Understanding Low Back Pain | Postural Pain Syndrome

Introduction

Low back pain (LBP) is one of the most common ailments affecting millions of people worldwide. It’s estimated that 80% of the population will suffer from LBP at some point in their lives. Billions of dollars are spent each year in the U.S. for care of spine-related conditions [1]. While many of the causes of LBP involve injuries, degenerative processes, or other issues, often overlooked are pain-related generalized laxity and loss of dynamic control. This condition is referred to as Postural Pain Syndrome. This type of pain is not confined to the lower back and often affects the cervical region and the thoracic spine. 

Postural pain syndrome occurs when the muscles that surround the spine fail to control the posture and movement in a neutral position, leading to pain and dysfunction. Over time, instability can cause pain, especially when exposed to prolonged periods of poor posture or faulty movement. Therefore, it is essential to identify instability to design an effective treatment plan to relieve pain and restore normal function. 

Postural Pain Syndrome Explained

Postural pain syndrome occurs when the body’s postural muscles are weak or ineffective at providing the necessary support for the spine. When this happens, the body relies on passive structures like the ligaments, joint capsules, and discs. Panjabi, in a classic paper written in 1992 [2], explains how the spine’s stability is achieved through three systems.

  • The Passive System comprises all passive structures, including the body vertebrae, ligaments, discs, and joint capsules. 
  • The Active System makes up all of the muscles surrounding the spine and the global or outer, more powerful muscles responsible for larger movements. 
  • The Neural Control System Coordinates and controls the muscles to stabilize the spine in the neutral zone. 
If the muscles are weak, lack adequate endurance, and are not functions correctly, controlling the spine posture and movements will be difficult and often lead to pain. Typically, individuals with this type of pain will experience it after long periods of standing or sitting. The pain often improves with movement, only to return after exposing the spine to another episode of prolonged posture. 

Key Populations Prone to Postural Pain

Postural pain from generalized laxity or poor dynamic control is more common in specific populations. These individuals are more prone to factors that contribute to postures, like prolonged sitting, weak muscles, or laxity in their spine. Here are some common populations prone to postural pain.

1. Individuals with Generalized Laxity

People with conditions like Ehlers-Danlos Syndrome or those born with more laxity than usual are predisposed to postural instability. When we were kids, we all remember the double jointed person who count touch their hands flat on the floor or wrap their arm behind their head. One self-test you can perform to find out is known as the Beighton Scoring System:

Beighton Score Infographic_ Salinas PT

Image Sourced from The Elhers-Danlos Society

2. Sedentary Individuals and Office Workers

People who spend hours behind a desk or those who lack regular activity can develop underdeveloped muscles. Sitting at a desk for hours and weeks at a time can result in muscle imbalances such as tight hip flexors and long and weakened core and postural muscles.

3. Pregnant Women and Postpartum Individuals

During the last few moths of the pregnancy, as the abdomen grows the center of gravity shifts placing more load on the spine. In addition, during the last trimester, a hormone called relaxin is released which increases ligamentous laxity to prepare the birth canal for the child’s birth. Following the pregnancy the abdominal muscles are stretched or sometimes severed, in the case of C-section, which further weakens the muscles unable to stabilize the spine.

Postural-Pain-Syndrome-During-Pregnancy_SalinasPT

Improving Spinal Stability

Improving spinal stability is a proven method to reduce low back pain because it enhances the body’s ability to support and protect the spine during movement. Spinal stability involves the coordination of deep core muscles, such as the transverse abdominis, and multifidus, which act as a natural brace fro the lower back. 

When these muscles are engaged, they minimize the likelihood of pain or injury. A stable spine allows for better load distribution and movement efficiency, which is especially important for individuals with chronic low back pain or those recovering from an acute injury.

Targeted exercises to improve spinal stability not only alleviate existing pain, but also serve as a preventative strategy.  To get started, here are some simple exercises that can improve your postural strength:

1. Bridging

  • Lay on your back with your knees bent and feet shoulder-width apart.  
  • Tighten your abs and squeeze your glutes together.
  • Inhale and roll your pelvis back on to the mat, lifting your bottom off the floor.
  • Inhale at the top, then exhale as you lower yourself back down. 
  • Repeate for 10-15 times for 2-3 sets.

2. Planks

  • Begin by lying on your stomach with both forearms under your chest.
  • Keeping your abdominals tight, push up through your forearms so that your chest, hips and knees are off the ground. You should be able to draw a straight line from your ankles, through your hops to your shoulders. 
  • Hold for 20-30 seconds and repeat 3-5 times.

3. Standing T's with Resistance

Standing T's_ SalinasPT
  • Begin standing with a band anchored at chest height in front of you.
  • Engage your shoulder blades down and back as your bring your arms backwards along the horizontal plane.
  • Focus on activating your shoulder blade muscles.
  • Perform the movement slowly with good control.
  • Repeat 10-15 times for 2-3 sets. 

Conclusion

Postural Pain Syndrome arises when muscles surrounding the spine fail to stabilize is effectively, leading to excessive strain on spinal ligaments, discs, and joints. Over time, this instability can cause chronic pain, particularly when the spine is subjected to prolonged periods of poor posture or movement patters. As a result identifying and treating instability in the spine is crucial to relieving pain and restoring proper function. 

Since LBP is one of the most common conditions that present in our clinic, we feel the duty to help educate our audience on the ways to reduce the painful symptoms. Over time, improved spinal stability can decrease pain flare-ups and enable individuals to participate in daily activities and sports with less discomfort, contributing to overall quality of life. If you, or someone you know is suffering from LBP, our team can help. Contact us to get started!

– The Salinas PT Team

References:

[1] Waterman, B. R., Belmont, P. J., & Schoenfeld, A. J. (2012). Low back pain in the United States: Incidence and risk factors for presentation in the emergency setting. The Spine Journal, 12(1), 63-70. https://doi.org/10.1016/j.spinee.2011.09.002

[2] Panjabi MM, The Stabilizing System of the Spine** (1992): This classic paper explains the concept of spinal stability and how the body’s passive (ligaments, bones), active (muscles), and neural control systems interact to maintain stability.

[3] Cook et al., Diagnosis and Treatment of Lumbar Spinal Instability** (2011): This article reviews various diagnostic tests, including the Prone Instability Test, and explores conservative treatments for spinal instability.

[4] Hicks et al., Lumbar Segmental Instability: A Clinical Review** (2005): This review offers a detailed examination of lumbar instability, outlining clinical approaches to diagnosis and rehabilitation.

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