Hollow Rock

A bodyweight exercise for the rectus abdominis.

  • Core
  • Bodyweight

All exercises

Log it in Platesmith. The app shows last time's numbers on every set of Hollow Rock, times your rest and tells you when to add weight. Free, with no ads.

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Muscles worked

MainRectus abdominis
AlsoHip flexors

Setup

Master the hollow body hold first; tuck the knees to make it easier.

How to do it well

  • Lower back pressed to the floor, arms and legs long
  • Rock from shoulders to hips without losing the shape
  • Small, steady rocks

Common mistakes

  • Letting the lower back arch off the floor
  • Bending at the hips to rock

Similar exercises

General guidance, not medical advice. Start lighter than you think, and check with a doctor first if you have a health condition or injury.