Multifidus

Multifidus is a series of small muscles which travel up the length of the spine. It is an important muscle in the rehabilitation of Gilmore's Groin.

Origin

• Posterior surface of the sacrum
• Articular processes of the lumbar vertebrae
• Transverse processes of the thoracic vertebrae
• Articular processes of C3-7

Insertion

• Each part of the muscle inserts into the spinous process 2-4 vertebrae higher than its origin

Actions

• Extension, lateral flexion and rotation of the spine

Innervation

• Dorsal rami of the spinal nerves

Daily uses

• Maintaining good posture of the spine

How can I stretch it?

• Back arch stretch
• Back slump stretch
• Rotation stretch

How can I strengthen it?

• Back extension machine
• Dorsal raises
• Back extension on a swiss ball