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Exercise guide
Cross-Body Crunch
A floor oblique crunch that draws the opposite elbow and knee toward each other, hitting the obliques and rectus together.
What this exercise works
- Muscles
- obliques · rectus abdominis
- Goals
- hypertrophy · endurance
- Equipment
- No equipment
- Category
- Strength
- Difficulty
- beginner
Demonstration
Step 1
Step 2
How to perform the movement
- Lie face-up on the floor with knees bent and hands lightly behind the ears.
- Crunch up and rotate, bringing the right elbow toward the left knee as the knee draws up.
- Return to the starting position under control.
- Repeat on the other side, alternating every rep.
Technique cues and common mistakes
- Twist from the ribcage, not the arms; the elbows follow the shoulders.
- Lower back stays on the floor throughout.