core

Hollow Hold

Moderate

Text cues are the instruction

No animation available yet. Follow the step-by-step cues and setup checks on this page.

High-stakes movement: check the positioning and setup requirements below before training. Animation availability does not change your exercise eligibility.

Kalyra may avoid or modify this exercise when:
  • Crunch-pattern movementsKalyra takes a conservative approach and currently holds back crunching movements during pregnancy and the postpartum recovery window — practice commonly adjusts these, and evidence is still evolving.
  • Back-lying positionsKalyra takes a conservative approach and currently holds back exercises lying flat on your back (for example, after the first trimester of pregnancy).
Musclescore
EquipmentNone
Positionsupine
Impactnone
Training roleSTABILITY

Form cues

  • Low back pressed flat; lift shoulders and legs to your tolerance
  • The lower the legs, the harder — earn the level
  • Stop when the back arches

Common errors

  • ✗ Back gapping off the floor
  • ✗ Chin jammed to the chest

How Kalyra programs it

Builds trunk stability (flexion) so the rest of your training transfers to real movement — carried with strict volume caps.

Typically 1–3 sets of 20s, with the hold length scaled to the session.

Easier · Harder · Substitutions

No easier regression on file.

No harder progression on file.

Bicycle Crunch

Written cues and setup checks remain the instruction alongside available exercise animations.

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