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Crocodile Breathing (Prone Diaphragmatic)

Draftbreathwork80%beginnermoderate evidence
View FHIR resourceFHIR R4 ActivityDefinition — the interoperable form of this exercise

Positions & Range of Motion

Start
prone with the forehead resting on stacked hands, legs extended, the whole front of the body in contact with the floor
End
same prone position sustained; the belly presses down into the floor and the low back rises slightly on inhale, then settles on exhale — no change in body position
Range of Motion
isometric hold — minimal joint excursion; movement limited to abdominal and lower-rib expansion against the floor during breathing

How to Perform

Lie prone with forehead resting on stacked hands. Breathe so the belly presses into the floor on inhale and releases on exhale. The prone position gives clear proprioceptive feedback that the diaphragm is descending posteriorly into the lower ribs.

Watch on YouTube

Opens a YouTube search for “Crocodile Breathing (Prone Diaphragmatic)

Starting position: prone

Coaching Cues

  1. 1

    Belly should push into the floor on every inhale

    (tactile)
  2. 2

    Low back should rise slightly with breath, then settle on exhale

    (tactile)

Evidence-Based Dosing & EMG Data

Recommended Dosing

5–10 minutes, 1–2×/day; especially valuable for users who chest-breathe.

Muscles Involved (2)

Primary Movers

Synergists & Assistors

Easier Variations ↓

1

Supine Diaphragmatic

Same drill supine if prone is uncomfortable for the lumbar spine.

Harder Variations ↑

1

Quadruped Diaphragmatic

Hands and knees position challenges core + breath integration.

Why This Exercise Matters

Everyday activities this exercise helps you do — essential means it directly trains the capacity the task needs:

Research Notes

Classic PRI/Gray Cook teaching tool for diaphragmatic breath relearning. The floor gives unambiguous tactile feedback about belly expansion direction.