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Illustration demonstrating the position of the Prone Multifidus Isometric Activation exercise.

Therapeutic exercise

Prone Multifidus Isometric Activation

StrengthenIntermediate

Segmental isometric contraction of the multifidus in prone position, with no spinal extension. Activates the deep vertebral stabilizer that is consistently inhibited in patients with chronic low-back pain and spondylolisthesis — precise motor re-education, not brute force.

How to perform

  1. Starting position. Lie face down with the arms by the sides and the forehead resting on a towel.
  2. Step 2. Palpate with the fingertips over the lumbar transverse processes (sides of the lower lumbar vertebrae) to locate the multifidus.
  3. Step 3. Press the abdomen gently against the floor (this prevents lordosis), then subtly contract the muscles under your fingers, as if trying to fill the space between the vertebrae.
  4. Step 4. The contraction is minimal — the body should not move; only the multifidus should harden under your fingers.
  5. Return. Hold for 10 seconds, breathing normally. The key is precision, not intensity.

When not to perform

  • Pregnancy (incompatible with prone position)
  • Acute lumbar disc herniation
  • Acute low-back pain in prone
  • Recent post-operative lumbar surgery
  • High-grade spondylolisthesis with hypermobility
  • Morbid obesity that prevents adequate palpation

Medical disclaimer. These exercises are presented for informational purposes only. Always consult your physician before starting any exercise program, especially in case of acute pain, recent injury, or underlying clinical condition.

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