Authored by Ashitha Abdul Ashraf, Senior Consultant Physiotherapist – Incharge | Medically Reviewed by Dilshana Thasni T, Senior Consultant Physiotherapist | Last Reviewed: June 2026
Sciatica is one of the most mismanaged conditions in Kerala. People rest for weeks, take painkillers, and wait. The pain comes back. Sometimes worse.
The research is clear: for most sciatica caused by disc herniation or nerve compression, specific targeted movement produces better outcomes than rest. The right exercises reduce nerve irritation, take pressure off the compressed disc, and restore normal movement patterns. The wrong exercises make things significantly worse.
This guide gives you seven exercises with strong clinical evidence behind them. It also tells you what to avoid, because for sciatica, the wrong movement is as important to know as the right one.
What Is Sciatica and What Causes It
Sciatica is not a diagnosis. It is a symptom — pain, numbness, or tingling that travels from the lower back through the buttock and down the leg, sometimes reaching the calf or foot.
The cause is compression or irritation of the sciatic nerve, which is the largest nerve in the body. It runs from the lower lumbar spine through the buttock and down each leg.
The most common causes in Kerala patients are:
Lumbar disc herniation. A disc at L4-L5 or L5-S1 bulges or herniates and presses on the nerve root. This is the most common cause in people under 50.
Spinal stenosis. Narrowing of the spinal canal compresses the nerve roots. More common in people over 50. Walking worsens symptoms. Sitting or bending forward brings relief.
Piriformis syndrome. The piriformis muscle in the buttock tightens and compresses the sciatic nerve as it passes through or beneath the muscle. Produces similar symptoms to disc-related sciatica but the source is the buttock, not the spine.
Spondylolisthesis. One vertebra slips forward over the one below, narrowing the nerve exit point.
The exercises that work for disc-related sciatica are different from those that work for stenosis-related sciatica. This is why a physiotherapy assessment before starting any exercise program matters. Doing the wrong exercises for your specific cause can worsen nerve compression.
Before You Start: Two Rules
Rule one. Stop any exercise that increases your leg pain or pushes symptoms further down your leg. A temporary increase in back pain during an exercise is acceptable. Worsening leg symptoms or numbness is not. Stop immediately and reassess.
Rule two. These exercises are appropriate for most disc-related sciatica. If your sciatica is from spinal stenosis, some of the extension-based exercises below may worsen your symptoms. If you are unsure of your diagnosis, get assessed before starting.
The 7 Exercises
1. Prone Lying (McKenzie Starting Position)
Why it works: For disc herniation, lying flat on your stomach shifts the disc material away from the nerve root and reduces nerve compression. Many patients notice immediate reduction in leg symptoms in this position.
How to do it: Lie face down on a firm surface with your arms by your sides and your head turned to one side. Stay in this position for 5 minutes. If leg symptoms reduce or centralise toward the back, this is a good sign.
Frequency: 3 to 4 times per day, particularly in the early stages of a flare-up.
2. Prone Press-Up (McKenzie Extension)
Why it works: The press-up extension movement further centralises disc material away from the nerve. Research by physiotherapist Robin McKenzie showed that repeated lumbar extension reduces and eventually eliminates leg symptoms in a significant proportion of disc herniation cases.
How to do it: Lie face down. Place your hands under your shoulders as if about to do a push-up. Press your upper body upward while keeping your hips on the floor. Go only as far as is comfortable. Hold 1 to 2 seconds at the top, lower slowly. Repeat 10 times.
Important: If this increases leg symptoms, stop. This exercise works for most disc herniations but not all.
Frequency: 10 repetitions, 3 to 4 times per day.
3. Sciatic Nerve Flossing (Neural Mobilisation)
Why it works: When the sciatic nerve is irritated, it loses its ability to slide freely through surrounding tissue. Neural mobilisation restores this mobility, reduces nerve sensitivity, and improves leg symptoms.
How to do it: Sit upright on a chair. Straighten your affected leg out in front of you while simultaneously tilting your head back. Then bend your knee and drop your head forward. This alternating movement gently mobilises the nerve through its full path. Repeat 10 to 15 times smoothly and rhythmically.
Frequency: 2 to 3 times per day. This should feel like a mild stretch, not pain.
4. Knee to Chest Stretch
Why it works: Gently flexes the lumbar spine, creating space in the posterior disc and reducing nerve root compression. Also releases lumbar and gluteal muscle tightness that develops around an irritated sciatic nerve.
How to do it: Lie on your back with knees bent. Bring one knee toward your chest with both hands. Hold 20 to 30 seconds. Switch sides. Then bring both knees to your chest and hold 20 to 30 seconds.
Frequency: 3 repetitions each side, twice per day.
5. Piriformis Stretch
Why it works: The piriformis muscle sits deep in the buttock and can compress the sciatic nerve when tight. This is the primary treatment for piriformis syndrome sciatica and a useful supplementary exercise for disc-related sciatica where buttock tightness is present.
How to do it: Lie on your back with knees bent. Cross the ankle of your affected leg over the opposite knee. Gently push the crossed knee away from you until you feel a deep stretch in the buttock. Hold 30 seconds. Repeat 3 times each side.
Frequency: Twice per day.
6. Bird Dog
Why it works: Activates the deep stabilising muscles of the spine — the multifidus and transverse abdominis — without loading the discs. Strengthening these muscles reduces the mechanical load on the disc and provides better spinal support during daily activity.
How to do it: Start on hands and knees. Keep your spine in a neutral position — not arched, not rounded. Slowly extend your right arm forward and your left leg back simultaneously. Hold 5 seconds. Return to start. Switch sides. Repeat 10 times each side.
Important: Keep your hips level. Do not let the raised leg side drop. If your lower back arches when you lift the leg, reduce the range of movement.
Frequency: 2 sets of 10 repetitions, once per day.
7. Walking
Why it works: Walking is consistently underrated as a sciatica treatment. It activates the deep spinal stabilisers, maintains disc hydration through normal movement, reduces nerve sensitivity through gentle repetitive loading, and prevents the muscle deconditioning that prolonged rest causes.
How to do it: Start with 10 minutes at a comfortable pace. Increase by 5 minutes every two to three days as tolerated. Target 20 to 30 minutes per day.
If walking significantly worsens your leg symptoms and you have been told you have spinal stenosis, limit walking distance to your symptom-free threshold and discuss this specifically with your physiotherapist.
Frequency: Daily.
Exercises to Avoid With Sciatica
These movements consistently worsen disc-related sciatica and should be avoided during active symptoms.
Sit-ups and crunches. Lumbar flexion under load dramatically increases intradiscal pressure. This is the opposite of what a compressed disc needs.
Toe touches and forward bending. Same principle. Forward bending loads the posterior disc, pushing herniated material further toward the nerve.
Heavy deadlifts or squats. High-load spinal compression during active nerve irritation worsens symptoms and risks further disc damage.
Long periods of sitting without breaks. Sustained sitting increases disc pressure and worsens nerve compression. If your job requires sitting, set a timer and stand every 30 minutes.
High-impact running during a flare. Running creates repetitive spinal loading that inflames an already irritated nerve root. Walking is appropriate. Running during an acute flare is not.
When Exercises Are Not Enough
For most mild to moderate disc-related sciatica, these exercises combined with activity modification produce significant improvement within four to eight weeks.
They are not sufficient for everyone.
If you have had sciatica for more than 8 weeks without adequate improvement, if your leg pain is severe, or if you have numbness or weakness in your leg, you need more than exercise.
Spinal decompression therapy directly addresses the disc compression that is causing your sciatic nerve irritation. It creates negative intradiscal pressure that pulls herniated material away from the nerve — something no exercise can achieve mechanically. Many patients with chronic sciatica who have tried exercise, medication, and injections without adequate relief experience significant improvement within 10 to 15 spinal decompression sessions.
The combination of spinal decompression and targeted exercise produces better outcomes than either alone.
Frequently Asked Questions
How long before these exercises reduce my sciatica?
For disc-related sciatica, most patients notice some improvement in leg symptoms within two to three weeks of consistent daily exercise. If there is no change after four weeks, get a physiotherapy assessment. The exercises may not be matched to your specific cause.
Can I do these exercises during a severe flare?
Start with prone lying only during a severe flare. It is the most gentle and most likely to provide immediate relief. Introduce the others gradually as symptoms allow. Do not push through severe leg pain with exercise.
My sciatica comes and goes. Should I still exercise when I am pain-free?
Yes. Recurring sciatica means the underlying cause — a weak disc, poor spinal stability — is still present. Continuing the strengthening exercises between episodes significantly reduces recurrence frequency and severity.
Is yoga good for sciatica?
Some yoga poses are helpful. Many are not. Forward folds, seated twists, and poses that load the spine in flexion can worsen disc-related sciatica. If you do yoga, tell your instructor about your condition and avoid all forward bending poses during active symptoms.
When should I stop exercising and see a doctor immediately?
If you develop numbness in the groin or inner thighs, or lose control of your bladder or bowel, stop all exercise and go to a hospital immediately. This is cauda equina syndrome and requires emergency surgical assessment.
Sciatica that has lasted more than eight weeks needs more than exercise. Maana Health offers spinal decompression therapy and targeted physiotherapy for sciatica across five clinics in Kerala — Kochi, Calicut, Perinthalmanna, Aluva, and Trivandrum. Book a free assessment and find out exactly what is causing your sciatica and what will fix it.