Focal Shockwave vs Radial Shockwave Therapy – What’s the Difference and Which Helps Plantar Fasciitis?

The first step out of bed. That is the moment. Your heel touches the floor and there it is, the sharp, stabbing pain right under your foot. Some mornings it fades in a few minutes. Some mornings it hangs around all day. And if you have been dealing with this for months, you have probably read enough about plantar fasciitis to be seriously considering shockwave therapy.

Then you start looking into it and there is a wrinkle. There are two kinds. Focal shockwave, also called focused shockwave. Radial shockwave, also called radial pressure wave. Both are marketed as shockwave therapy. Both are used for plantar fasciitis. Clinics tend to offer one, the other, or both.

This article is the plain version. What actually separates them. What the research says about how each performs for heel pain. And how we choose between them, or combine them, at Unpain Clinic in Edmonton.

KEY TAKEAWAYS

• Focal (focused) shockwave and radial shockwave are two different technologies. Focal produces high-energy acoustic waves that converge at a specific depth in the tissue. Radial produces lower-energy pressure waves that spread out from the applicator and lose intensity as they travel deeper.
• Both can help plantar fasciitis. Both are supported by clinical research. The choice is not "which is better in every case" but "which is right for this presentation."
• The Chang network meta-analysis of 12 randomised trials (1,431 patients) found that medium and high-intensity focused shockwave produced reliable pain reduction and success rates for plantar fasciitis. Radial shockwave was described as an appropriate alternative, with the network analysis assigning it a high probability of being the best option, though with wide confidence intervals.
• The Clinical Practice Guideline for plantar heel pain from the Journal of Orthopaedic and Sports Physical Therapy recommends shockwave therapy as an evidence-supported intervention for heel pain that has not responded to first-line care such as stretching, orthotic support, and load management.
• Shockwave therapy is not a cure and is not appropriate for every heel pain patient. It works best as one part of a plan that also includes stretching, strengthening, and load management. A proper assessment is what determines whether shockwave belongs in your case, and which type is the right fit.

WHAT IS THE ACTUAL DIFFERENCE BETWEEN FOCAL AND RADIAL SHOCKWAVE?

They are two different pieces of equipment doing two different things, and marketing has done us all a disservice by calling them the same name.

• Focal shockwave (also called focused shockwave, or "true" extracorporeal shockwave therapy) uses a device that produces high-energy acoustic waves and focuses them at a specific point at depth. Think of the way a magnifying glass concentrates sunlight to a single point on a leaf. The waves generated at the surface of the applicator travel into the tissue and converge, meaning the highest energy is delivered at a chosen depth, not at the skin. The peak pressures produced by focal devices are very high (on the order of tens of megapascals), and the effect is precise. This is the technology originally developed for breaking up kidney stones, later adapted for musculoskeletal use once it became clear that the same waves also stimulated tissue repair.
• Radial shockwave (more accurately called radial pressure wave) is a different mechanism. A projectile is fired at high speed inside the applicator and strikes a metal plate. The energy transfers into the tissue as a pressure wave that starts at the applicator surface and spreads outward and downward. The highest energy is at the skin, and the wave loses intensity as it travels deeper. Peak pressures are much lower than focused shockwave, and the coverage is broader. This is not, strictly speaking, a shockwave in the physics sense, but in clinical practice the two are grouped together.

The practical differences that matter clinically come down to depth, precision, and intensity. Focused shockwave reaches deeper structures with higher energy at a chosen focal zone. Radial shockwave treats a broader, more superficial area at lower intensity. Focused feels like a strong knock or thump at depth. Radial feels more like a fast, jackhammer-style tapping on the surface.

Neither one is universally "better." They are different tools for different jobs, and a good clinician chooses based on what the tissue actually needs.

A QUICK REFRESHER ON WHAT PLANTAR FASCIITIS ACTUALLY IS

The plantar fascia is a thick band of connective tissue that runs along the bottom of your foot, from the heel bone to the base of the toes. It supports the arch and takes load with every step you take.

Plantar fasciitis (which is more accurately called plantar fasciopathy, because the process is more degenerative than actively inflammatory once it becomes chronic) develops when the fascia is repeatedly loaded past its capacity to recover. This can happen because of a jump in activity (a new job on your feet, a new running program, a training block that ramped too fast), a change in footwear, weight gain, tight calves that steal ankle motion, or the everyday load of standing on hard floors all day.

The classic symptom is the first-step pain in the morning, or after sitting for a while. It fades once you have been walking for a few minutes because the tissue warms up. Then it comes back at the end of the day when the fascia has been loaded past its capacity again.

For a more complete walk-through of causes, first-line treatments, and self-care for plantar fasciitis, our plantar fasciitis treatment page is the deeper dive.

WHAT DOES THE RESEARCH SAY ABOUT FOCAL VS RADIAL FOR PLANTAR FASCIITIS?

The evidence base here is actually pretty good, and it is more nuanced than the marketing.

Start with the direct comparison. The Chang network meta-analysis, published in Archives of Physical Medicine and Rehabilitation, pooled 12 randomised controlled trials of shockwave for plantar fasciitis, including 1,431 patients across the studies. The analysis separated focused shockwave into low, medium, and high-intensity groups, and compared each of these to radial shockwave and to sham (placebo) treatment. The key findings:

Medium and high-intensity focused shockwave produced reliable improvements in pain and treatment success rates compared to placebo. This is the strongest signal in the analysis and it is the finding most often cited in guidelines. Low-intensity focused shockwave and radial shockwave both showed positive point estimates but with wide confidence intervals, meaning the effect was less certain in the data available at the time. In the network meta-analysis (which allows indirect comparisons across studies), radial shockwave came out with the highest probability of being the best therapy, though the authors were careful to note that the wide confidence intervals qualify that conclusion. Their overall recommendation was that focused shockwave should be set at the highest tolerable energy in the medium-intensity range for plantar fasciitis, and that radial shockwave is a reasonable alternative, particularly given its lower cost.

Broader meta-analyses have reached similar conclusions. The Sun meta-analysis in Medicine pooled multiple randomised trials of shockwave (both focused and radial) for chronic plantar fasciitis and found that shockwave produced meaningful pain reduction and functional improvement compared to sham, with a favourable safety profile. The de la Corte-Rodriguez meta-analysis compared shockwave to corticosteroid injection and looked at focused vs radial as a secondary analysis. Both types performed well against corticosteroid at longer follow-up.

The JOSPT Clinical Practice Guideline for plantar heel pain, which is the most authoritative reference currently available for how to sequence heel pain care, recommends starting with education, load management, stretching, and orthotic support. Shockwave therapy is included as an evidence-supported intervention for cases that have not responded to first-line care. The guideline does not declare a winner between focused and radial.

So what does this actually mean if you are choosing between them?

First, both can help. The evidence supports both. If a clinic only has radial shockwave and you have plantar fasciitis, that is not automatically the wrong choice. Second, the strongest and most consistent evidence for focused shockwave is at medium-to-high intensity settings applied to the plantar fascia at the heel. Third, response varies from patient to patient, and the biggest predictors of a good outcome are proper assessment, correct patient selection, appropriate energy settings, and integration with an active rehabilitation program. Fourth, the "which one is better" question is often less important than the "is this actually the right treatment for what is going on" question, which is what a proper assessment answers.

WHEN EACH TYPE IS THE RIGHT TOOL

The choice is less about "focal is better than radial" and more about matching the tool to the tissue and the presentation.

• Focused shockwave tends to be the better fit when the target is deeper (for example, the plantar fascia's attachment at the heel bone, or the deeper hip and hamstring tendons), when the tissue has been symptomatic for a long time and has stalled, when previous conservative care has not worked, or when a precise application to a specific structure is what the case calls for. It is the treatment with the stronger and more consistent evidence base for stubborn, well-localized soft-tissue problems.
• Radial shockwave tends to be the better fit when the target is broader and more superficial, such as a whole calf that is loaded up, when there is a lot of surrounding muscle tension contributing to the picture, and when a broader tissue coverage is what the case needs. It is useful as a companion to focused treatment when the fascia itself needs the deeper, more precise stimulus but the calf and foot muscles around it also need to release.

In many plantar fasciitis cases, the honest answer is "some of both." The plantar fascia at the heel gets focused shockwave therapy, and the calf and arch get radial shockwave therapy to release surrounding tension. Whether we go focused-only, radial-only, or a combination depends on what the assessment finds.

HOW TREATMENT FOR PLANTAR FASCIITIS WORKS AT UNPAIN CLINIC

Your first appointment is a 60-minute physiotherapy assessment. The goal is not to blast your heel on day one. The goal is to figure out what has been keeping your heel from healing.

That means a full history (how the pain started, what aggravates it, what calms it, what you have already tried, and what you actually want to get back to), orthopedic testing of the foot, ankle, and lower limb, palpation to identify the specific tender structures, and a movement analysis of how you walk and load through the day. Part of this is screening for anything that would need a physician referral first, such as nerve entrapment, stress fracture, or a systemic condition presenting as heel pain.

At the end of the assessment, you get a clear explanation of what is driving your pain, a personalized plan, and a straight answer about whether shockwave belongs in your case. If it does, we will tell you which type or combination we recommend and why.

Treatment sessions are built around a few tools working together. When focused shockwave is indicated, it is applied to the plantar fascia at the heel and along the arch. A typical course is six to eight sessions, once or twice weekly, with re-assessment along the way. When radial shockwave is added, it is used on the calf, the plantar surface of the foot, and any surrounding areas that are loaded up. The sensation of focused shockwave is a strong, deep tapping. The sensation of radial is a fast surface tapping, more like a firm percussive massage. The intensity is adjustable during each session, and it stops the moment we pause the device. In some cases we pair shockwave with EMTT in the same visit for broader tissue coverage.

Around the shockwave, the plan includes stretching (specifically a plantar-fascia-specific stretch that has been shown to help chronic heel pain more than a generic Achilles stretch), a progressive strengthening program for the calf and foot, manual therapy where the ankle is stiff or the calf is loaded up, and load management education for how you walk, stand, and train in the weeks that follow.

WHAT YOU CAN DO AT HOME

This is general education, not individual medical advice, and results vary.

Do a plantar-fascia-specific stretch first thing in the morning before you put weight on the foot. Sit on the edge of the bed, cross the affected foot over the opposite knee, grip your toes, and gently pull them back toward your shin until you feel a stretch along the arch. Hold about ten seconds, repeat ten times, and do it two or three times a day. This stretch has better evidence for chronic heel pain than a standard calf stretch.

Add progressive calf and foot strengthening once acute pain has settled. Single-leg heel raises done slowly on a step, with a towel rolled under the toes to keep the fascia stretched, have the best evidence for building resilience in the tissue. Start with two sets of ten and progress gradually. Sharp pain during the exercise, or pain that lingers for more than 24 hours afterward, means the load was too much.

Look at your shoes. If your daily shoes are more than a year old with visible wear at the heel, a supportive pair of runners with a decent arch and heel counter will help. Avoid walking around the house barefoot on hard floors while you are flaring.

Adjust the load. If your steps per day, running mileage, or standing hours jumped in the weeks before the pain started, ease those back to where they were and build up gradually.

Stay active in ways that do not flare it. Cycling, swimming, and rowing let you keep your fitness while the fascia settles. Walking in supportive shoes on softer surfaces is usually fine in moderation.

Some symptoms are not "wait and see" symptoms. Get medical attention if you develop sudden severe heel pain after a specific injury or fall, numbness or tingling in the foot, fever with heel pain, unexplained weight loss with heel pain, or pain that gets worse at rest without weight-bearing. Those can indicate conditions that need a physician assessment.

FREQUENTLY ASKED QUESTIONS

Which is better for plantar fasciitis: focal or radial shockwave?

Both types can help plantar fasciitis, and the research supports both. Focused shockwave at medium to high intensity has the most consistent evidence for reducing heel pain and improving function. Radial shockwave also has evidence supporting its use for plantar fasciitis and is often more accessible. The honest answer is that "which one is better" depends on your specific presentation. What matters most is a proper assessment to determine whether shockwave is the right treatment for your case, and if so, which type or combination fits best.

How deep does focal shockwave go compared to radial?

Focused shockwave converges at a chosen depth in the tissue, and the depth of that focal zone can be adjusted by the clinician depending on the device settings and standoff distance. Radial shockwave delivers its highest energy at the skin surface and loses intensity as the wave travels deeper. In practice, this means focused shockwave is the better choice when the target structure is deeper, and radial is a good choice when the target is more superficial or broader.

Does focal shockwave hurt more than radial?

The two feel different. Focused shockwave feels like a strong, deep tapping or knocking sensation at the focal zone in the tissue. Radial shockwave feels like a fast, firm surface tapping, more like a percussive massage. Most patients tolerate both well. The intensity is adjustable during each session, and it stops the moment the device is off. Mild soreness for a day or two after a session is common with either type and typically feels like post-workout tenderness.

How many shockwave sessions will I need for plantar fasciitis?

A common plan is six to eight weekly sessions, with re-assessment along the way. Some patients notice early improvement after the first two or three sessions. Most of the change tends to build in the four to eight weeks after the last session as the tissue continues to remodel. The specific number depends on how long you have had the pain, what else has been tried, and how you are responding to treatment.

Is shockwave therapy safe?

Shockwave therapy has a favourable safety profile in the research and in clinical practice. Common side effects are mild and short-lived: some soreness at the treatment area for a day or two, occasional bruising, and sometimes a brief flare of pain before improvement. Contraindications include treatment over a pregnancy, active infection, active blood clots, significant bleeding disorders, and active malignancy in the treatment area. The physiotherapist screens for these during your assessment.

Can I still walk and exercise while I am getting shockwave therapy?

Yes, and in most cases you should. Complete rest tends to make plantar fasciitis worse, not better, because the tissue needs graded load to rebuild. What matters is choosing activities and load levels that do not flare the pain. During a shockwave course, we typically encourage walking in supportive shoes, cycling, swimming, and continued strengthening. Running is often modified or paused during the treatment window and reintroduced gradually as the pain improves.

When should I stop trying home remedies and book an assessment?

If your heel pain has lasted more than a few weeks despite supportive shoes, the fascia-specific stretch, and reduced load, or if it keeps returning every time you try to increase activity, that is the point where a proper assessment is likely to save you time. Plantar fasciitis is one of the more identifiable conditions in physiotherapy when the assessment is done properly, and the right plan depends on knowing exactly what is driving the pain.

PATIENT TESTIMONIAL

“Over the years shockwave has exceptionally improved various physical issues I suffered from. The first time I met Uran he got me walking again with 1 treatment after 5 months of suffering from plantar fasciatis. He then helped me with back, shoulder and neck pains that were the source of headaches. He helped me avoid a big surgery that would have caused other serious issues later on and after suddenly losing my ability to walk due to severe back pain, Uran found the source nobody else could find and got me walking again! I now swear by shockwave therapy!”- Nathalie Lacroix

ABOUT THE AUTHOR

Written by Uran Berisha, PT, RMT, Founder of Unpain Clinic and Medical Shockwave Institute in Edmonton. Uran is a physiotherapist and an International Educator in Shockwave Therapy, with a clinical focus on chronic musculoskeletal pain that has not responded to first-line care. Medically reviewed by Uran Berisha, PT, RMT.

BOOK YOUR INITIAL ASSESSMENT

If plantar fasciitis has been holding you back and you want a clear answer on whether shockwave therapy fits your case (and if so, which type), the next step is a 60-minute physiotherapy assessment at Unpain Clinic Edmonton. The assessment identifies what is driving your pain, screens for anything that would need a physician referral first, and lets you make an informed decision about the next step. No referral is required to see a physiotherapist. Book your initial assessment with Unpain Clinic.

WHAT WE DO NOT OFFER

We do not perform cortisone injections, prescribe medications, or perform surgery. We do not sell or endorse specific orthotic or shoe brands. If your presentation suggests a condition outside our scope, such as nerve entrapment, stress fracture, systemic inflammatory disease, or anything requiring urgent medical evaluation, we will tell you plainly and help you find the right next step.

REFERENCES

1. Chang KV, Chen SY, Chen WS, Tu YK, Chien KL. Comparative effectiveness of focused shock wave therapy of different intensity levels and radial shock wave therapy for treating plantar fasciitis: a systematic review and network meta-analysis. Archives of Physical Medicine and Rehabilitation. 2012;93(7):1259-1268. https://www.sciencedirect.com/science/article/abs/pii/S0003999312001608
2. de la Corte-Rodriguez H, Roman-Belmonte JM, Rodriguez-Damiani BA, Vazquez-Sasot A, Sanz-Cardin O, Rodriguez-Merchan EC. Efficacy of extracorporeal shockwave therapy, compared to corticosteroid injections, on pain, plantar fascia thickness and foot function in patients with plantar fasciitis: A systematic review and meta-analysis. Foot and Ankle Surgery. 2024. PMID: 38738305. https://pubmed.ncbi.nlm.nih.gov/38738305/
3. Koc TA, Bise CG, Neville C, Carreira D, Martin RL, McDonough CM. Heel Pain - Plantar Fasciitis: Revision 2023. Journal of Orthopaedic & Sports Physical Therapy. 2023;53(12):CPG1-CPG39. doi:10.2519/jospt.2023.0303. PMID: 38037331. https://pubmed.ncbi.nlm.nih.gov/38037331/
4. Sun J, Gao F, Wang Y, Sun W, Jiang B, Li Z. Extracorporeal shock wave therapy is effective in treating chronic plantar fasciitis: a meta-analysis of RCTs. Medicine (Baltimore). 2017;96(15):e6621. doi:10.1097/MD.0000000000006621. PMID: 28403111. PMCID: PMC5403108. https://pubmed.ncbi.nlm.nih.gov/28403111/