Exercise guide
Hollow Hold
- Intermediate
- Isolation
- Timed hold
- Waist
The hollow hold is a foundational isometric core exercise that builds deep abdominal strength and stability by teaching the body to maintain a rigid, 'hollowed' position. It is highly effective for improving posture and core tension required for advanced gymnastics and calisthenics movements.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Lie flat on your back on a mat with your legs straight and arms extended overhead.
- Press your lower back firmly into the floor, eliminating any gap between your spine and the mat.
- Squeeze your legs together and point your toes.
How to do it
- Simultaneously lift your legs, head, and shoulders a few inches off the ground while keeping your lower back glued to the floor.
- Reach your arms overhead, keeping them parallel to your ears, and engage your quads and glutes to create a 'banana' shape.
- Maintain a steady breathing pattern, exhaling deeply to further contract the abdominals while holding the position for the desired duration.
Form checklist
- Lower back must remain in contact with the floor at all times.
- Keep the chin tucked slightly toward the chest to protect the neck.
- Legs should be straight with toes pointed and quads engaged.
- Shoulders should be lifted off the mat, not just the head.
Pro tips
- Focus on 'knitting' your ribs toward your hips to maximize the contraction of the rectus abdominis.
- If your lower back starts to arch, immediately raise your legs higher or tuck your knees slightly to reset the pelvic tilt.
Make it harder
- Add a 'Hollow Rock' by gently rocking back and forth while maintaining the rigid hollow shape.
- Hold a light weight plate or medicine ball in your hands to increase the lever length and resistance.
Frequently asked
- What muscles does the hollow hold work?
- The hollow hold primarily targets the abs and obliques, and also works the erector spinae and serratus anterior as secondary muscles.
- What equipment do you need for the hollow hold?
- The hollow hold requires no equipment — just your body weight.
- Is the hollow hold good for beginners?
- The hollow hold is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.