The first steps out of bed hurt. A walk becomes easier after a few minutes, but the back of the heel aches again later. If this pattern keeps returning, the Achilles tendon may need a more deliberate rehabilitation plan than repeated periods of rest.
Achilles tendinopathy often improves with education, adjustment of daily activity, and progressive calf strengthening. The right exercise depends partly on where the tendon hurts. An exercise that helps pain above the heel may aggravate pain where the tendon attaches to the heel bone.
This guide is for adults with persistent, gradually developing Achilles pain. A sudden pop, new loss of push-off strength, or an acute injury needs assessment before starting a strengthening program.
What does Achilles tendinopathy mean?
The Achilles connects the calf muscles to the heel bone. It helps lift the heel during walking, stair climbing, and running. Tendinopathy describes a painful tendon with impaired function; people also use the terms Achilles tendinitis or tendinosis.
There are two common patterns:
- Midportion pain: usually several centimeters above the heel attachment.
- Insertional pain: centered at the attachment on the back of the heel.
Morning stiffness, tenderness, and pain after activity can occur with either pattern. Tendinopathy is different from a complete rupture. The Royal National Orthopaedic Hospital’s patient guide explains these distinctions and why the location matters.
You do not have to be a runner to develop this problem. A change in work demands, walking distance, footwear, or exercise can be relevant. Bring that history to the visit rather than assuming that one shoe or one workout must be responsible.
When is heel or calf pain urgent?
Seek urgent assessment after a sudden snap or pop, particularly with new difficulty pushing off or walking. Stop the activity and avoid testing the tendon repeatedly with heel raises. The AAOS Achilles guide specifically warns that a sudden pop may indicate a tear.
New unexplained swelling, warmth, or redness in one calf also warrants prompt medical evaluation because a blood clot can resemble a muscle or tendon problem. Call 911 for sudden shortness of breath, chest pain, fainting, or coughing blood. These are potential emergency symptoms, not reasons to wait for a routine rehabilitation appointment. See NHS guidance on pulmonary embolism for the underlying warning signs; emergency numbers here are adapted for Hawaii.
What happens at an evaluation?
An examination helps locate the pain and distinguish tendon symptoms from nearby joint, bone, bursa, or nerve problems. A clinician may assess ankle movement, walking, calf strength, and how the tendon responds to carefully selected tasks. Tell the clinician about previous injury, medical conditions, medications, and any recent change in activity.
Imaging is sometimes useful when the diagnosis is uncertain or a tear or another condition is suspected. A scan is not automatically required before rehabilitation. The Dutch multidisciplinary guideline advises against using repeated imaging simply to monitor recovery or predict the course of symptoms. Functional improvement matters more than trying to obtain a normal-looking scan.
For an unclear diagnosis or symptoms that are not improving, PB&J’s foot and ankle service can help evaluate the cause and appropriate treatment pathway.
Why does physical therapy use loading instead of complete rest?
Loading means asking the calf and tendon to work against an appropriate amount of resistance. The aim is to rebuild the ability to manage everyday and recreational demands, while avoiding repeated large flares.
The 2024 midportion Achilles clinical practice guideline supports tendon-loading exercise as a central treatment. Its recommendations also advise activity within pain tolerance rather than complete rest. This applies to diagnosed midportion tendinopathy; it is not permission to exercise through an unassessed acute injury.
Your therapist can adjust the starting resistance, range of motion, frequency, and progression. Some people begin with seated or supported exercises; others can tolerate more demanding standing work. A program should become appropriately challenging as capacity improves. It should not remain the same easy exercise indefinitely, nor start with the hardest exercise found online.
Why insertional pain needs a different approach
Deep ankle bending can compress the tendon near its heel attachment. For insertional symptoms, a therapist may initially limit this motion, use heel raises from a flat surface, and consider a temporary heel lift. Dropping the heel far below a step or aggressively stretching the calf can be a poor starting choice.
A 2025 randomized trial in 42 sport-active adults with chronic insertional tendinopathy compared two progressive rehabilitation approaches. The program that reduced tendon compression produced better pain-and-function scores at 12 and 24 weeks. It combined restricted ankle bending, removal of calf stretching, and heel lifts, so the study does not establish that any one element alone caused the benefit.
The practical lesson is to match rehabilitation to the painful area. Do not copy a midportion heel-drop routine for insertional pain without checking whether it fits your diagnosis.
How much discomfort is acceptable during rehabilitation?
An individualized plan may allow some manageable discomfort, but sharp pain, a sudden change in strength, or worsening walking should trigger reassessment. Ask your therapist for a clear rule about when to reduce exercise or contact the team.
The clinical review on conservative Achilles management emphasizes monitoring symptoms and function during progressive rehabilitation and return to sport. Pay attention to the response after the session and the following morning, not only how the exercise feels while doing it. A sustained increase in morning stiffness or reduced walking tolerance can indicate that the combined demands of exercise and daily life need adjustment.
A short record can make follow-up more useful: note the activity, symptoms afterward, and next-morning stiffness. The goal is a tolerable, improving pattern over time rather than judging recovery from one unusually good or bad day.
Can you keep walking, swimming, or exercising?
Often, some activity can continue with modifications. Your starting point depends on symptom severity, balance, and the demands of the activity. Walking to work, prolonged standing, stairs, and formal exercise all contribute to the total load.
Physical therapy can address movement, strength, and practical activity changes, as described in the American Physical Therapy Association’s patient guide. Lower-impact options may help maintain fitness if they are comfortable and appropriate for you. Even swimming or cycling is not automatically symptom-free for every person.
For a Hawaii walking or hiking goal, tell the therapist about hills, uneven terrain, and the length of the route. Returning to a flat neighborhood walk and returning to a steep trail are different goals. Write down the activity you want back so that the treatment plan has a meaningful destination.
What about medication, injections, and other treatments?
Ice, footwear changes, a heel lift, or medication may help symptoms, but none replaces an appropriate rehabilitation plan. Discuss medication safety with your clinician or pharmacist, particularly with kidney disease, stomach bleeding history, blood thinners, or other medical conditions.
Cortisone injection into the Achilles tendon is generally avoided because of rupture risk, according to AAOS. Platelet-rich plasma should not be presented as a proven shortcut: a 2021 JAMA randomized trial involving 240 adults found that a single PRP injection did not improve chronic midportion Achilles dysfunction compared with a sham procedure at six months. That result concerns the treatment and population studied, rather than every possible injection protocol.
Shockwave therapy or other adjuncts may be discussed for persistent symptoms, with attention to the evidence, costs, and uncertainties. Surgery is usually considered only after sustained nonsurgical care has failed. AAOS describes a period of at least six months before considering surgery for persistent tendinitis. The procedure and risks depend on the damaged area; wound problems, infection, and continued pain are among the tradeoffs to discuss.
How long does recovery take, and when can you run again?
Think in months rather than a few days. The Dutch guideline recommends education, load management, and calf exercises for at least 12 weeks as basic care. This is a treatment period, not a guarantee of complete recovery by week 12.
Return to running or jumping should consider calf strength, heel-rise capacity, walking tolerance, and the response to gradually harder tasks. Feeling less pain at rest does not by itself establish readiness for repeated push-off. The clinical review above recommends a progressive return that accounts for symptoms, function, and recovery between demanding sessions.
If improvement stalls, review the diagnosis, exercise progression, consistency, and overall activity demands with the treating team. Avoid treating a setback as proof that exercise cannot work, or as a reason to keep increasing resistance without reassessment.
Preparing for a useful appointment
Bring your usual walking or exercise shoes, a medication list, and a brief timeline of symptoms. Be ready to point to the painful spot and describe what happens the following morning. Useful questions include: Is this insertional or midportion pain? What activity can I continue? What change means I should call? How will we decide that I am ready for my goal?
PB&J offers physical therapy in Honolulu and Waipahu with coordinated rehabilitation care. For persistent Achilles pain that is limiting walking or exercise, request an evaluation to clarify the diagnosis and develop a suitable loading plan. Use urgent or emergency care for the warning signs described above.
Sources and further reading
- APTA Orthopedics. Midportion Achilles Tendinopathy: Revision 2024.
- de Vos RJ, et al. Dutch multidisciplinary guideline on Achilles tendinopathy. 2021.
- Pringels L, et al. Reducing tendon compression in insertional Achilles rehabilitation. Randomized trial, 2025.
- Silbernagel KG, et al. Conservative Management of Achilles Tendinopathy. 2020.
- Kearney RS, et al. PRP versus sham injection for chronic midportion Achilles tendinopathy. JAMA, 2021.
- AAOS. Achilles Tendinitis.
- APTA ChoosePT. Achilles tendinopathy and physical therapy.
The generated hero is an illustrative rehabilitation scene with a fictional person, not an actual PB&J patient or facility. Exercise selection requires an individual assessment.
