What Is Shockwave Therapy and How Does It Work for Plantar Fasciitis?
If you’ve been dealing with heel pain for months — trying stretches, insoles, rest, anti-inflammatories — and it keeps coming back, shockwave therapy is likely to be one of the options you’ve started reading about. It’s increasingly well-known, but it’s also frequently misunderstood.
This post explains what radial shockwave therapy actually is, how it works at a tissue level, what the evidence says for plantar fasciitis specifically, and what treatment looks like at Yorkshire Foot Clinic. No jargon, no overselling — just a clear picture of whether it’s likely to be right for you.
What is plantar fasciitis?
Before explaining the treatment, it’s worth briefly explaining the condition — because how shockwave works only makes sense in the context of what’s actually happening in the tissue.
The plantar fascia is a thick band of connective tissue running along the sole of the foot from the heel bone to the base of the toes. Plantar fasciitis occurs when this tissue is repeatedly loaded beyond what it can tolerate, leading to micro-tears, degeneration, and pain — typically worst at the heel, and particularly severe with the first steps in the morning.
Crucially, in long-standing cases, the tissue isn’t just inflamed — it’s undergone degenerative change. This is called tendinosis or fasciopathy, and it’s why standard anti-inflammatory approaches often produce limited results in chronic presentations. You’re not dealing with acute inflammation anymore. You’re dealing with tissue that has changed structurally and isn’t healing properly.
This is precisely where shockwave therapy comes in.
What is radial shockwave therapy?
Radial shockwave therapy (RSWT) uses pneumatically generated acoustic pressure waves delivered through a handheld applicator placed against the skin over the treatment area. These pressure waves radiate outward through the tissue — hence ‘radial’ — producing mechanical stimulation at depth without breaking the skin.
It is not electrical stimulation, ultrasound, laser, or heat therapy. It is a distinct modality with a different mechanism of action and a different evidence base.
How it works at tissue level
The therapeutic effects of shockwave on degenerative tendon and fascial tissue are well documented. The primary mechanisms include:
Neovascularisation: shockwave stimulates the formation of new blood vessels in the treated area, improving local circulation and nutrient delivery to tissue that has become avascular and is failing to heal
Cellular stimulation: the mechanical stimulus activates tenocytes and fibroblasts — the cells responsible for collagen production and tissue repair — restarting a healing response that has stalled
Pain modulation: shockwave disrupts the transmission of pain signals by affecting substance P and other nociceptive mediators, producing analgesic effects that can be immediate and cumulative across a course of treatment
Calcification breakdown: where calcium deposits have formed in the tissue — common in chronic plantar fasciitis — shockwave can help disperse these, reducing the mechanical irritation they cause
In short: shockwave doesn’t mask pain or temporarily reduce inflammation. It stimulates the tissue to repair itself in a way that, in chronic degeneration, it is no longer doing on its own.
What does the evidence say?
Shockwave therapy for plantar fasciitis has a substantial and growing evidence base. Multiple systematic reviews and randomised controlled trials support its efficacy for chronic plantar fasciitis — specifically in cases that have failed to respond to conservative management.
Key findings from the literature:
Shockwave consistently outperforms placebo in trials for chronic plantar fasciitis, with clinically meaningful reductions in pain and improvements in function
Response rates in well-selected patients are reported at 60–80% across the evidence base
NICE has reviewed shockwave therapy for plantar fasciitis and considers it a treatment option with acceptable evidence of efficacy and safety
Results are durable — follow-up studies show maintained improvement at 12 months in the majority of responders
It is worth being honest about what the evidence also shows: shockwave is not universally effective, and results are better in some presentations than others. This is why patient selection and clinical assessment matter before proceeding.
Who is shockwave suitable for?
Shockwave therapy is most appropriate for:
Plantar fasciitis that has been present for three months or more
Cases that have not responded adequately to conservative management — stretching, footwear modification, insoles, physiotherapy
Patients who want to avoid corticosteroid injection or surgical intervention
Active patients or athletes who need to maintain some level of activity during treatment
It is not appropriate for:
Acute presentations — shockwave is a treatment for chronic, degenerative tissue change, not acute inflammation
Patients who are pregnant
Patients with active infection or open wounds over the treatment area
Patients with certain circulatory or nerve conditions affecting the foot — a full clinical history is taken before treatment
Children and adolescents with open growth plates
At Yorkshire Foot Clinic, shockwave is never offered without a prior biomechanical assessment. Understanding why the plantar fascia is being overloaded is as important as treating the tissue damage — without addressing the mechanical cause, the risk of recurrence remains.
What does treatment involve?
The session
A coupling gel is applied to the heel to ensure effective transmission of the pressure waves
The shockwave applicator is placed against the skin over the treatment area
Treatment typically lasts five to ten minutes per session
You will feel the pulses — the sensation is often described as a deep tapping or drumming. It can be intense over the most sensitive areas, but it is tolerable for the vast majority of patients
No anaesthetic is used — and avoiding it is deliberate, as patient feedback during treatment helps guide the application
The course of treatment
Shockwave is delivered as a course, typically three to five sessions spaced one week apart. This spacing allows the tissue to begin responding between sessions rather than receiving repeated stimulation before any healing has occurred.
Most patients notice some improvement after the second or third session. Full results develop over six to twelve weeks following the course as the tissue continues to remodel and repair.
After each session
You can walk out of the clinic and return to normal daily activity immediately
Avoid high-impact activity for 24–48 hours after each session
Some temporary increase in soreness after the first one or two sessions is normal — this typically settles within a day or two
Anti-inflammatory medication should be avoided in the 24 hours after treatment as it may blunt the tissue response that shockwave is designed to stimulate
Why shockwave works best alongside biomechanical treatment
Shockwave addresses the tissue damage — but it doesn’t address why the tissue was damaged in the first place. If the mechanical load that caused the plantar fascia to break down is still present after treatment, the risk of the problem returning is significant.
At Yorkshire Foot Clinic, shockwave is used as part of a broader treatment plan that includes biomechanical assessment and, where indicated, orthotic therapy and rehabilitation. The combination is more effective than either approach in isolation:
Shockwave restarts the tissue healing process and reduces pain
Biomechanical correction reduces the load on the plantar fascia, giving the healing tissue a better mechanical environment to recover in
Rehabilitation — progressive loading of the fascia — builds tissue capacity so it can tolerate normal activity without breaking down again
This is not a quick fix. It is a structured, evidence-based approach to a problem that has typically been present for months. Patients who engage with all three components consistently produce the best outcomes.
Book a heel pain assessment in Leeds
If you’ve had plantar fasciitis for more than three months and conservative treatment hasn’t resolved it, shockwave therapy may well be the next appropriate step. The right starting point is a proper assessment to confirm the diagnosis, understand the mechanical drivers, and put together a treatment plan that makes sense for you.
📍 Yorkshire Foot Clinic, Horsforth, Leeds
📅 Open Tuesdays and Thursdays
👉 Book online at yorkshirefootclinic.com
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