Medically reviewed by Dr. Tom Biernacki, DPM
Board-certified podiatric surgeon | Balance Foot & Ankle, Howell & Bloomfield Hills, MI
Last reviewed: May 2026

| Type | Location | Imaging | Key Clinical Feature | Exercise Protocol |
|---|---|---|---|---|
| Non-insertional (mid-portion) | 2–6cm above calcaneal insertion | MRI: fusiform thickening; intrasubstance degeneration | Pinch test positive; worse with running; improves with warm-up | Alfredson heavy-load eccentric protocol (3×15 twice daily) |
| Insertional | At calcaneal tuberosity insertion | MRI: enthesopathy; calcification; Haglund deformity | Posterior heel prominence; pain with heel cord stretch; shoe counter aggravates | Silbernagel combined eccentric-concentric; NO painful end-range stretch |
| Paratenonitis | Paratenon sheath (peritendinous) | MRI: peritendinous edema; sheath fluid | Crepitus on palpation; diffuse Achilles tenderness; acute onset | Rest → progressive loading; avoid eccentric overload in acute phase |
| Partial Tear | Variable; often mid-portion | MRI: focal high T2 signal; partial fiber disruption | Acute-on-chronic; sudden pain increase; Thompson + partial | NWB boot → progressive loading; surgical debridement if failed 6 months |
| Treatment | Evidence Level | Indication | Protocol | Outcome |
|---|---|---|---|---|
| Alfredson Eccentric Protocol | Level I (non-insertional) | Non-insertional mid-portion tendinopathy | 3 sets × 15 reps, twice daily × 12 weeks; straight + bent knee | 60–80% symptom improvement at 12 weeks |
| Silbernagel Combined Loading | Level I | Both insertional and non-insertional | Progressive eccentric-concentric × 12 weeks; pain monitored | Non-inferior to Alfredson; better adherence |
| Heavy Slow Resistance (HSR) | Level I | All types; poor tolerance to high-rep protocols | 4 sets × 6 reps, 3× per week × 12 weeks; loaded at 6–8 RPE | Non-inferior to Alfredson; superior MRI tendon changes |
| ESWT (Shockwave) | Level I (non-insertional); Level II (insertional) | Failed 12 weeks exercise; calcific insertional | 3–5 radial sessions; 2,000 pulses | 60–75% improvement; best combined with exercise |
| PRP Injection | Level II (conflicting RCT data) | Partial tear; failed exercise + ESWT | Single or double injection under ultrasound | Some RCTs show benefit; others negative; adjunct not first-line |
| Surgical Debridement | Level III | Failed 6 months conservative; >50% tendon degeneration on MRI | Open or endoscopic; remove degenerative tissue; Haglund resection if insertional | 75–85% good/excellent; 4–6 month recovery |
Quick answer: Treatment for achilles tendinopathy exercises treatment recovery follows a stepwise approach: 1) conservative care first (rest, ice, supportive footwear, OTC anti-inflammatories), 2) physical therapy and targeted exercises, 3) in-office treatments (injections, custom orthotics) if conservative fails at 4-6 weeks, 4) surgery for refractory cases. Most patients resolve at step 1 or 2. Call (810) 206-1402.
Medically Reviewed | Dr. Tom Biernacki, DPM | Board-Certified Podiatric Surgeon | Balance Foot & Ankle, Michigan

Watch: Achilles Tendonitis & Back of Heel Pain [BEST Home Treatments 2024!] — MichiganFootDoctors YouTube
Achilles tendinopathy is one of the most common running and sport injuries — and one of the most mismanaged. The treatment depends critically on where in the tendon the problem is located. Mid-portion and insertional Achilles tendinopathy require distinctly different approaches.
The most important clinical decision with Achilles Tendinopathy Exercises Treatment Recovery isn’t which treatment to start with — it’s identifying the correct subtype. That changes everything. Call (810) 206-1402.
The most important clinical decision with Achilles Tendinopathy Exercises Treatment Recovery isn’t which treatment to start with — it’s identifying the correct subtype. That changes everything. Call (810) 206-1402.
Mid-Portion vs. Insertional: Why It Matters
Mid-portion tendinopathy occurs 2-6 cm above the calcaneal insertion. The classic treatment is eccentric loading (heel drops). Insertional tendinopathy occurs at the bone-tendon junction. Eccentric exercises that take the heel below level are contraindicated for insertional disease — they increase compression at the insertion. Confusing the two leads to prolonged suffering.
Eccentric Heel Drop Protocol (Mid-Portion)
Alfredson’s protocol: stand on a step, rise on both feet, lower slowly on the affected foot only, going below step level. 3 sets of 15 repetitions, twice daily, 7 days per week for 12 weeks — even when it hurts (within reason). This protocol has the strongest evidence base of any tendinopathy treatment, producing clinically significant improvement in 60-80% of patients.
Insertional Achilles Treatment
Avoid eccentric loading below neutral. Heel lifts (7-10mm) reduce Achilles insertion loading. ESWT is particularly effective for insertional tendinopathy, targeting the degenerative tissue and calcification often present at the insertion. Load management (reduce high-impact activity by 30-50%) is critical. PRP for insertional disease refractory to 3-6 months of conservative care.
Additional Supportive Treatments
Night splints maintain the ankle in slight dorsiflexion overnight, reducing morning Achilles stiffness. Anti-inflammatory measures (ice, NSAIDs for acute flares). Gait retraining for runners with overstriding or excessive heel striking. Custom orthotics addressing underlying pronation or supination contributing to Achilles stress.
When Conservative Treatment Fails
After 3-6 months of appropriate eccentric exercise and conservative care, PRP and ESWT are the next steps before considering surgery. Achilles tendon debridement surgery for refractory tendinopathy has good outcomes but carries a prolonged recovery (3-6 months).
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Dr. Tom Biernacki’s Recommendation
The most common mistake I see with Achilles tendinopathy is applying the Alfredson eccentric heel drop protocol to insertional disease — it makes these patients significantly worse. The first question I always ask is: where exactly is the pain? The treatment completely depends on the answer. — Dr. Tom Biernacki
— Dr. Tom Biernacki, DPM | Board-Certified Podiatric Surgeon | Balance Foot & Ankle
Frequently Asked Questions
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Dr. Tom Biernacki, DPM is a board-certified foot & ankle surgeon (ABFAS & ABPM) at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has made him one of the most-followed foot & ankle educators on YouTube.