When most people think of a chiropractic adjustment, they picture a chiropractor applying a precise movement to the spine, sometimes accompanied by a familiar popping sound. But what if the most interesting part isn’t what happens to the joint, but what happens inside your nervous system?
The connection between a spinal adjustment and your nervous system goes beyond simple joint movement.
Your spine does much more than support your body. It’s also an important source of sensory information that helps your brain understand where your body is, how it’s moving and how to respond to its surroundings.
Research into spinal neurophysiology suggests that spinal adjustments can influence how the nervous system receives, processes and responds to sensory information.
So, what actually happens when your spine gets adjusted?
Your Spine Is Constantly Communicating With Your Brain
Even when you’re sitting still, your nervous system is incredibly busy.
Specialised sensory receptors in your muscles, joints and surrounding tissues continuously send information to your brain about movement, position and tension. This process, known as proprioception, helps you maintain balance, coordinate movement and respond to changes around you.
Think about walking across uneven ground. You don’t consciously calculate every movement of your feet, knees and hips. Instead, your nervous system processes sensory feedback and continually adjusts muscular activity to help keep you stable.
Your spinal joints and surrounding muscles contribute to this important communication.
When spinal movement becomes restricted or uncomfortable, sensory information from these structures may change. Researchers are investigating how these changes influence the way your nervous system interprets movement and coordinates muscular responses.
This is one reason chiropractic research increasingly explores the relationship between spinal function and the brain.
What Happens During a Spinal Adjustment?
A spinal adjustment involves applying a carefully controlled force to a specific spinal joint.
Although the movement itself may happen in a fraction of a second, it creates mechanical stimulation that activates sensory receptors in the surrounding tissues.
These include muscle spindles, which detect changes in muscle length, and other specialised nerve endings that respond to movement and mechanical pressure.
A significant scientific review by Pickar (2002), published in The Spine Journal, examined the neurophysiological effects of spinal adjustments.
The review described experimental evidence that spinal adjustments can:
- Stimulate sensory nerve pathways.
- Influence spinal reflex activity.
- Alter the excitability of motor neurons involved in muscle control.
In simpler terms, a spinal adjustment doesn’t just move a joint. It also creates sensory signals that the nervous system processes.
This helps explain why chiropractic researchers continue to investigate the neurological effects of spinal adjustments alongside their mechanical effects on the spine.
How a Spinal Adjustment May Influence Your Nervous System
Your brain doesn’t simply receive information from your body. It constantly interprets that information and uses it to guide movement.
Scientists call this process sensorimotor integration.
Imagine catching a ball. Your eyes track its movement, your brain predicts where it will land and your muscles respond with precisely timed movements.
Successful coordination depends on sensory information being received and processed effectively.
Research by New Zealand chiropractor and researcher Heidi Haavik and neuroscientist Bernadette Murphy (2012) explored how spinal function and spinal adjustments may influence sensorimotor integration and motor control.
Their review, published in the Journal of Electromyography and Kinesiology, examined research demonstrating measurable changes in central nervous-system processing following spinal adjustments.
These findings suggest that spinal adjustments can influence neurological processes involved in sensory processing and movement control.
While researchers are still exploring how these neurological responses translate into longer-term functional improvements, the findings provide valuable insight into the connection between spinal function and nervous-system activity.
Why the Brain–Body Connection Matters Beyond Back Pain
Many people associate chiropractic care with neck pain, back pain or stiffness. However, the relationship between spinal movement and nervous-system processing offers another important perspective.
Your nervous system relies on sensory feedback to coordinate everyday activities, from maintaining posture at your desk to balancing on one leg or performing exercises at the gym.
When a spinal adjustment changes sensory input, it may also influence how the nervous system responds to movement. This relationship is particularly interesting to researchers studying proprioception, postural control and neuromuscular coordination.
Of course, neurological responses can vary between individuals. Research has not yet established that every adjustment produces identical changes or that these changes always lead to measurable improvements in physical performance.
Nevertheless, understanding these responses helps us appreciate why spinal function is relevant to more than just the sensation of pain.
Supporting the Connection Between Your Spine and Nervous System
The relationship between your spine and nervous system is remarkably complex.
Every movement, stretch and change in posture provides information that your brain uses to understand and coordinate your body.
Chiropractic care considers this relationship when assessing spinal movement, joint function and physical discomfort.
Depending on your individual needs, care may include specific spinal adjustments, movement exercises and practical advice to support healthier movement patterns.
The science of spinal neurophysiology reminds us that an adjustment can involve more than the movement we see or hear.
It can also trigger measurable responses within the nervous system.
This is an exciting area of chiropractic research that continues to expand our understanding of how the spine and nervous system interact.
Discover What Your Spine Might Be Telling You
You don’t have to wait until your back or neck becomes painful to take an interest in how your spine moves and functions.
At NorWest Chiropractic, we take a personalised approach to understanding your spinal health, posture and movement patterns.
Our chiropractors consider how spinal movement and joint function may contribute to your overall physical wellbeing.
Whether you’re experiencing stiffness, noticing changes in your mobility or simply want to understand your spinal health better, we’re here to help.
Book a consultation with NorWest Chiropractic and discover how chiropractic care may support your spinal function and mobility.
Your spine and nervous system are constantly communicating. Understanding that connection is an important part of looking after your body.
Sources:
[1] Pickar, J.G. (2002). Neurophysiological effects of spinal manipulation. The Spine Journal, 2(5), 357–371. [Link]
[2] Haavik, H., & Murphy, B. (2012). The role of spinal manipulation in addressing disordered sensorimotor integration and altered motor control. Journal of Electromyography and Kinesiology, 22(5), 768–776. [Link]