What Is Spinal Traction and How Does It Work?
Lumbar traction is a therapeutic technique that applies a stretching force to the lumbar spine — mechanically elongating the space between vertebrae. This elongation creates a drop in intradiscal pressure (the pressure inside spinal discs), which has two potential benefits. First, the negative pressure can act like a vacuum that draws bulging disc material back towards the disc's centre, reducing how much it protrudes towards the spinal nerves. Second, the increased disc height temporarily widens the foramen (the channels where nerves exit the spine), reducing nerve compression.
In hospital and physiotherapy settings, traction is applied using motorized traction tables that can precisely control the pulling force. Home traction devices work on the same principle but with lighter, gentler forces — making them safer for unsupervised use but also less powerful than clinical traction.
The conditions that traction most commonly helps are: herniated (slipped) disc, lumbar disc bulge, lumbar spondylosis with nerve root compression, and sciatica caused by disc problems. Traction is less effective (and may be harmful) for spondylolisthesis, osteoporosis, spinal infections, or inflammatory arthritis.
Home Traction vs Hospital Physiotherapy Traction
Physiotherapy traction tables can apply 40–60% of body weight as traction force under a clinician's supervision with precise control. Home traction devices apply much gentler forces — typically 10–20 kg equivalent for inflatable decompression belts, or body weight-based forces for inversion tables.
This means home devices are gentler and safer, but also less powerful. For mild to moderate disc problems, gentle home traction used consistently over several weeks can provide meaningful relief. For severe disc herniations, formal physiotherapy traction is more appropriate. Many physiotherapists in India now recommend home traction devices as a between-session maintenance tool, particularly the Leamai inflatable decompression belt.
Best Lumbar Traction & Decompression Devices in India (2025)
Traction Device Comparison Table
| Product | Traction Force | Safe for Home | Conditions Helped | Price (INR) |
|---|---|---|---|---|
| Leamai Inflatable Belt | Gentle (10–20 kg) | Yes | Disc herniation, sciatica | ₹1,500–₹2,500 |
| Over-Door Traction Kit | Moderate (adjustable) | With care | Disc, nerve compression | ₹2,000–₹4,000 |
| SpineDeck / Lumbar Stretcher | Passive extension | Yes | Facet pain, stiffness | ₹800–₹1,500 |
| Inversion Table | High (body weight) | With clearance | Disc, nerve, general back pain | ₹8,000–₹20,000 |
| Cervical Traction Device | Gentle (for neck) | Yes | Neck disc, cervical radiculopathy | ₹800–₹1,200 |
- Osteoporosis — traction can fracture weakened vertebrae
- Spinal fractures (diagnosed or suspected)
- Spinal infections or tumours
- Pregnancy
- Severe spondylolisthesis (vertebral slippage)
- Uncontrolled hypertension (especially for inversion tables)
- Glaucoma or retinal detachment (inversion tables)
- People with pacemakers (some traction devices with electrical components)
How to Use a Home Traction Device Safely
- Start with the minimum traction force and increase only after 2–3 sessions with no adverse reaction
- Sessions should be 10–15 minutes initially — increase to 20 minutes maximum if well-tolerated
- Traction should feel like a gentle stretch — NOT pain. Stop immediately if you feel increased pain
- If you experience increased numbness, tingling, or weakness during traction, stop and see a doctor
- Do not use traction during an acute injury flare (first 48–72 hours)
- Allow at least a day between first few sessions to assess your response
- Use in a calm, relaxed position — muscle tension reduces traction effectiveness
Frequently Asked Questions
Clinical evidence is mixed but generally supportive for specific conditions. Multiple randomised controlled trials show that lumbar traction provides moderate benefit for herniated disc with sciatica — better than sham traction. However, results vary significantly between individuals. Traction works best as part of a comprehensive treatment plan (physiotherapy + exercises + lifestyle changes), not as a standalone intervention. Those with disc herniation and nerve root compression tend to see the best results.
Home traction is most appropriate for adults with confirmed herniated or bulging lumbar discs causing sciatica or nerve pain, who have been assessed by a doctor or physiotherapist and cleared for traction therapy. It is not appropriate as a first-line intervention before getting a diagnosis. If you have vague back pain without imaging or clinical assessment, see a physiotherapist before investing in a traction device.
Incorrectly applied traction — too much force, wrong positioning, or use during the acute inflammatory phase — can temporarily worsen symptoms. This is more likely with inversion tables at steep angles than with gentle pneumatic belts. Always follow the guidelines: start gentle, use for short sessions, and stop if pain increases. Gentle home traction devices used correctly are unlikely to cause harm but will not benefit everyone.
Begin with 10–15 minute sessions. If you experience relief without increased pain or neurological symptoms (numbness, tingling, weakness) during or after the session, you can extend to 20 minutes. Do not exceed 20–25 minutes per session. Take a full day between early sessions to assess your response. Daily use can begin once you have established your tolerance and confirmed the device provides benefit for you.
Physiotherapy is more effective, more comprehensive, and addresses root causes. A good physiotherapist will use manual therapy, specific exercises (McKenzie method, nerve mobilisation), postural correction, and possibly electrotherapy — all tailored to your specific diagnosis. A home traction device is a useful supplement between physiotherapy sessions, not a replacement. If you can afford only one investment, physiotherapy with an experienced practitioner will give you better long-term outcomes than any home device.
Affiliate Disclosure: Links on this page are affiliate links. If you purchase through these links, we earn a small commission at no extra cost to you.