flexion and controlled contraction.

Exercise Details

Level: Beginner
Body Area: core
Type: core

Required Equipment

Bodyweight-only

Target Muscle Groups

Primary

Abs

Secondary

Back

Setup

Lie on your back with knees bent and feet flat. Place your hands lightly behind your head or across your chest.

Instructions

1. Lift your shoulder blades off the floor by contracting your abs.
2. Exhale at the top of the movement.
3. Focus on curling your ribs toward your pelvis.
4. Lower slowly back to the start.
5. Maintain a flat lower back.

Common Mistakes

1. Pulling on the neck.
2. Moving too fast.
3. Arching the back between reps.

Alternative Exercises

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