Understanding Multifidus Dysfunction
The multifidus is one of the key stabilizing muscles of the lower back. When it is not functioning properly, the spine may lose some of its natural support and become more vulnerable to pain and repeated injury.
What Is the Multifidus Muscle?
The multifidus is a deep muscle that runs along the spine and plays an important role in stabilizing the lower back.
Unlike larger muscles that create bigger movements, the multifidus helps provide small, controlled adjustments that support the spine during everyday activity.
When this muscle is working properly, it helps maintain spinal stability and control as you bend, lift, walk, twist, and move.
Deep Spinal Support
The multifidus helps stabilize individual spinal segments and supports coordinated movement of the lower back.
How Multifidus Dysfunction Can Develop
A back injury may interfere with the nervous system's ability to properly activate and control the multifidus muscle.
Back Injury
An injury or painful episode may disrupt normal muscle activation in the lower back.
Reduced Muscle Control
The multifidus may not activate as effectively or consistently as it did before the injury.
Less Stability
Reduced muscle control can decrease the spine's functional stability during movement.
Repeated Overload
Other muscles and spinal structures may take on additional stress, which can contribute to ongoing pain or repeated injury.
Why Does Multifidus Dysfunction Matter?
The spine relies on coordinated muscle activity to remain stable during movement. When the multifidus is not functioning properly, that control may be reduced.
This can leave the lower back more susceptible to repeated strain, overloading, or pain during everyday activities.
Why Neuromuscular Control Is Important
Multifidus dysfunction is not simply about having a weak muscle. It may also involve the communication between the nervous system and the muscle.
Muscle Activation
The nervous system must correctly signal the multifidus to activate when spinal support is needed.
Movement Control
Proper activation helps control small movements between individual vertebrae.
Spinal Stability
Better neuromuscular control can help support the spine during bending, lifting, and other activities.
Improved Function
Restoring more effective muscle control may help improve movement and reduce pain for appropriate patients.
Is Multifidus Dysfunction Contributing to Your Back Pain?
Low back pain can come from many different structures. A careful evaluation is important to determine whether impaired multifidus function may be contributing to your symptoms.
Detailed history of your back pain
Physical examination
Movement and stability testing
Evaluation of muscle function
Review of imaging when appropriate
Evaluation of other possible pain sources
How Is Multifidus Dysfunction Treated?
Treatment focuses on improving the function and neuromuscular control of the multifidus muscle so the spine can regain better stability and support.
Depending on your condition, treatment may include targeted rehabilitation, strengthening, movement retraining, and other therapies designed to improve spinal stability and function.
Your healthcare provider will recommend an approach based on your symptoms, examination findings, previous treatments, and overall diagnosis.
Better Stability Can Mean Better Function
When the multifidus is not activating properly, the spine may lose some of its natural support. Utah Spine & Pain evaluates the complete picture to determine whether impaired spinal stability may be contributing to your pain and which treatment options may be appropriate.
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