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Sciatica Physiotherapy
What is Sciatica
The sciatica nerve is the longest and widest nerve in the body that starts in the lower back and runs down the pelvis to the back of the legs. The nerve controls the muscles in the lower leg and back of the knee. Sciatica pain is caused when a nerve in the lower back is irritated, inflamed, pinched, or squished. Lumbar radiculopathy is the other names for this condition. The term “Sciatica” is widely used to describe any discomfort that begins in the lower back and travels along the path of the nerve. With proper treatment, most people who have sciatica get better. But sciatica can cause pain that lasts for a long time. A Pinched nerve can cause long-term muscle weakness, like “drop foot,” which is when numbness in the foot makes it impossible to
walk normally. Sciatica can cause permanent nerve damage, which can make the affected legs lose their sense of touch. Therefore, it is very important to seek medical help immediately.
Causes of Sciatica Pain
Sciatica occurs when the sciatic nerve — the longest nerve in your body — becomes compressed, irritated, or inflamed. This nerve runs from your lower back through your hips and down each leg, which is why sciatica pain can travel from your lower back all the way to your foot.
The most common causes of sciatica include:
- Herniated or Slipped Disc — When a spinal disc bulges out of place, it presses directly on the sciatic nerve, causing sharp pain, numbness, or tingling down the leg.
- Spinal Stenosis — A narrowing of the spinal canal that compresses the nerves in your lower back, commonly affecting adults over 50.
- Piriformis Syndrome — Tightness or spasm in the piriformis muscle in the buttock irritates the sciatic nerve, causing deep gluteal and leg pain.
- Degenerative Disc Disease — Age-related wear and tear on spinal discs reduces cushioning between vertebrae, placing pressure on surrounding nerves.
- Spondylolisthesis — When one vertebra slips forward over another, it can pinch the sciatic nerve and trigger radiating leg pain.
- Poor Posture & Sedentary Lifestyle — Prolonged sitting, poor posture, and weak core muscles increase pressure on the lower spine and sciatic nerve over time.
At RCP Health, our physiotherapists identify the root cause of your sciatica — not just the symptoms — to deliver targeted treatment that provides lasting relief.
Signs and Symptoms
Sciatica usually affects adults and can rarely be seen in kids or teens. The symptoms show up on one side of the body, where the affected nerve root is. The symptoms may come and go, and may vary. Some of the common symptoms are mentioned below:
- Radiating Pain, burning, or a shock-like sensation in the buttocks, hip, and/or leg
- Mild tingling in the toes
- Lower back pain
- Tingling or numbness in the buttocks, hip, and/or leg.
- Lack of strength in the hip and/or the leg.
- Incontinence of the bowels or the bladder
- Sexual impotence or dysfunction
In general, symptoms such as weakness as well as issues with the bowels, bladder, or sexual function are indicators of more extensive nerve or spine involvement that, if not addressed, may have long-term implications.
Sciatica Do's and Don'ts — What Helps and What Makes It Worse
The following should be considered when treating for Sciatica:
Do's- What You Should Do
Stay Gently Active Light walking and gentle stretching keep blood flowing to the nerve and reduce inflammation. Complete bed rest slows recovery.
Apply Heat or Ice Use ice for the first 48–72 hours to reduce swelling, then switch to heat to relax tight muscles. Always wrap in a towel — never apply directly to skin.
Sleep in a Supported Position Sleep on your side with a pillow between your knees to keep your spine aligned and reduce sciatic nerve pressure.
Strengthen Your Core Gentle core exercises — guided by your physiotherapist — support the spine and relieve pressure on the sciatic nerve long term.
Seek Physiotherapy Early Early treatment prevents sciatica from becoming chronic. Book an assessment at RCP Health as soon as symptoms begin.
Don'ts — What You Should Avoid
Don’t Sit for Long Periods Prolonged sitting compresses the lumbar spine and worsens sciatic pain. Stand up and move every 30 minutes.
Don’t Lift Incorrectly Always bend your knees, keep your back straight, and hold objects close to your body when lifting.
Don’t Ignore the Pain Untreated sciatica can lead to permanent nerve damage. If symptoms persist beyond a few days — seek professional care immediately.
Don’t Do High-Impact Exercise Avoid running, jumping, and heavy lifting until your physiotherapist clears you to return.
Don’t Sleep on Your Stomach Stomach sleeping increases pressure on the lower back and sciatic nerve. Switch to side or back sleeping instead.
Don’t Self-Medicate Masking pain without treating the root cause delays recovery. Always get a proper physiotherapy assessment first.
How Physiotherapy Treats Sciatica at RCP Health Oakville
Physiotherapy is one of the most effective non-surgical treatments for sciatica. At RCP Health Oakville, we don’t just relieve symptoms — we target the root cause of your sciatic nerve compression for lasting recovery.
Comprehensive Assessment
Before any treatment begins, our physiotherapist conducts a detailed evaluation of your spine, posture, movement patterns, and lifestyle to pinpoint the exact source of sciatic nerve irritation — ensuring your treatment plan is precise, targeted, and built around your specific condition.
Manual Therapy
Our physiotherapists use hands-on spinal mobilization, soft tissue release, and neural mobilization techniques to relieve nerve pressure, loosen tight muscles around the lower back and piriformis, and restore natural spinal mobility — delivering both immediate and progressive relief.
Electrotherapy & Modalities
Where appropriate, TENS therapy is applied to block pain signals and provide immediate relief during flare-ups. Ultrasound therapy works deeper — reducing inflammation and accelerating tissue healing directly around the affected sciatic nerve.
Targeted Exercise Rehabilitation
Exercise is the cornerstone of long-term sciatica recovery. Our physiotherapists prescribe a progressive program of nerve-decompression stretches, core strengthening, and functional movement exercises to rebuild strength, restore mobility, and protect against future flare-ups.
Home Exercise Program
Recovery doesn’t stop when you leave the clinic. Your physiotherapist provides a customized home exercise plan with clear instructions so progress continues between sessions — accelerating your overall healing timeline.
Posture & Lifestyle Coaching
Long-term sciatica prevention means addressing the habits that caused it. Our team provides ergonomic advice for desk workers, posture correction strategies, safe lifting techniques, and personalized guidance on returning to sport and daily activity safely.