What causes it, and which causes you control
AAOS is clear that this is rarely an injury: “Achilles tendinitis is typically not related to a specific injury. The problem results from repetitive stress to the tendon. This often happens when we push our bodies to do too much, too quickly.” It then names the contributing factors, and three of them are things a pickleball player does to themselves:
- “A sudden increase in the amount or intensity of exercise activity.” The example AAOS gives is adding distance to a run “without giving your body a chance to adjust”. Translated: going from two sessions a week to five because a group invited you.
- “A change in shoewear, which can also lead to increased strain on the Achilles tendon.” Note that AAOS does not say a change to badshoes. Any change in effective heel height is a change the tendon notices. Replace shoes between seasons and alternate the new pair with the old for a fortnight — see when to replace your shoes.
- “Tight calf muscles.” The single most addressable item, and the one that links this page to pickleball calf pain. A tight calf pulls on the insertion all day, not just during a game.
The fourth factor AAOS names is Haglund’s deformity — an enlargement of the bone at the back of the heel that “can rub on the Achilles tendon and cause inflammation and pain”. That is anatomy, not behaviour, and it is one reason a stubborn case deserves an X-ray rather than a third pair of shoes.
The treatment sequence, and a realistic timeline
AAOS reports that in most cases nonsurgical treatment “will provide acceptable pain relief, although it may take a few months for symptoms to improve significantly. Even with early treatment, the pain may last longer than 3 months.” Set your expectations there rather than on a week. The mainstays it lists:
- Rest and activity modification.“Decrease or even stop the activities that make the pain worse.” For people doing high-impact exercise, “switching to low-impact activities will decrease the amount of stress on the Achilles tendon” — AAOS names biking, elliptical and swimming. In practice that means fewer sessions and doubles rather than singles, not necessarily zero pickleball.
- Ice.On the most painful part of the tendon, “up to 20 minutes at a time”, removed sooner if the skin goes numb.
- NSAIDs.They reduce pain and swelling enough to let you do the rehab, but AAOS is careful to note they “do not reduce the thickening of the degenerated tendon” — and advises not using them for more than a month without talking to your doctor.
- Shoewear modification. One of the four named pillars, which is why the three shoes above are on this page.
- Physical therapy.AAOS calls it “very helpful”.
The calf stretch, as specified
Worth doing exactly as written rather than improvising: lean forward against a wall with one knee straight and that heel on the ground, the other leg in front with the knee bent, and push your hips toward the wall in a controlled fashion. Hold 30 seconds and relax. Ten repetitions each foot. The goal, in AAOS’s words, is “to feel the stretch in the calf but not cause pain in the Achilles”. If it hurts the tendon, you have gone too far.
Eccentric strengthening, with the caveat repeated
For noninsertionaltendinitis only, AAOS describes eccentric heel drops — standing with the front half of the foot on a stair, holding a rail for balance, lifting the heels and lowering slowly, twenty repetitions, slow and controlled. It adds two warnings worth taking seriously: these exercises “can cause damage to the Achilles tendon if they are not done correctly” and “at first, they should be performed under the supervision of a physical therapist”. And again: not at all if your tendinitis is insertional.
Rupture: the part that is an emergency
A tear is a different event, not a worse version of the same one. AAOS calls a large or full Achilles tear “a disabling injury” and describes the mechanism precisely: “a very strong force is needed to tear the Achilles tendon. Typically, Achilles tendon tears occur when the calf muscle is stretched too quickly. This can occur when landing from a jump or during cutting movements in a sport.” A hard first step toward a dropped ball is a cutting movement.
Symptoms, as published:
- You may hear a popping noise
- Severe pain and swelling near the heel
- You may not be able to walk on that leg
- You may be unable to stand up on the toes of the injured leg
Many people describe it as feeling like being kicked or hit in the back of the leg when nobody was there. If any of that describes your last session, stop reading and get seen; a doctor can often diagnose it in the room with the Thompson test, where the calf is squeezed to see whether the foot responds.
What weakens a tendon before it tears
This is the most useful part of the AAOS rupture page for an older reader, because several items are modifiable or at least worth knowing about:
- Corticosteroid injections.They have been “linked to an increased risk of tendon rupture”, and “because of this, doctors avoid giving these injections in or around the Achilles tendon”. If one is offered to you for heel pain, that sentence is worth quoting back.
- Certain antibiotics.AAOS names ciprofloxacin (Cipro) and levofloxacin (Levaquin) as “linked with tendon tearing”. If you are mid-course on a fluoroquinolone, that is a fortnight to play gently and a question for your prescriber — not a reason to stop a prescription on your own.
- Chronic conditions. Inflammatory diseases such as rheumatoid arthritis and lupus, diabetes mellitus, infection, obesity and metabolic disease are all listed as able to weaken tendons.
- Anatomy.The middle of the tendon “is thought to have a poor blood supply compared to the other parts”, roughly two and a half inches above the heel attachment — which is exactly where many tears happen.
What a shoe can and cannot do here
Honestly: a shoe cannot heal a tendon, and no court shoe sold today publishes the one spec that would let you compare them properly for this problem. Not one shoe in our registry prints a heel-to-toe drop figure — we checked all of them, and the cell is empty across ASICS, K-Swiss, Skechers and New Balance. What a shoe can do is stop making things worse: keep pressure off an inflamed insertion, absorb some of the impact of each landing, and leave room for a heel lift if slackening the tendon helps you. The Skechers Viper Court leads the three above because its Arch Fit insole is removable and its heel height is published at 1 1/4 inches — the only published heel geometry we have found on any court shoe. Our shoes for Achilles tendonitis page ranks five shoes on that published-heel-structure basis in full.
When to see someone rather than wait
- A pop, a snap, or the sense of being struck in the back of the leg.
- You cannot stand on the toes of that foot.
- Pain at the bone with a visible bump — that may be a spur or Haglund’s deformity, and imaging answers it.
- Swelling that is there all the time and gets worse through the day rather than settling overnight.
- Three months of sensible self-management with no real change. AAOS allows that it can take that long, but not longer without review.
- You are on a fluoroquinolone antibiotic or have had steroid injections near the heel, and the tendon has started hurting.
One closing point, because a page of warnings can read as a reason to quit. The CDC’s position on physical activity for older adults is unambiguous about the benefits, and a sociable court sport delivers balance work, bone loading and company in one hour. The reason to sort out an Achilles rather than retire is that you want to keep the rest of it. Our injury prevention guide is the version of this advice that covers every joint at once, and the warm-up for older players is the five minutes that removes a named risk factor outright.
Nothing here is medical advice, we have examined nobody and we own none of the shoes above. Every medical statement on this page is attributed to the AAOS pages listed in the sources below, read on the date shown. This is exactly what we do and do not do.
