Multifidus

Schematic anatomy
Deep layerMultifidus

Core

Rectus abdominisInternal & external obliquesTransversus abdominis

Deep trunk

MultifidusQuadratus lumborumDiaphragmPelvic floor
Movement guide

Multifidus

Short deep spinal muscles help control individual vertebral segments.

01

Bird dog

Stability · Bodyweight

Also works

Erector spinae, gluteus maximus, abdominal wall

How to perform

Start on hands and knees. Extend the opposite arm and leg without rotating your trunk, pause, then return and switch sides.

Reach long rather than lifting high.

Example volume · 2–3 sets × 6–10 / side

Referencesopenstax.org

Community draft · awaiting expert review