Hollow Rock
Description
The hollow rock is a foundational gymnastics core exercise where you hold a hollow body position (slightly rounded back, ribs down, legs and arms extended) and rock back and forth like a rocking chair. It builds tremendous anterior core strength and is the foundation for many advanced gymnastics skills.
Equipment Required
Hollow Rock Instructions
- Lie on your back. Press your lower back firmly into the floor.
- Lift your shoulders, arms, head, and legs slightly off the floor.
- Reach your arms overhead alongside your ears. Keep your legs straight and pointed.
- Round your upper back slightly. Pull your ribs down toward your hips. This is the hollow position — your body forms a gentle banana shape.
- Brace your core hard. Maintain this position rigidly throughout the rocking.
- Begin gently rocking back and forth like a rocking chair, using a slight upper-body lift to drive the rock.
- Keep the hollow shape constant — the entire body moves as one unit. Do not break the position.
- Continue for 20 to 60 seconds. If you cannot maintain the hollow shape, regress to the hollow hold first.
Hollow Rock Form & Visual

Hollow Rock Benefits
- Builds elite anterior core strength
- Foundational gymnastics movement
- Teaches rigid core bracing
- Carries over to all advanced calisthenics skills
- No equipment needed
- Develops body control and awareness
Hollow Rock Muscles Worked
- Rectus abdominis
- Transverse abdominis
- Hip flexors
- Quadriceps
- Anterior deltoid (arms overhead)
Hollow Rock Variations & Alternatives
- Hollow Hold (static — easier)
- Tucked Hollow Rock (knees bent — easier)
- Hanging Hollow Hold
- V-Sit
- Weighted Hollow Rock (plate on chest)




