Hollow Body Hold

What is the Hollow Body Hold?

The hollow body hold is a gymnastics-staple isometric: lying on your back you press the lower back flat into the floor and extend the arms and legs, holding the tensioned position. It’s an anti-extension exercise (the abs work to keep the body from arching), and it builds the whole-trunk bracing strength that underpins harder movements.

Muscles worked

Primary: Abs

The rectus abdominis and deep transverse abdominis contract isometrically to keep the lower back pinned flat and stop the extended arms and legs from pulling the body into an arch.

Stabilizers

The hip flexors and quads help hold the legs up, but the trunk’s job is the anti-extension brace that defines the position.

How to perform the Hollow Body Hold

1. Lie on your back, extend the arms overhead and the legs straight out, then press the lower back firmly into the floor.
2. This is an anti-extension hold: the whole body forms a shallow banana shape while the lumbar refuses to lift off the floor.
3. Lift the shoulder blades and the straight legs a few inches off the ground so only the lower back and hips remain in contact.
4. Squeeze the glutes and brace the abs so the ribcage is pulled down and the pelvis is tucked, locking the dish shape.
5. Breathe in small, controlled breaths while maintaining constant tension from the shoulders through the toes.
6. Hold for the target time, and the instant the lower back peels off the floor, lower the limbs and reset rather than losing the position.

Suggested working range: 30–60 reps. Default progression: double progression.

Mechanics

An isometric anti-extension hold: with the arms and legs extended away from the body, gravity tries to hyperextend the spine, and the abs fire continuously to keep the lower back flat. There’s no range of motion: the difficulty comes from the long levers of straight limbs and the duration you hold the braced shape.

Form cues

• •Press the lower back into the floor first. That flat-back brace is the whole exercise, not raising the limbs.
• •Lower the arms and legs only as far as you can keep the back pinned; if it lifts off, raise them back up.
• •Keep breathing shallowly through a tight brace rather than holding your breath for the whole set.

Common mistakes

• •Letting the lower back peel off the floor so the body loses the dish and arches into extension.
• •Raising the legs and shoulders too high so the position collapses into a resting L-sit rather than a hollow.
• •Holding the breath instead of taking small controlled breaths under constant tension.
• •Bending the knees and dropping the arms to shorten the levers and cheat the hold.

Variations & alternatives

• •Dead bug: a beginner regression that trains the same flat-back brace one limb at a time.
• •Plank: a face-down isometric anti-extension hold that builds overlapping bracing strength.
• •Ab wheel rollout: a moving anti-extension progression once the static hold is solid.

Crunch

Abs · Bodyweight

Cable Crunch

Abs · Cable

Hanging Leg Raise

Abs · Bodyweight

Machine Crunch

Abs · Machine

Decline Crunch

Abs · Bodyweight

Programming: sets, reps & when to use it

The 30–60 figure here is seconds of hold, not reps, so accumulate time in the position, working up from shorter holds as your brace improves. Regress by tucking the knees or raising the limbs higher (shorter levers) and progress by extending them and holding longer.

Frequently asked questions