Ab exercises

Hollow Rock

Also known as: Κούνημα hollow body · hollow rocks · hollow body rock

Primary
Abs
Equipment
Bodyweight
Type
Isolation
Suggested rest
45 s

How to do the Hollow Rock

  1. Get into a hollow body position: lower back down, shoulders and legs up, arms overhead.

  2. Keep your body tight in a banana shape and rock back and forth on your back.

  3. Move as one piece, without bending your hips or arms.

  4. Count each rock forward and back as one rep.

Sets and reps

GoalSetsRepsRest
Muscle growth2–410–1545 s
Muscular endurance2–315–2545 s

When you hit the top of the rep range on every set, add a rep or a harder variation next session.

Starting points from training research. Stop each set 1–3 reps short of failure.

Muscles worked

Primary

Abs

Secondary

Obliques

The abs flex your spine and stop it from arching. Mix crunching moves (crunches, leg raises) with anti-extension work (planks, rollouts).

Train smarter

Bodyweight ab exercises