How common is lower back pain — really?
Lower back pain is one of the most widespread physical complaints in the world. Studies estimate that around 80% of people will experience significant lower back pain at some point in their lives. It is the leading cause of disability globally and one of the most frequent reasons people visit a doctor or take time off work.
Yet despite its prevalence, many people simply accept it — or turn to pain medication as their only tool. What is often overlooked is that a large proportion of lower back pain has a specific mechanical cause: compression. The discs between the vertebrae are being squeezed, narrowed, or pushed out of alignment — and this is something that can often be actively addressed.
Collapsed discs and pinched nerves explained
To understand why decompression works, you first need to understand what is happening in the spine when back pain strikes.
The spine is made up of 33 vertebrae stacked on top of each other, separated by intervertebral discs. These discs act as cushions — absorbing shock, enabling movement, and maintaining the height and spacing between each vertebra. Each disc has a tough outer ring (the annulus fibrosus) and a soft, gel-like centre (the nucleus pulposus).
Over the course of a day — and over the years — gravity, poor posture, repetitive loading, and ageing all place downward pressure on these discs. As a result:
- Discs lose height and become thinner (disc degeneration)
- The gel centre can push outward through cracks in the outer ring (bulging or herniated disc)
- The space between vertebrae narrows (spinal stenosis)
- Nerves that exit the spine become squeezed or irritated (nerve compression)
"When a disc collapses or bulges, it can press directly onto the nerve roots that exit the spinal canal — triggering pain, numbness, tingling, or weakness that can radiate far down into the legs. This is commonly known as sciatica."
Research shows that increases in disc pressure from gravitational forces, heavy lifting, and prolonged sitting are key factors in this process. The nerve roots are not just compressed mechanically — the fluid from a ruptured disc can also trigger a toxic inflammatory reaction in the surrounding tissue, amplifying pain signals significantly.
Which conditions cause back pain this way?
The following conditions all share disc compression or nerve irritation as a central feature — and are all conditions where decompression therapy has been studied as a supportive approach:
Herniated disc
The disc's soft inner core pushes through the outer ring and presses onto nearby nerve tissue. One of the most common causes of acute lower back pain and sciatica.
Bulging disc
The disc extends beyond its normal boundary without fully rupturing. Often asymptomatic but can become painful when it contacts a nerve root.
Degenerative disc disease
Age-related loss of disc height and hydration leads to stiffness, narrowed nerve channels, and chronic lower back pain — often worsening after long periods of sitting.
Sciatica
Compression of the sciatic nerve — typically from a disc issue at L4-L5 or L5-S1 — causes shooting pain, numbness, or weakness that runs from the lower back down through the leg.
Spinal stenosis
A narrowing of the spinal canal that squeezes the spinal cord or nerve roots, causing pain and heaviness in the legs that often worsens when walking or standing.
Facet joint syndrome
When the small stabilising joints between vertebrae become compressed or inflamed, they cause stiffness and pain that is often worse in the morning or after prolonged sitting.
What is spinal decompression?
Spinal decompression therapy works on a simple but powerful principle: by gently creating space between compressed vertebrae, pressure on discs and nerve roots is reduced. When done correctly, this creates a negative pressure within the disc — essentially a gentle suction effect that can help draw the disc back towards its normal position and encourage the inflow of nutrients, oxygen, and hydration into dehydrated disc tissue.
In a clinical setting, this is typically achieved using a motorised traction table — a session costs anywhere from €60 to €150, and a full treatment course may require 12 to 20 visits. The results are well-documented, but the cost and logistics of repeated clinic appointments make it inaccessible for many people.
An inflatable decompression brace brings this same mechanical principle into the home. When worn snugly around the lower back and inflated with the hand pump, the brace expands vertically — lifting the ribcage slightly away from the pelvis, elongating the lumbar spine, and creating that same decompressive effect on the discs and nerve roots.
Place the deflated brace around your lower back, centred over the lumbar spine. Fasten it securely but comfortably — it should feel snug against the body.
Use the included hand pump to gradually inflate the brace. As it expands vertically — typically by several centimetres — it begins to gently separate the vertebrae and lift weight off the lumbar discs.
With the spine gently elongated, pressure inside the compressed discs drops. This negative pressure effect may help reduce the disc's outward bulge and ease compression on nearby nerve roots — the root cause of sciatica and radiating leg pain.
The brace simultaneously offloads the surrounding muscles and ligaments that have been working overtime to compensate for the disc issues — allowing them to rest and recover while the spine is supported in a more neutral position.
Unlike a clinic traction table, the brace can be worn while sitting, walking, or resting. Regular daily sessions of 20–30 minutes are typically recommended for the best cumulative effect.
What studies show
Non-surgical spinal decompression is one of the more extensively studied conservative treatments for disc-related lower back pain. Here is a summary of key findings:
Nonsurgical decompression reduces disc volume and leg pain in herniated disc patients
In a study of 60 patients with lumbar disc herniation, the decompression group showed significantly lower leg pain at 2 months, significantly better disability scores at 2 and 3 months, and a 27.6% average reduction in herniation index on MRI — compared to just 7.1% in the control group. Around 27% of decompression patients achieved over 50% reduction in herniation.
View on PMC →VAX-D decompression therapy — 65% of patients achieved pain scores of 0 or 1
A study including 31 patients who had previously undergone lumbar disc surgery found that vertebral axial decompression still delivered meaningful results: 84% saw improvement in pain scores, 71% in mobility, and 65% reached near-zero pain levels. Decompression was considered a primary treatment modality for herniated discs, degenerative disc disease, and facet arthropathy.
View study →Decompression therapy increases disc height and reduces pain
Thirty patients with discogenic lower back pain or disc herniation received decompression therapy over 6 weeks. CT imaging confirmed a significant increase in disc height — indicating that the therapy was actively restoring disc structure, not merely masking pain.
View on PMC →71–89% pain relief success rates for disc herniation at L4-L5
A review of clinical studies on spinal decompression for herniated discs — particularly at the L4-L5 level, one of the most common sites — found pain relief and improved mobility in 71–89% of patients. A 2010 trial reported 85% positive outcomes after 6–8 weeks of therapy.
View source →It is important to note that study designs, patient populations, and decompression equipment vary. The research broadly supports decompression as a useful conservative, non-surgical approach — most effective when used consistently and as part of a broader back health routine. It is not a replacement for medical advice or diagnosis.
How the decompression brace works at home
Professional spinal decompression sessions are effective — but with prices ranging from €60 to €150 per session and typical treatment courses spanning 12 to 20 sessions, the total cost can quickly reach €1,000 or more. Many people simply cannot commit to that, whether due to cost, schedule, or mobility.
The Dutch Posture decompression lower back belt brings the core mechanism of clinical traction directly into daily life. Using an air-inflation system, the brace expands vertically when pumped up — gently elongating the lumbar spine, lifting pressure off compressed discs, and creating the negative pressure environment that professional decompression tables are designed to produce.
It can be worn at home while relaxing, but also during light activity — walking, sitting at a desk, or even commuting. This means you can accumulate decompression time throughout the day rather than relying on a single clinic appointment each week.