What Is Shockwave Therapy — And Why Are Athletes Obsessed With It?

If you've been dealing with a stubborn tendon injury, chronic heel pain, or something that just won't respond to rest and stretching, you've probably heard someone mention shockwave therapy. Maybe your running buddy swears by it. Maybe you've seen it pop up on Instagram. Either way, it's not a new gimmick — it's one of the most well-researched non-invasive treatment tools in sports medicine, and we use it here at Perform PT for good reason.

Here's the full breakdown: what it is, where it came from, and what the research actually says.

What Is Shockwave Therapy?

Shockwave therapy — formally called Extracorporeal Shockwave Therapy (ESWT) — delivers high-energy acoustic waves to targeted areas of the body through a handheld device pressed against the skin. Those sound waves stimulate your body's natural healing mechanisms by increasing blood flow, breaking down calcific deposits, remodeling scar tissue, and triggering cellular repair at the tissue level.

The word "extracorporeal" just means the waves are generated outside the body. No injections, no surgery, no downtime.

At the cellular level, shockwave therapy works through four distinct phases:

• Physical: Positive pressure stimulates energy absorption and transmission into damaged tissue

• Physicochemical: Triggers the release of ATP and activates cell signaling pathways

• Chemical: Alters ion channels in cell membranes and stimulates calcium mobilization

• Biological: Modulates angiogenesis (new blood vessel growth) and promotes healing of bone and soft tissue

Translation? It wakes up tissue that has essentially "given up" trying to heal on its own — which is exactly the problem with chronic tendinopathies.

A Brief History: From Kidney Stones to Hamstring Tendons

Shockwave therapy has a surprisingly long track record. Here's how it went from urology to your PT clinic.

1960s–70s: The Science Begins Researchers in Germany began investigating the effects of acoustic waves on biological tissue in the late 1960s. Early work focused on how concentrated sound energy could be used to disrupt dense structures inside the body without cutting through skin.

1980: The Kidney Stone Breakthrough The first clinical application of shockwave technology was in urology. In 1980, German researchers published the first documented use of extracorporeal shockwaves to non-surgically destroy kidney stones — a procedure now known as lithotripsy. It was a major breakthrough. Suddenly, a tool that had once required open surgery could be done with a machine and some gel.

Early 1980s–90s: Orthopedics Enters the Picture Researchers noticed something interesting: patients who received lithotripsy for kidney stones sometimes reported improvements in nearby bone and soft tissue conditions. This led to a wave of research into applying shockwave technology to orthopedic problems — delayed fracture healing, calcific tendinopathy, and musculoskeletal pain. By the early 1990s, clinical data was appearing in journals, and ESWT was establishing itself as a legitimate treatment modality in sports medicine and physical therapy.

1995: Consensus and Standardization A historical consensus meeting in 1995 set initial clinical parameters for musculoskeletal ESWT — things like energy intensity, session frequency, and which conditions were appropriate for treatment. These guidelines have since been revised significantly as the technology and research have evolved.

2000s–Present: Mainstream Sports Medicine Shockwave therapy expanded rapidly through European sports medicine and physical therapy practices before gaining traction in the United States. The FDA has cleared shockwave devices for plantar fasciitis and lateral epicondylitis (tennis elbow), and clinical use has since extended to Achilles tendinopathy, patellar tendinopathy, rotator cuff pathology, hamstring tendinopathy, and more. Today it's used by professional sports teams, elite athletic programs, and clinics like ours that specialize in keeping active people moving.

What Conditions Does It Treat?

At Perform PT, we use shockwave therapy as part of an integrated treatment approach for:

• Plantar fasciitis — chronic heel and arch pain

• Achilles tendinopathy — mid-body or insertional

• Patellar tendinopathy — jumper's knee

• Lateral epicondylitis — tennis elbow

• Rotator cuff tendinopathy — shoulder pain and dysfunction

• Hamstring tendinopathy — proximal or distal

• Calcific tendinitis — calcium deposits in soft tissue

• Myofascial trigger points — chronic muscle knots and referred pain patterns

It works especially well for conditions that haven't responded to rest, stretching, or more conservative care alone.

What Does the Research Say? Case Studies and Clinical Evidence

This is where things get interesting. Shockwave therapy isn't just popular — it has a serious body of research behind it.

Plantar Fasciitis in Runners

A prospective, randomized, placebo-controlled trial followed 45 running athletes with chronic plantar heel pain lasting more than 12 months. Athletes in the treatment group received three sessions of low-energy shockwave therapy, while a control group received sham treatment.

After six months, pain on first morning steps dropped from an average VAS score of 6.9 down to 2.1 in the shockwave group — a clinically significant reduction. The control group saw minimal improvement. Results held at the one-year follow-up.

In a separate long-term study on amateur runners, low-energy ESWT produced excellent or good results in 71% of cases, with improvements lasting through the 24-month follow-up period.

Achilles, Patellar, and Plantar Tendinopathy — A Systematic Review

A 2023 systematic review and meta-analysis published in Frontiers in Sports and Active Living evaluated the evidence for shockwave therapy across three of the most common athletic tendinopathies: patellar, Achilles, and plantar fasciitis. The review, which pulled from multiple medical databases and applied GRADE evidence standards, found shockwave therapy to be effective for pain reduction and functional improvement across all three conditions — supporting its role as a first-line treatment for tendinopathies that have failed initial conservative care.

Hamstring Tendinopathy in Professional Athletes

Italian researchers tested shockwave therapy on 40 professional athletes with chronic proximal hamstring tendinopathy (PHT) — one of the more stubborn tendon conditions in competitive sport. Athletes had experienced recurrent pain and tenderness for at least six months prior to treatment. Results showed meaningful reductions in pain and improved function, supporting shockwave therapy as a viable option for high-level athletes dealing with this notoriously difficult injury.

Chronic Plantar Fasciitis: Function and Return to Activity

A prospective case series followed 35 patients with chronic plantar fasciitis through a course of ESWT combined with a graded rehabilitation program. Patients demonstrated significant improvement in pain severity and physical function scores, with better rates of return to daily activity and work compared to other conservative treatment modalities.

Combined ESWT + PRP for Knee Tendinopathy

In a randomized trial of 33 athletes, those who received shockwave therapy combined with PRP injections experienced faster knee pain reduction at the one-month mark compared to PRP alone, with benefits sustained throughout the 12-month study period — and no adverse effects were reported.

How It Works at Perform PT

Shockwave therapy at Perform PT isn't a standalone treatment — it's one tool in a comprehensive, one-on-one plan designed around your specific movement patterns, sport demands, and goals.

Dr. Christie Hydar integrates ESWT with manual therapy, sport-specific loading protocols, and progressive rehab programming to address not just the painful tissue, but the mechanics and load patterns that got you there.

Most treatment courses involve 3–6 sessions, and many patients start noticing changes within the first few visits. The treatment itself takes only a few minutes per area and requires no recovery time — you can train around it.

Ready to Find Out If Shockwave Is Right for You?

If you've been managing a chronic injury that just won't quit, shockwave therapy might be exactly what your tissue needs to finally heal.

Book a session at performphysicaltherapy.org and go straight to scheduling tab above.

Perform PT San Diego — Out-of-network sports physical therapy for active adults and athletes.