Plantar Fasciitis: Why Your Physio Should Be Your First Call

You woke up, swung your legs out of bed, and the first step hit like a knife into your heel. By the time you'd shuffled to the kitchen the pain eased off, but it came back after lunch when you stood up from your desk. Now it has been six weeks. You've tried rolling a frozen water bottle, stretching the calf morning and night, and you've started wondering whether you need orthotics.

Plantar fasciitis affects roughly 10% of adults at some point in their lives.¹ It is the most common cause of heel pain we see in the clinic. And it is the condition where the gap between what people try and what actually works is among the widest in musculoskeletal practice.

Most heel pain sufferers reach for passive solutions: rest, ice, a soft soled shoe, a chemist orthotic, maybe a cortisone injection if it drags on. Some go straight for custom orthotics. The evidence tells a different story. Plantar fasciitis is fundamentally a load tolerance problem, and the highest quality trials in the last decade have shifted the treatment model from passive support to active loading. That shift is where physiotherapy comes into its own.

What plantar fasciitis actually is

The name is misleading. The "-itis" suffix implies inflammation, but biopsy and imaging studies show plantar fasciitis is a degenerative tendinopathy-like condition, not an inflammatory one.² Researchers increasingly call it plantar heel pain or plantar fasciopathy. The plantar fascia is a thick fibrous band running from the heel bone to the base of the toes. Under repeated load it gets irritated, develops microscopic disorganisation, and becomes pain sensitive.

This matters because the treatment implications are completely different. If it were truly inflammatory, anti-inflammatory drugs and rest would be the answer. Because it is a load tolerance problem, the answer is to gradually rebuild that load tolerance, much like rehab for an Achilles tendinopathy.

The most consistently identified risk factors in the literature are: high BMI, prolonged standing, reduced ankle dorsiflexion range, and sudden increases in load.^3,4 Foot posture matters in some cases, but plenty of people with flat feet never develop plantar fasciitis, and plenty of people with neutral arches do. If you understand plantar fasciitis as a tissue that has lost the capacity to handle the demands placed on it, the path forward becomes clear: temporarily reduce demand, gradually rebuild capacity, and address the upstream factors that loaded the tissue inappropriately in the first place.

Rest and stretch: when it works, and when it doesn't

The most common playbook for treating plantar fasciitis goes something like this. Rest from running or aggravating activity. Stretch the calf. Roll the foot on a ball or frozen bottle. Buy supportive shoes or arch supports.

For standard, short term presentations this is often enough. Most acute episodes settle within a few weeks once the load comes down and basic mobility work is done consistently. If your plantar fasciitis is genuinely recent and not severe, the standard playbook has a reasonable chance of resolving it on its own.

Chronic, long term plantar fasciitis is a different problem. Once the fascia has been pain sensitive for months rather than weeks, the tissue has lost capacity — and capacity has to be actively rebuilt. Long term cases need a strengthening component, and not just the calf. The plantar fascia itself responds to direct loading. Tibialis posterior, the intrinsic foot muscles, and the gluteal muscles up the chain all need attention, because force travels down through the leg before it ever reaches the fascia. Even within the stretching world, plantar fascia specific stretching — where you bend the toes back to load the fascia directly — outperforms calf stretching alone.⁵ But stretching of any kind takes a back seat to progressive strength work for chronic cases.

The intervention that has repeatedly outperformed stretching in randomised trials is high load strength training. In Rathleff's landmark 2015 trial, patients who did a heavy slow calf raise protocol with the toes extended over a rolled towel — which preloads the plantar fascia — had significantly better function scores at three months than patients doing plantar fascia specific stretching alone.⁶ The strength group worked every second day. The differences emerged at 12 weeks and held up at 12 months. This protocol is now broadly considered standard care for chronic plantar heel pain, alongside education and load management.

What we actually look at in a plantar fasciitis assessment

The job is to identify why this particular person's plantar fascia stopped tolerating its load, then build a program that rebuilds capacity while removing the things that caused the breakdown. That assessment goes well beyond the foot.

Sullivan and colleagues (2015) found people with plantar heel pain had reduced hip abductor and external rotator strength compared to matched controls.⁷ Addressing the hip alongside the foot is not a fringe idea; it is mainstream best practice.

Orthoses — what the evidence actually says

This is where the conversation usually gets muddled. Patients arrive convinced they need custom orthotics, or convinced orthotics are a scam. The evidence sits in the middle, and it is clearer than the marketing on either side suggests.

Prefabricated (off the shelf) orthoses produce small to moderate short term reductions in pain compared to sham or no intervention. The benefit emerges quickly, often within a few weeks.^8,9

Custom orthoses, made from a cast or scan of your foot, are not consistently better than well chosen prefabricated devices for plantar fasciitis. Systematic reviews have found similar outcomes between the two over 12 months.^8,10 Custom orthoses typically cost $400 to $700. A well fitted prefabricated orthotic costs $40 to $90.

For most plantar fasciitis presentations, this means a properly fitted prefabricated orthotic, worn during aggravating activities and replaced every 12 to 18 months, gives you most of the benefit at a fraction of the cost. The exceptions exist: significant structural foot pathology, complex deformity, certain rheumatological conditions, or cases that have not responded to a prefabricated device may benefit from custom devices. That is a minority of cases.

The bigger point: orthoses are a passive intervention. They manage load while you build tissue capacity. They do not change what is happening at the foot, the hip, or in your training pattern. If orthoses are all you do, you are managing the symptom, not the cause. We use them when they are indicated, but we do not lead with them and we do not rely on them.

What an active treatment program actually looks like

A typical 8 to 12 week program runs roughly like this. The structure draws on the 2014 JOSPT clinical practice guideline for plantar heel pain,¹¹ with the Rathleff high load calf raise protocol⁶ at the core of the loading phase.

This is not quick. Plantar fasciitis is notoriously slow to fully resolve, and patients with longer duration symptoms recover more slowly. Realistic timelines are 8 to 12 weeks for substantial improvement, sometimes longer. But the trajectory is genuine resolution, not symptom suppression.

The physiotherapist's role through this is to titrate the loading. Push too hard and it flares. Push too soft and progress stalls. That balance is the actual work.

When physiotherapy should be your first call

Plantar fasciitis is one of those conditions where active rehabilitation is the strongest treatment lever available. It is a load tolerance problem at the foot, almost always with contributing factors up the chain, and the evidence supports a model of hands on assessment, progressive loading, and selective use of passive support.

That is the work physiotherapists do every day. Foot biomechanics, dynamic gait assessment, hip and pelvic strength, exercise prescription, progressive loading, manual therapy, taping, and orthotic recommendation are core scope. The advantage of starting here is that the most evidence supported components of treatment — the loading and the kinetic chain work — are at the centre of the consultation rather than at the periphery. A prefabricated orthotic is part of the toolkit, not the whole toolkit.

If you have had heel pain for more than a few weeks and rest and stretching have not shifted it, an assessment is the sensible next step. Bring your shoes, your training data if you run, and a sense of how the symptoms started. We will take it from there.

Daniel Ryan

Senior Physiotherapist · Founder, Move Physiotherapy & Fitness

Masters of Physiotherapy, University of South Australia. Founded Move Physiotherapy in 2018 across Beeliar, Booragoon and East Fremantle.