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Direction-of-travel diagram for the trunk stability pattern. Photography for the Hollow-Body Rock is not shot yet.
CalisthenicsIn review

Hollow-Body Rock

Small forward and backward rocks while maintaining a hollow body shape.

This page is a working draft. A coach has not reviewed it, so read it as a starting point, not as checked instruction.

Pattern
Trunk stability
Modality
Calisthenics
Difficulty
Intermediate
Mechanic
Unknown
Force
Unknown
Laterality
Bilateral
Impact
Low
Trains where
Gym, Home
At home
Yes

How to do it

Set up

  1. Lie on the back with the arms overhead and the legs together.
  2. Press the lower back down and lift the shoulders and straight legs.

Do the rep

  1. Rock toward the shoulders without changing the hollow shape.
  2. Rock back toward the hips while keeping the legs raised.
  3. Continue with a small controlled range and lower to finish.

What counts as a rep

One rep rocks toward the shoulders and back toward the hips while the arms and legs stay raised and the hollow shape stays fixed.

One rep rocks toward the shoulders and back toward the hips while the arms and legs stay raised and the hollow shape stays fixed.

Breathing

Breathe steadily through the rocks.

Cues

  • Keep one shape.
  • Use small rocks.
  • Keep the legs together.

Common mistakes

  • Bending and extending the hips

    What you seeThe body folds and straightens to create the rock.

    FixHold the hollow shape and reduce the rock size.

    A fixed shape distinguishes rocking from a leg raise.

  • Back arching

    What you seeThe lower back arches as the legs lower.

    FixRaise the legs slightly and stop if the shape breaks.

    The hollow shape controls the trunk through the rock.

Stop the set if

  • Stop if you feel sharp pain.
  • End the set when the shape changes or the feet touch down.

General educational content, not individual coaching or medical advice.

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