Shockwave Therapy with Eccentric Exercises

If you’re considering shockwave therapy for a tendon problem, there’s a question worth asking your provider: should I also be doing specific exercises? The research increasingly says yes – and the combination of extracorporeal shockwave therapy (ESWT) with eccentric loading exercises may produce better outcomes than either treatment alone.

This isn’t about general “stay active during treatment” advice. It’s about a specific, evidence-based pairing: mechanical tissue stimulation from ESWT combined with controlled tendon loading through eccentric exercises, targeting the same biological pathways from different angles.

Why the Combination Makes Biological Sense

To understand why ESWT and eccentric exercises work well together, it helps to understand what each treatment does at the tissue level.

Shockwave therapy delivers acoustic energy that creates controlled microtrauma, triggering an inflammatory healing cascade. This includes neovascularization (new blood vessel formation), growth factor release, and collagen synthesis. ESWT essentially restarts the healing process in tissue that has stalled in a degenerative state. For more on these mechanisms, see our article on how shockwave therapy stimulates healing.

Eccentric exercises – movements where the muscle lengthens under load (like slowly lowering your heel off a step) – provide a mechanical stimulus that guides how new collagen fibers organize. Tendon collagen needs to align along the direction of force to function properly. Eccentric loading provides that directional signal, promoting the replacement of disorganized, degenerative tissue with organized, functional collagen.

Together, ESWT provides the biological “kick-start” (new blood vessels, new collagen production), while eccentric exercises provide the mechanical “template” (collagen alignment and organization). One treatment builds the raw material; the other shapes it.

What the Research Shows

The most cited study supporting this combination approach comes from the Achilles tendinopathy literature:

Rompe et al. (2009) conducted a prospective, randomized trial comparing three treatment approaches for chronic midportion Achilles tendinopathy: (1) eccentric exercises alone, (2) radial shockwave therapy alone, and (3) eccentric exercises plus radial shockwave therapy. At 4-month follow-up, the combination group showed significantly better outcomes than either treatment alone. The combination group had an 82% success rate compared to 56% for eccentric exercises alone and 52% for shockwave therapy alone.

This study is notable because it demonstrates a synergistic effect – the combination was not just additive but produced an outcome greater than either component. The biological rationale aligns with this finding: ESWT and eccentric loading target complementary aspects of tendon healing.

Additional research supports the combination approach:

Notarnicola et al. (2012) evaluated ESWT combined with an exercise program for various chronic tendinopathies and found superior outcomes in the combination group compared to exercise alone, with improvements in both pain scores and functional measures.

Thijs et al. (2017) compared ESWT plus eccentric exercises to eccentric exercises alone for patellar tendinopathy and found faster and more pronounced improvement in the combination group, though the difference narrowed at longer follow-up periods.

Condition-Specific Exercise Protocols

The eccentric exercise program should be matched to the specific tendon condition. Here are the most commonly used protocols:

Achilles Tendinopathy: The Alfredson Protocol

The Alfredson protocol is the most extensively studied eccentric loading program for midportion Achilles tendinopathy:

• Exercise: Heel drops off a step, lowering slowly with the affected leg
• Dosing: 3 sets of 15 repetitions, twice daily (both with knee straight and knee slightly bent)
• Progression: Add weight (weighted backpack) when exercises become pain-free
• Duration: 12 weeks total
• Important caveat: The standard Alfredson protocol may aggravate insertional Achilles tendinopathy. Modified protocols using reduced range of motion (not dropping below the level of the step) are typically recommended for insertional cases. Our article on insertional vs. midportion Achilles tendinopathy covers these differences in detail.

Tennis Elbow: The Tyler Twist

For lateral epicondylitis:

• Equipment: FlexBar or similar flexible resistance bar
• Exercise: Twist the bar with the unaffected hand, then slowly untwist with the affected wrist in an eccentric wrist extension motion
• Dosing: 3 sets of 15 repetitions, once or twice daily
• Duration: 8-12 weeks

Patellar Tendinopathy: Single-Leg Decline Squats

For jumper’s knee:

• Exercise: Single-leg squat on a 25-degree decline board, lowering slowly
• Dosing: 3 sets of 15 repetitions, twice daily
• Progression: Add external weight as tolerable
• Duration: 12 weeks

Hip and Gluteal Tendinopathy

For conditions like hip bursitis and gluteal tendinopathy, eccentric exercises for the hip abductors can be incorporated:

• Exercises: Side-lying hip abduction lowering slowly, single-leg stance holds, lateral step-downs
• Dosing: 3 sets of 10-15 repetitions, daily
• Progression: Add ankle weights or resistance bands as tolerated
• Duration: 8-12 weeks

Plantar Fasciitis: Eccentric Calf Loading

For chronic heel pain, eccentric calf raises also benefit the plantar fascia due to the anatomical connection through the Achilles-calcaneal-plantar system:

• Exercise: Single-leg calf raise lowering slowly, with a towel roll under the toes to increase plantar fascia tension
• Dosing: 3 sets of 12 repetitions, every other day
• Progression: Increase from bilateral to unilateral, then add external load

Timing: How to Sequence ESWT and Exercises

Practical sequencing of the two treatments follows a general pattern:

1. Week 1: First ESWT session. Begin eccentric exercises at low load – the goal is to introduce the movement pattern without excessive stress on tissue that just received shockwave treatment.
2. Weeks 2-6: Weekly or biweekly ESWT sessions. Continue daily eccentric exercises, gradually increasing load as tolerated.
3. Weeks 7-12 (post-ESWT): Shockwave sessions are complete. Continue eccentric exercises at full dosing. This is the period when collagen remodeling is most active.
4. Weeks 12+: Transition from eccentric-only loading to a more comprehensive strengthening program that includes concentric, isometric, and functional exercises.

Most providers recommend performing eccentric exercises daily between ESWT sessions, with a brief rest on the day of treatment itself. The exercise component is not optional – it is a critical part of the treatment protocol.

Progressing Beyond Eccentrics: The Full Rehabilitation Continuum

Eccentric exercises are a starting point, not the endpoint. Current evidence supports a progressive loading model for tendinopathy rehabilitation:

1. Isometric holds (pain management phase) – sustained contractions at fixed joint angles to reduce pain and begin loading
2. Eccentric loading (tissue remodeling phase) – the primary rehab tool described above
3. Heavy slow resistance training (tissue strengthening phase) – slower eccentric/concentric movements with heavier loads
4. Plyometric and sport-specific loading (return to activity phase) – jumping, cutting, and activity-specific movements

ESWT fits best during phases 1 and 2, providing the biological stimulus while exercises provide the mechanical one. Patients who progress through all four phases tend to have the most durable outcomes.

Patient Compliance: The Make-or-Break Factor

The challenge with combination therapy is that it requires more effort from the patient than shockwave therapy alone. ESWT is a passive treatment (you show up, the provider does the work). Eccentric exercises require daily commitment, progressive loading, and tolerance of some discomfort.

Research consistently shows that patients who comply with the exercise component have better outcomes. Yet compliance rates for home exercise programs are notoriously low – some studies estimate only 50-60% of patients complete prescribed exercise programs as directed.

Strategies that help:

• Start simple. One exercise, one set, once daily – then build from there
• Pair with a habit. Do your eccentric exercises at the same time every day (after coffee, before bed)
• Track it. Use a simple log or app to record sessions completed
• Expect some discomfort. Eccentric exercises for tendinopathy are supposed to produce mild discomfort (3-4/10). Complete pain avoidance often means the load is too low
• Communicate with your provider. If pain levels spike above a 5/10, your loading needs adjustment – not abandonment

Providers who specialize in tendinopathy management can help design an exercise program appropriate for your condition and guide progressions over time.

The Bottom Line

The evidence increasingly supports combining shockwave therapy with eccentric exercises for chronic tendinopathies – particularly Achilles tendinopathy, patellar tendinopathy, and lateral epicondylitis. The combination leverages the biological healing stimulus of ESWT with the mechanical loading signal of eccentric exercise, producing outcomes that exceed either treatment alone. The exercise component requires daily commitment, but it is not a secondary add-on – it is a core part of the protocol. Ask your provider about integrating a condition-specific eccentric loading program alongside your shockwave therapy sessions.

Explore our condition guides to learn more about ESWT protocols that incorporate exercise-based rehabilitation.

References

1. Rompe JD, Furia J, Maffulli N. Eccentric loading versus eccentric loading plus shock-wave treatment for midportion Achilles tendinopathy: a randomized controlled trial. Am J Sports Med. 2009;37(3):463-470. PubMed

2. Notarnicola A, Moretti B. The biological effects of extracorporeal shock wave therapy (ESWT) on tendon tissue. Muscles Ligaments Tendons J. 2012;2(1):33-37. PubMed

3. Alfredson H, Pietilä T, Jonsson P, Lorentzon R. Heavy-load eccentric calf muscle training for the treatment of chronic Achilles tendinosis. Am J Sports Med. 1998;26(3):360-366. PubMed

Medical Disclaimer: This content is for informational purposes only and does not constitute medical advice. Shockwave therapy outcomes vary by individual and condition. Consult a qualified healthcare provider to determine if shockwave therapy is appropriate for your situation.