Knee Pain When Running or at the Gym: IT Band Syndrome, Runner's Knee and What Actually Fixes Them

Quick Answer: Knee pain in active people most commonly presents as IT band syndrome (lateral knee pain) or patellofemoral pain syndrome — "runner's knee" (anterior knee pain). Both are biomechanical problems driven by hip weakness, muscle imbalances, and movement faults — not structural damage to the knee itself. At Marques Therapy, 88 Southwark Bridge Rd, London SE1, Sosthenes Marques performs a clinical biomechanical assessment to identify the exact driver of knee pain and delivers a targeted treatment and rehabilitation programme that resolves the problem — not just the symptom.

Knee pain is the single most common reason London runners stop running. Whether it builds gradually over weeks of increasing mileage, appears suddenly mid-run, or lingers as a background ache that progressively worsens — it tends to get managed with rest, compression, and hope, rather than properly diagnosed and treated.

The result is a pattern familiar to any active Londoner: rest until the pain goes away, return to training, knee pain within a fortnight, rest again. The knee never quite gets better. Training never quite gets back to where it was.

This article covers the two most common presentations of activity-related knee pain in London — IT band syndrome and patellofemoral pain — what causes them, why standard approaches fail, and what a clinical approach actually involves.

IT Band Syndrome: The Lateral Knee Pain That Stops Runners Mid-Route

IT band syndrome (ITBS) is the most common overuse knee injury in runners, and one of the most consistently misunderstood. It produces a sharp, burning pain on the outer (lateral) side of the knee that typically begins after a consistent distance run — often described as a "wall" where the knee becomes suddenly painful regardless of how it felt at the start of the run.

What the IT band actually is: The iliotibial band is a thick band of connective tissue running from the hip (iliac crest) down the outside of the thigh to the tibia. It is not a muscle — it cannot be "stretched" in any meaningful sense, and foam rolling it does not address the cause of IT band pain. This is why the foam roller provides temporary relief at best.

What actually causes ITBS: The pain in IT band syndrome comes from compression of the lateral knee fat pad as the band passes over the lateral femoral condyle during the knee flexion-extension cycle of running. This compression is driven by altered movement mechanics — specifically, excessive hip adduction and internal rotation during the stance phase of running, which tightens the band and increases the compression force.

The cause of this movement fault is almost always hip abductor weakness — particularly the gluteus medius and TFL — combined with tightened hip flexors and a running gait that allows the knee to track medially under load. Strengthening the hip, correcting the gait, and addressing the tissues maintaining the dysfunction resolves ITBS reliably when the approach is specific.

Foam rolling the IT band, stretching the outside of the thigh, and resting until the pain goes away does not address any of these factors. The runner returns, the same mechanics are present, and the compression returns with them.

Patellofemoral Pain Syndrome (Runner's Knee): The Ache Behind the Kneecap

Patellofemoral pain syndrome (PFPS) is characterised by pain behind or around the kneecap — typically provoked by running, squatting, descending stairs, or sitting with the knee bent for extended periods (the "cinema sign"). It is one of the most common complaints in both recreational runners and gym-goers, and one of the most poorly managed.

What causes it: The patella (kneecap) moves within a groove at the front of the femur as the knee bends and straightens. It is guided in this groove by the balance of forces pulling on it from the quadriceps muscles. When this balance is disturbed — most commonly by weakness in the VMO (the inner quadriceps muscle) combined with tightness in the lateral retinaculum — the patella tracks laterally and compresses against the lateral femoral condyle. This produces the characteristic anterior knee pain.

Contributing factors include hip abductor weakness (causing the femur to rotate inward and change the tracking angle), foot pronation (causing the shin to rotate inward under the knee), and quadriceps tightness (increasing patellofemoral contact pressure throughout the range of movement).

PFPS is not a structural problem in the vast majority of cases. There is no cartilage damage, no joint degeneration, no injury to treat. It is a movement quality problem — and it responds directly to treatment that addresses the movement quality.

What Clinical Assessment Reveals About Knee Pain

At Marques Therapy, assessment of knee pain in an active person involves:

Movement screening: Single-leg squat analysis reveals the pattern of hip control, knee tracking, and foot position that is loading the knee abnormally. The findings from this single test frequently explain the entire pain presentation.

Hip strength testing: Manual muscle testing of the gluteus medius, hip abductors, and external rotators identifies the specific strength deficits driving the movement fault.

Patellar tracking assessment: Direct palpation and observation of patellar movement through range identifies lateral tracking, tilt, and retinacular tightness.

Tissue quality assessment: The IT band, quadriceps, hamstrings, calf, and TFL are assessed for trigger points and tissue restriction that are contributing to abnormal tension patterns around the knee.

Gait and running assessment where appropriate: For runners with persistent ITBS or PFPS, specific gait analysis identifies the running mechanics that are perpetuating the problem.

Treatment at Marques Therapy for Knee Pain

Sports massage and soft tissue therapy: Targeted manual work to the quadriceps, IT band complex (TFL, gluteus maximus, lateral retinaculum), hamstrings, and calf — releasing the tension patterns that alter patellar tracking and IT band compression. This is not generalised leg massage; it is specific work matched to the clinical findings.

Dry needling: For trigger points in the TFL, gluteus medius, and vastus lateralis that are maintaining abnormal tension in the structures around the knee. Dry needling produces faster and more complete release of established trigger points than manual therapy alone — producing immediate changes in patellar tracking and lateral knee compression.

Hip and knee rehabilitation: Specific exercises to address the identified strength deficits — primarily hip abductor, external rotator, and VMO strengthening — with precise technique coaching to ensure the correct muscles are being loaded. Without this component, manual therapy produces temporary improvement only.

Shockwave therapy: For cases where tendinopathy at the patellar tendon or iliotibial insertion is a component of the presentation — shockwave therapy accelerates tendon tissue remodelling in the same way as for Achilles tendinopathy.

Running gait modification: Where gait analysis identifies a specific fault — typically excessive hip drop, crossover stride, or overstriding — targeted cues and drills to modify the pattern are introduced progressively, alongside the strengthening work that makes those changes mechanically sustainable.

Serving London's Running Community From SE1

Marques Therapy is located at 88 Southwark Bridge Rd — directly on the route many SE London runners use to access the Embankment, Bankside, Borough, and Bermondsey paths. Whether you run along the Thames from London Bridge, through Southwark Park, or across Tower Bridge to the City — we understand the routes, the demands, and the injury patterns that go with running in this part of London.

We also serve clients from Elephant & Castle, Waterloo, Canary Wharf, and the City — the communities where most of London's active working professionals are based.

Frequently Asked Questions

Q: I've been told I have "wear and tear" in my knee from an X-ray. Is that why it hurts? A: Degenerative changes on imaging are extremely common in active adults and are frequently found in people with no knee pain whatsoever. The correlation between imaging findings and pain is poor in the absence of significant joint space loss or structural damage. Most activity-related knee pain in people under 55 is biomechanical, not degenerative — and responds well to clinical treatment regardless of imaging findings.

Q: Should I wear a knee support or brace? A: Bracing can reduce pain during activity and may be useful as a short-term management tool. It does not address the cause of the problem. A brace that reduces patellofemoral compression, for example, works by altering patellar tracking mechanics externally — the same result that VMO strengthening and lateral release achieves internally, permanently.

Q: Can I train through IT band syndrome? A: Running through established ITBS typically worsens the inflammatory component and delays recovery. Modified training — reduced volume, reduced pace, avoidance of hills and cambered surfaces — is usually sustainable while the underlying biomechanical drivers are addressed. Cycling and swimming are generally well-tolerated alternatives for maintaining fitness during the rehabilitation period.

Q: I've had knee pain for two years. Is it too late to fix it? A: No. Long-standing knee pain typically means the movement dysfunction has been present longer and the associated muscle inhibition is more established — which means the rehabilitation programme requires more sessions and more time. But the underlying mechanics are still correctable, and resolution of symptoms is achievable in the vast majority of cases.

Q: How do I book? A: Via WhatsApp: wa.me/+447746252075. Or book online at marquestherapy.com.

Book Your Knee Assessment in London SE1

If knee pain is limiting your running, your training, or your movement — a clinical assessment is the first step toward getting back to what you do.

Marques Therapy 88 Southwark Bridge Rd, London SE1 0EX 5 minutes from London Bridge and Borough stations | Near Borough Market Serving SE1, Bermondsey, Southwark, Waterloo, Elephant & Castle, and the City of London

 WhatsApp: wa.me/+447746252075  marquestherapy.com/sports-therapy

Sosthenes Marques — Sports Therapist & Biomechanics Specialist | 20+ years of experience | London SE1