Role of Shock Wave Therapy for Plantar Fasciitis: What We Use and When

Intro and the study in plain English

Heel pain from plantar fasciitis is one of the common problems we see on the Central Coast, from runners training on the beach to kids coming off school sport. A recent randomised trial looked at extracorporeal shock wave therapy, or ESWT, and compared it to conventional conservative care. The study found larger reductions in pain and better foot function with ESWT at 4, 12 and 24 weeks. We will explain where ESWT sits in a practical treatment plan, who it helps, and what we do in clinic alongside it.

What we see

Most patients describe sharp pain under the heel with the first few steps in the morning or after sitting. Running heel pain usually flares with increased mileage, hill work or faster intervals. On exam we commonly find a very focal tender spot at the medial calcaneal tubercle, tight calves or reduced ankle dorsiflexion, and poor load tolerance on single-leg heel raise. Parents bring kids with similar symptoms after soccer or netball; the pattern differs in growing adolescents but the symptom of first-step pain is similar.

Why it's happening

Plantar fasciitis is not inflammation only. In many people it is a load problem: the plantar fascia is being overloaded relative to its capacity. That can come from training spikes, poor calf strength, prolonged standing on hard surfaces, or footwear that lets the arch collapse. Altered gait and higher pressures under the heel increase local tissue stress. Over months the fascia can become thickened and painful at its origin. Pain is a protective response to excessive or repeated loading, not a random fault.

What we test in clinic

We look at pain location and behaviour, ankle range, calf and intrinsic foot muscle strength, and ability to tolerate progressive loading. Simple clinical tests we use include palpation of the fascia origin, single-leg heel raise, and a windlass test. If we need objective data we will use pressure analysis or gait assessment to see loading patterns, and strength testing if available to quantify deficits. Ultrasound can be helpful when diagnosis is uncertain or to explain extent of thickening, but most decisions are clinical.

What actually changes it

Resting for long periods is not the answer. What changes load tolerance is graded, progressive loading and targeted strengthening of the calf and foot intrinsics, coupled with sensible load management. We change running volume and intensity rather than stopping running entirely. Footwear and temporary taping or orthoses redistribute pressure and reduce painful loading while strength improves. Short courses of anti-inflammatory pain relief can help with exercise participation. Corticosteroid injections can give quick relief for some patients but carry risks and do not rebuild load tolerance.

where ESWT fits

ESWT stimulates a biological response in the painful tissue that seems to reduce pain and improve function for many people. The trial showed VAS pain scores fell markedly in the ESWT group and foot function improved more than with conventional care at 4, 12 and 24 weeks. That matches what we see: ESWT is most useful when plantar fasciitis is persistent despite basic measures, or when people need a treatment to reduce pain enough to tolerate progressive loading.

Practicalities and expectations

Candidates: adults with persistent plantar heel pain despite 6 to 12 weeks of targeted loading and footwear modification, and those who need quicker improvement to return to training. We are cautious with active infection, uncontrolled bleeding disorders, and pregnancy. ESWT is not a first step for children with apophyseal pain, where the approach is different.

What happens during treatment: clinics vary. Some protocols use a small number of sessions spread over weeks. Pain can occur during or immediately after treatment and local bruising or soreness is common. Patients usually need to continue or start a progressive strengthening and load plan after ESWT; the treatment is not a stand-alone cure.

Outcomes you can expect: the trial reported large drops in pain and improved function out to 24 weeks. In clinic we explain that relief often comes over weeks, not instantly, and that maintaining improvements depends on load progression and strengthening.

How we combine ESWT with rehab

In our practice we do not offer ESWT alone. If we recommend it, we will pair it with a structured calf and intrinsic foot strengthening program, gait and running load advice, and temporary measures such as orthotic support or taping when needed. We reassess load tolerance and strength during follow up and adjust the plan. For runners we phase back mileage and speed work rather than return to full training at once.

What people get wrong

Expecting immediate resolution from shockwave without changing load. Thinking imaging is needed before any treatment in straightforward cases. Using ESWT as a first-line fix when a simple strengthening programme and footwear change would have sufficed. Relying only on injections without addressing the mechanical cause.

When to get help

If heel pain persists beyond a few weeks despite sensible load changes and calf-strength work, or if pain is severe enough to stop sport or school activities, see a clinician. If the pain follows a sudden traumatic event or is associated with numbness, widespread swelling or systemic symptoms, seek earlier review.

Notes for Central Coast patients

We see a lot of runners and weekend athletes from across the Central Coast. When plantar heel pain starts, early assessment of load and simple strengthening often keeps people moving. When conservative measures fail or faster improvement is needed, ESWT is an option we use alongside structured rehab, not instead of it.