The multifidus is a deeply seated, highly crucial muscle group that runs vertically along both sides of your entire spine. It fills the groove between the spinous and transverse processes of your vertebrae.
Key Details About the Multifidus:
• Function: Its primary role is to serve as a local core stabilizer. It protects individual vertebrae from shifting out of alignment and provides segment-by-segment stability to the lumbar (lower) spine.
• Movement: When both sides contract together, they help extend the spine (bending backward). When only one side contracts, it assists with side-bending and twisting.
• Clinical Significance: Weakness, wasting (atrophy), or dysfunction in the multifidus muscle is heavily associated with chronic lower back pain.
My physical therapy app taught me there are exercises I can do to essentially re-awaken the multifidus muscles.
[CRUCIAL TO GET THE APPROVAL OF YOUR OWN MEDICAL PROFESSIONAL BEFORE STARTING.]
Phase 1: Release & Decompress (The Natural Way)
Before strengthening a dormant muscle, you must relax the superficial back muscles (like the erector spinae) that are tight and overworking to compensate.
• Child’s Pose: Kneel on the floor, sit your hips back toward your heels, and reach your arms forward on the floor. Breathe deeply into your lower back for 1–2 minutes to lift pressure off the spine.
• Cat-Cow Stretch: On your hands and knees, slowly alternate between arching your back toward the ceiling and letting your belly dip toward the floor. This provides a gentle, rhythmic wave of motion that relaxes surface tension.
Phase 2: Reactivate & Rebuild (The Natural Way)
These exercises isolate the deeper stabilizing layers of the spine.
• The Quadruped Pelvic Tilt / Isolate:
• How to do it: On all fours, find a flat, neutral spine. Gently draw your belly button toward your spine and slightly flatten the curve of your lower back. Hold for 5–10 seconds while breathing normally.
• Why it works: This teaches your brain how to intentionally signal and turn the multifidus back “on” without moving your limbs.
• The Bird Dog:
• How to do it: Start on your hands and knees. Brace your core, then slowly extend your right arm straight forward and your left leg straight back. Hold for 3–5 seconds, return, and alternate sides.
• Why it works: It forces the deep spinal stabilizers to fire to keep your hips and torso level as your limbs move.
• Glute Bridges:
• How to do it: Lie on your back with knees bent and feet flat on the floor. Squeeze your glutes and lift your hips until your body forms a straight line from shoulders to knees. Hold for 5 seconds, then lower.
• Why it works: Bridges engage the posterior chain, requiring the multifidus to contract to stabilize the pelvis.
Moving to Functional Loading
Once your back pain subsides and the muscle is reactivated, research shows that basic compound movements – such as bodyweight squats, Romanian deadlifts, or standard core planks – generate excellent levels of multifidus activation and muscle growth.