Quick answer: Achilles Tendon Pain Exercises has multiple potential causes including mechanical, neurological, vascular, and inflammatory. The most common causes we identify are overuse, ill-fitting shoes, and biomechanical imbalance. Red flags requiring urgent evaluation: warmth/redness (infection), inability to bear weight (fracture), and unilateral swelling without injury (DVT). Call (810) 206-1402.
Medically reviewed by Dr. Tom Biernacki, DPM
Board-certified podiatric surgeon | Balance Foot & Ankle
Last reviewed: April 2026
Quick answer: The gold-standard exercise for Achilles tendon pain is the Alfredson heavy slow resistance protocol: single-leg eccentric calf raises performed on a step edge, 3 sets of 15 repetitions both with knee straight and knee bent, twice daily for 12 weeks. This protocol produces tendon collagen remodeling, reduces pain, and prevents recurrence. It is the most evidence-supported non-surgical treatment for Achilles tendinopathy with over 25 years of clinical evidence behind it.
Achilles tendon pain is one of the most common running and activity-related injuries, yet one of the most frequently mistreated. At Balance Foot & Ankle in Howell and Bloomfield Hills, Michigan, we see patients who have rested for weeks or months without improvement, not realizing that rest alone does not heal Achilles tendinopathy. The tendon requires specific mechanical loading through carefully designed exercise to trigger the collagen remodeling that leads to recovery.
This guide gives you the complete Achilles tendon exercise protocol, the rationale behind it, the mistakes that slow recovery, and the conditions under which additional treatment is needed.
Achilles Tendon Anatomy and Why It Gets Injured
The Achilles tendon is the largest and strongest tendon in the body, connecting the gastrocnemius and soleus muscles of the calf to the calcaneus (heel bone). It transmits forces of 3.9 times body weight during walking and up to 12.5 times body weight during sprinting. The tendon has two distinct injury patterns: mid-portion tendinopathy (2-6 cm above the heel, the most common) and insertional tendinopathy (at the bone attachment). These require different exercise modifications due to the different mechanical demands at each location.
Tendinopathy (not tendinitis) is the correct term for chronic Achilles pain. Histological studies show little to no inflammation in chronic Achilles tendon pain. Instead, the tendon undergoes degenerative changes: disorganized collagen fibers, increased ground substance, neovascularization, and failed healing attempts. This is why anti-inflammatory rest and ice alone do not resolve the condition.
The Alfredson Eccentric Protocol (Mid-Portion Tendinopathy)
In 1998, Dr. Hakan Alfredson published a landmark study showing that heavy eccentric loading achieved 90% good or excellent outcomes in runners with chronic Achilles tendinopathy who had been told they needed surgery. Subsequent studies have replicated this finding across many populations. The protocol remains the most evidence-supported non-surgical treatment for mid-portion Achilles tendinopathy.
Starting Position
Stand with the ball of the affected foot on the edge of a step, with the heel hanging off the edge. Use a wall or railing for balance. You will perform the exercise with the knee straight (targeting the gastrocnemius) and with the knee bent 15-20 degrees (targeting the soleus).
The Exercise
Rise onto both feet (use the unaffected leg to rise), then slowly lower onto the affected foot alone over a count of 3-4 seconds. This is the eccentric phase: the calf muscles are actively working while lengthening to control the lowering motion. At the bottom, use the unaffected leg to rise back up. Never use the affected leg to rise: only the lowering phase matters.
Progression
Begin with bodyweight only. When 3 sets of 15 repetitions twice daily becomes pain-free, add load using a backpack with weights. Increase load progressively every 1-2 weeks as tolerated. The goal is significant load with moderate (but not severe) pain during the exercise. Pain level of 3-5 out of 10 during exercise is acceptable and expected. Pain above 7 out of 10 means you are loading too heavily.
Key takeaway: The eccentric calf raise is painful for most patients, especially in the first 2-4 weeks. This is normal and expected. The research shows that patients who push through moderate pain during the exercise (staying below 5/10 pain) achieve better outcomes than those who stop at the first discomfort. The key is that pain should return to baseline within 24 hours of each session.
Protocol Summary
- Frequency: Twice daily, every day (yes, including days with soreness)
- Volume: 3 sets of 15 repetitions with knee straight + 3 sets of 15 repetitions with knee bent
- Load: Bodyweight initially, progressing to added weight in backpack
- Duration: 12 weeks minimum for full benefit
- Pain guidance: 3-5/10 during exercise is acceptable; pain should return to baseline within 24 hours
Modified Protocol for Insertional Achilles Tendinopathy
Insertional tendinopathy (at the heel bone attachment) requires a critical modification: the heel must NOT drop below neutral during eccentric exercises. Standard eccentric calf raises on a step edge compress the calcaneal insertion in the bottom position, aggravating insertional pathology. For insertional tendinopathy, perform the eccentric lowering phase only to neutral (foot flat), not to heel drop, or perform on flat ground rather than a step edge.
Insertional tendinopathy is also associated with Haglund deformity and retrocalcaneal bursitis. A heel lift in the shoe reduces Achilles tension and reduces impingement on the bony insertion. Shoes with a high heel counter that rubs the posterior heel should be avoided entirely.
Supporting Interventions
Heavy Slow Resistance Protocol (HSR)
As an alternative or complement to purely eccentric work, the Heavy Slow Resistance protocol uses slow bilateral calf raises (3 seconds up, 3 seconds down) with significant added load. HSR produces equivalent outcomes to the Alfredson protocol in multiple randomized trials. Some patients find it psychologically easier to adhere to because it involves both concentric and eccentric phases.
Isometric Loading for Pain Flares
During acute pain flares or when starting a program, isometric calf contractions (standing on both feet, pressing the heels down against the ground for 30-45 second holds, 5 repetitions) reduce tendon pain immediately through isometric analgesia. Useful before activity to reduce pain enough to tolerate the eccentric protocol.
Shockwave Therapy (ESWT)
For Achilles tendinopathy not responding to 3 months of eccentric loading, ESWT is the recommended next step before surgery. It is most effective for mid-portion tendinopathy. Multiple protocols exist; outcomes are broadly equivalent with approximately 60-75% significant improvement.
Warning: Achilles Tendon Pain That Needs Immediate Evaluation
- Sudden complete loss of plantarflexion strength after a pop in the Achilles: Achilles tendon rupture requiring urgent assessment and typically surgery
- Thompson test positive (squeezing the calf does not produce plantarflexion): confirms complete rupture
- Severe Achilles pain with visible swelling and fever: possible septic tenosynovitis
- Achilles pain in a patient taking fluoroquinolone antibiotics (ciprofloxacin, levofloxacin): greatly increased rupture risk, stop activity and see a doctor
Frequently Asked Questions
How long does Achilles tendinopathy take to heal with exercises?
The Alfredson protocol requires a minimum of 12 weeks to produce full collagen remodeling. Most patients notice improvement in pain within 4-6 weeks. Full recovery to pre-injury activity levels takes 3-6 months in mild-to-moderate cases, and 6-12 months in severe or chronic cases. The most common reason for failure is stopping the protocol at 4-6 weeks when pain improves but before structural healing is complete.
Should I rest Achilles tendinopathy?
Complete rest is not beneficial for Achilles tendinopathy and typically makes outcomes worse. The tendon requires mechanical loading to stimulate collagen synthesis. The goal is to reduce high-impact loading (running, jumping) while maintaining tendon loading through low-impact exercise and the eccentric protocol. Continue cycling, swimming, and walking as these load the Achilles at tolerable levels.
Can I run with Achilles tendinopathy?
Gradual running is compatible with Achilles tendinopathy rehabilitation for mild-to-moderate cases, provided the eccentric protocol is performed consistently and running pain stays below 5/10 and returns to baseline within 24 hours. If running pain is severe or persists after activity, running volume must be reduced. Avoid speedwork and hills during the early phases.
What makes Achilles tendinopathy worse?
The most common factors: aggressive complete rest (allows further tendon degeneration), sudden return to full activity after rest (overloads a weakened tendon), running on hard surfaces without adequate footwear, ignoring calf tightness (one of the strongest risk factors), low heel-drop footwear or barefoot running that maximizes Achilles load, and fluoroquinolone antibiotics which directly damage tendon tissue.
Do I need surgery for Achilles tendinopathy?
Less than 10-15% of Achilles tendinopathy cases require surgery. Surgery is reserved for cases that have failed at least 6 months of comprehensive conservative management including eccentric loading and shockwave therapy. Surgical options include open or minimally invasive tendon debridement. Recovery after surgery is 4-6 months. Conservative treatment should always be exhausted first.
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Sources
- Alfredson H, et al. Heavy-load eccentric calf muscle training for the treatment of chronic Achilles tendinosis. Am J Sports Med. 1998;26(3):360-366.
- Beyer R, et al. Heavy slow resistance versus eccentric training as treatment for Achilles tendinopathy. Am J Sports Med. 2015;43(7):1704-1711.
- Rio E, et al. Isometric exercise induces analgesia and reduces inhibition in patellar tendinopathy. Br J Sports Med. 2015;49(19):1277-1283.
- van der Plas A, et al. A 5-year follow-up study of Alfredson’s heel-drop exercise programme in chronic midportion Achilles tendinopathy. Br J Sports Med. 2012;46(3):214-218.
When Shoes Aren’t Enough — Dr. Tom’s Top 9 Orthotics
About 30% of patients I see for foot pain need MORE than a great shoe — they need a structured insole. Below: my complete 2026 orthotic ranking with pros, cons, and the specific patient I’d give each one to.
★ DR. TOM’S COMPLETE 2026 ORTHOTIC RANKING
9 Best Prefab Orthotics by Use Case
PowerStep, Currex, Spenco, Vionic, and PowerStep Pinnacle — every orthotic I’ve fitted to thousands of patients across both Michigan offices. Each card includes pros, cons, and the specific patient I’d give it to. Real Amazon ratings, review counts, and prices below.
Best All-Purpose Orthotic for Most Patients
Semi-rigid arch shell + dual-layer cushion + deep heel cup. The orthotic I’ve fitted to more patients than any other for 15 years. APMA-accepted. Trim-to-fit design works in athletic shoes, casual shoes, and most work boots.
✓ Pros
- Semi-rigid arch shell provides true biomechanical correction
- Deep heel cup centers the heel and reduces lateral instability
- Dual-layer cushion (top + bottom) lasts 9-12 months daily wear
- Available in 8 sizes for precise fit
- APMA-accepted and clinically validated
- Lower price than PowerStep Pinnacle for equivalent function
✗ Cons
- Too thick for most dress shoes (use ProTech Slim instead)
- Some break-in period required (3-7 days for arch tolerance)
- Not enough correction for severe pes planus or rigid pes cavus
Dr. Tom’s Recommendation: If a patient has run-of-the-mill plantar fasciitis, mild flat feet, or arch fatigue, this is the first orthotic I try. Better value than PowerStep Pinnacle for 90% of patients, which is why I swapped it into our clinic kits three years ago. Sub-$50 typically.
Maximum Motion Control · Flat Feet & Severe Over-Pronation
PowerStep’s most aggressive stability orthotic. Adds a 2°-7° medial heel post on top of the standard PowerStep platform — designed specifically for flat-footed patients and severe pronators who need real corrective force.
✓ Pros
- 2°-7° medial heel post adds aggressive pronation control
- Same trusted PowerStep arch shell, more correction
- Built specifically for flat-foot biomechanics
- Excellent for posterior tibial tendon dysfunction (PTTD)
- Removable top cover for cleaning
✗ Cons
- Too aggressive for neutral-arch patients
- Needs longer break-in (10-14 days) due to stronger correction
- Adds 2-3 mm of stack height — won’t fit slim dress shoes
Dr. Tom’s Recommendation: When a patient comes in with significant flat feet AND symptoms (heel pain, arch pain, knee pain), the Original PowerStep isn’t aggressive enough. The Maxx is what gets prescribed. About 25% of my flat-footed patients end up here.
Low-Profile · Fits Dress Shoes & Narrow Casuals
3 mm slim profile with podiatrist-designed tri-planar arch technology. Engineered specifically to fit inside dress shoes, oxfords, loafers, and women’s flats without crowding the toe box. Vionic was founded by an Australian podiatrist.
✓ Pros
- 3 mm slim profile (vs 7-10 mm for standard orthotics)
- Tri-planar arch technology adds support without bulk
- Built-in deep heel cup despite slim design
- Fits dress shoes WITHOUT having to remove the factory insole
- Trim-to-fit · APMA-accepted
✗ Cons
- Less arch support than full-volume orthotics
- Top cover wears faster than thicker alternatives
- Not enough correction for severe foot deformities
Dr. Tom’s Recommendation: My default when a patient says ‘I need orthotics but I have to wear dress shoes for work.’ Slim enough to fit in oxfords and pumps without the heel sliding out. The single highest-impact change you can make for office workers with foot pain.
Built-In Metatarsal Pad · Morton’s Neuroma · Ball-of-Foot Pain
Standard Pinnacle orthotic with a built-in metatarsal pad positioned proximal to the metatarsal heads — the exact location that offloads neuromas and metatarsalgia. No need for separate met pads or pad placement guesswork.
✓ Pros
- Built-in met pad eliminates DIY pad placement errors
- Specifically designed for Morton’s neuroma + metatarsalgia
- Same trusted PowerStep arch + heel cup platform
- Top cover protects sensitive forefoot skin
- Faster relief than orthotics + add-on met pads
✗ Cons
- Met pad position is fixed (can’t fine-tune individual placement)
- Some patients with very small or very large feet need custom
- Slightly thicker than the standard Pinnacle
Dr. Tom’s Recommendation: If a patient has Morton’s neuroma, sesamoiditis, or generalized ball-of-foot pain (metatarsalgia), this saves a clinic visit and a prescription. The built-in pad placement is anatomically correct for 80% of feet. Way better than DIY met pads.
Adaptive Dynamic Arch · Athletic & Daily Wear
Currex’s flagship adaptive arch technology — the orthotic flexes with your gait instead of fighting it. Different stiffness zones along the length give you targeted support at the heel, midfoot, and forefoot. Available in three arch heights (low/medium/high).
✓ Pros
- Dynamic flex zones adapt to natural gait cycle
- Three arch heights ensure precise fit
- Lighter than rigid orthotics (no ‘heavy foot’ feel)
- Excellent for runners and athletic walkers
- European podiatric design (German engineering)
✗ Cons
- More expensive than PowerStep Original ($55-65 typically)
- Less aggressive correction than Pinnacle Maxx for severe cases
- Three arch heights means you must self-select correctly
Dr. Tom’s Recommendation: I started recommending Currex three years ago for runners who said PowerStep felt ‘too rigid.’ The dynamic flex zones respect natural gait. Best for active patients who walk 8K+ steps daily and don’t need maximum motion control.
Running-Specific · Heel Strike + Forefoot Strike Compatible
Currex’s purpose-built running orthotic. The midfoot flex zone is positioned for runner’s gait mechanics, with a flared heel cushion for heel strikers and a forefoot rocker for midfoot/forefoot strikers. Tested on 1000+ runners during product development.
✓ Pros
- Designed by German biomechanics lab specifically for runners
- Dynamic arch flexes with running gait (not static like PowerStep)
- Three arch heights (low/medium/high)
- Reduces overuse injury risk in mid-distance runners
- Lightweight (no impact on cadence)
✗ Cons
- Premium price ($60-75)
- Not aggressive enough for severe over-pronators (use Pinnacle Maxx)
- Runner-specific design = less ideal for daily walking shoes
Dr. Tom’s Recommendation: If a patient runs 20+ miles per week and has plantar fasciitis or shin splints, this is the orthotic I prescribe. The dynamic flex zones respect running biomechanics in a way that no rigid PowerStep can match. Pricier but worth it for serious runners.
Cavus Foot & High-Arch Patients
Polyurethane base with a deeper heel cup and higher arch profile than PowerStep — built for cavus (high-arched) feet that need maximum cushion and support. The 5-zone cushioning system addresses the unique pressure points of high-arch feet.
✓ Pros
- Deeper heel cup centers the heel for cavus foot stability
- Higher arch profile fills the void under high arches
- 5-zone cushioning addresses cavus foot pressure points
- Polyurethane base lasts 12+ months
- Available in Wide width
✗ Cons
- Too tall/aggressive for normal or low arches
- Won’t fit slim dress shoes
- Pricier than PowerStep Original
- Some patients find the arch height uncomfortable initially
Dr. Tom’s Recommendation: Cavus foot patients are often misdiagnosed and given low-arch orthotics — that makes everything worse. Spenco’s Total Support has the arch profile that high-arch feet actually need. About 15% of my patients have cavus feet; this is what they wear.
Cushion Layer · Standing All Day · Gel Pressure Relief
NOT a true biomechanical orthotic — this is a cushion insole. But for patients who want gel pressure relief instead of arch correction (or to add ON TOP of factory insoles in work boots), this is the best gel option on Amazon.
✓ Pros
- Genuine gel cushioning (not foam pretending to be gel)
- Targeted gel waves under heel and ball of foot
- Trim-to-fit · works in most shoe types
- Sub-$15 price (most affordable option in this list)
- Massaging texture is genuinely soothing
✗ Cons
- ZERO arch support — this is cushion only
- Won’t fix plantar fasciitis or flat-foot issues
- Compresses faster than PowerStep (4-6 months)
- Top cover wears through in high-mileage applications
Dr. Tom’s Recommendation: I recommend these to patients who tell me ‘I just want my feet to stop hurting at the end of my shift’ and who don’t have a biomechanical issue. Construction workers, factory workers, retail. Pure cushion does the job for them.
Tight-Fitting Shoes · Cycling Shoes · Hockey Skates
PowerStep Pinnacle’s slim version of their famous Green insole. The trademark stabilizer cap is preserved but the overall thickness is reduced — works in cycling shoes, hockey skates, ski boots, and other tight-fitting footwear that the standard PowerStep Pinnacle can’t fit into.
✓ Pros
- Stabilizer cap centers the heel (PowerStep Pinnacle’s signature feature)
- Slim profile fits tight athletic footwear
- Lasts 12+ months daily wear
- Excellent for cycling shoes specifically
- Built-in odor-control treatment
✗ Cons
- Premium price ($45-55)
- Less cushion than PowerStep equivalents
- Not as aggressive correction as Pinnacle Maxx for flat feet
- The signature ‘heel cup feel’ takes 1-2 weeks to adapt to
Dr. Tom’s Recommendation: If you’re a cyclist with foot numbness, hot spots, or knee pain — this is the orthotic. The stabilizer cap solves cycling-specific biomechanical issues that no other orthotic addresses. Worth the premium for athletes.
None of these solving your foot pain?
Some patients (about 30%) need custom-molded prescription orthotics. We make 3D-scanned custom orthotics in our Howell and Bloomfield Hills offices — specifically built for your foot mechanics.
Schedule a Custom Orthotic Fitting →FSA/HSA eligible · Most insurance accepted · (810) 206-1402
Frequently Asked Questions
When should I see a doctor?
See a podiatrist if pain persists past 2 weeks, prevents normal activity, or is accompanied by red-flag symptoms (warmth, swelling, numbness, inability to bear weight).
Can I treat this at home?
Mild cases respond to RICE protocol (rest, ice, compression, elevation), supportive shoes, and OTC anti-inflammatories. Persistent symptoms need professional evaluation.
How long does it take to heal?
Most soft tissue injuries resolve in 2-6 weeks with appropriate care. Bone injuries take 6-12 weeks. Chronic conditions need longer-term management.
What is Achilles tendon?
Achilles tendon is a common foot/ankle condition that affects mobility and quality of life. Understanding the underlying cause is the first step in successful treatment. Our podiatrists at Balance Foot & Ankle perform a hands-on biomechanical exam, review your activity history, and use diagnostic imaging when appropriate to identify the root cause—not just treat the symptom. Many patients have been told to “rest and ice” without a deeper diagnostic workup; our approach is different.
Symptoms and warning signs
Common signs of Achilles tendon include pain that worsens with activity, morning stiffness, swelling, tenderness when palpated, and difficulty bearing weight. If you experience sudden severe pain, inability to walk, visible deformity, numbness or color change, contact our office the same day or visit urgent care—these can signal a more serious injury such as a fracture, tendon rupture, or vascular compromise. Diabetics with any foot wound should seek same-day care.
Conservative treatment options
Most cases of Achilles tendon respond to non-surgical care: structured rest, supportive footwear changes, custom orthotics, targeted stretching and strengthening protocols, anti-inflammatory medications when medically appropriate, and in-office procedures such as ultrasound-guided injections. We also offer advanced therapies including MLS laser therapy, EPAT/shockwave, regenerative injections, and image-guided procedures. Treatment is sequenced from least invasive to most invasive, and we explain the rationale at every step.
When is surgery considered?
Surgery is reserved for cases that fail 3-6 months of well-structured conservative care, when there is structural pathology (severe deformity, complete tear, advanced arthritis), or when imaging shows damage that will not heal without intervention. Our surgeons have performed 3,000+ foot and ankle procedures and prioritize minimally-invasive techniques whenever appropriate. We discuss recovery timelines, return-to-activity milestones, and realistic outcome expectations before any procedure is scheduled.
Recovery timeline and prevention
Recovery from Achilles tendon varies based on severity and chosen treatment path. Conservative cases often improve within 4-8 weeks with consistent adherence to the protocol. Post-procedural recovery may range from a few days (in-office procedures) to several months (reconstructive surgery). Long-term prevention involves footwear assessment, activity modification, structured strengthening, and regular check-ins with your podiatrist if you have a history of recurrence. We provide written home-exercise plans and digital follow-up support.
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Same-week appointments available in Howell and Bloomfield Hills, Michigan.
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Dr. Tom Biernacki, DPM is a double board-certified podiatrist and foot & ankle surgeon 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 reached over one million views.
- Plantar Fasciitis: Diagnosis and Conservative Management (PubMed)
- Plantar Fasciitis (APMA)
- Diagnosis and Treatment of Plantar Fasciitis (PubMed / AAFP)
- Heel Pain (APMA)
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