How to Run With Achilles Tendonitis Safely (Without Making It Worse)
If you’ve been told the only way to fix Achilles tendonitis is to stop running completely… you might actually be making your injury worse.
One of the biggest myths in the running world is that you can’t run with Achilles pain.
In reality, for most runners, total rest doesn’t build a stronger tendon — it reduces its capacity. And that’s why so many runners get stuck in the frustrating cycle:
Pain → Stop
Feel better → Run again
Pain returns → Stop again
That’s not healing. That’s deconditioning.
Let’s break down when you can run with Achilles tendonitis, when you shouldn’t, and how to do it safely.
Why Total Rest Often Makes Achilles Tendinopathy Worse
Achilles tendinopathy is not usually a tear. It’s not a pulled muscle.
It’s a load tolerance problem.
Your tendon became irritated because the load placed on it exceeded its current capacity.
And here’s the key principle most runners miss:
Tendons adapt to load.
When you completely rest the tendon:
– Mechanical stimulus decreases
– Collagen organization declines
– Tendon stiffness drops
– Calf strength weakens
– Load tolerance shrinks
So when you return to running weeks later, the same load feels even harder.
Rest may calm symptoms temporarily.
But it does not rebuild capacity.
Can You Run With Achilles Tendonitis?
The answer is: sometimes — if it’s modified correctly.
Instead of asking, “Should I stop running?” the better question is:
“How can I adjust my running so my tendon can adapt?”
I use a simple 3-part safety framework with runners.
3 Signs It’s Safe to Run With Achilles Pain
1. Pain is 3 out of 10 or less during the run
Mild discomfort is acceptable.
Sharp, escalating pain is not.
Some stiffness at the start of a run that improves as you warm up is common.
What you don’t want is worsening pain throughout the run.
2. You are not limping
If you are changing your gait, protecting the leg, or visibly limping — stop.
Altered mechanics increase overload elsewhere.
3. Pain is not worse the next morning
Morning stiffness is common with Achilles tendinopathy.
But it should not be significantly worse than the day before.
If you meet these three criteria, you likely don’t need to stop running.
You need to modify running.
That’s very different.
Free Achilles Pain Resource
To help guide you through your own recovery, we created a FREE downloadable resource:
🎁 The Ultimate Guide to Running Healthy Without Achilles Pain
✅ Understand what causes insertional Achilles pain
✅ Learn the best rehab strategies
✅ Discover how to stay active without making things worse
Insertional vs Midportion Achilles Tendonitis: Why It Matters
Not all Achilles pain is the same.
Midportion Achilles Tendinopathy
Occurs about 2–6 cm above the heel bone.
Typically responds well to:
– Slow eccentric heel drops
– Heavy slow resistance training
Insertional Achilles Tendonitis
Occurs where the tendon attaches to the heel bone.
This type involves compression against the heel.
That means:
– Deep stretching can irritate it
– Heel drops off a step may aggravate it
– Uphill running increases compression
For insertional pain:
– Perform heel raises to floor level only
– Avoid dropping below neutral
– Be cautious with aggressive stretching
Diagnosis matters because treatment is not one-size-fits-all.
How to Run With Achilles Tendonitis Safely
If you’re in the safe zone, here’s how to modify your running.
1. Slow Down
Speed increases tendon load.
Keep runs conversational pace.
2. Avoid Hills Temporarily
Inclines increase dorsiflexion and compression at the Achilles.
Flat routes are your friend during recovery.
3. Reduce Volume Before Frequency
Instead of running fewer days per week, consider:
– Keeping frequency consistent
– Reducing mileage per run
Example:
Instead of 5 runs at 6 miles, run 5 runs at 3 miles with a long run of 5 or 6 miles.
This maintains load exposure without overwhelming the tendon.
4. Use a Run-Walk Strategy
A typical starting point:
1 minute run
1 minute walk
Progress weekly:
2 minutes run / 1 minute walk
Then 2 minutes run / 30 seconds walk
This keeps load in the system while allowing recovery windows.
Download my free Return to Run Schedule here!
5. Strengthen the Tendon (Non-Negotiable)
Running modification alone is not enough.
You must rebuild tendon capacity.
For midportion Achilles:
– Slow 5–6 second eccentric heel drops
– Heavy slow resistance (3 seconds up, 3 seconds down)
For insertional Achilles:
– Heel raises to floor level only
– Avoid dropping below step height
– Avoid aggressive stretching
Later stage:
– Add progressive resistance
– Introduce plyometrics
– Return to performance gradually
Tendons adapt to progressive loading, not avoidance.
When You Should Stop Running
There are times you need to pause running.
Stop if:
– Pain is above 5 out of 10
– You are limping
– Pain worsens week to week
– You cannot walk downstairs comfortably
That’s overload.
But most runners I see are not there.
They are in the yellow zone, which means modify, not quit.
The Bigger Picture: Capacity Prevents Breakdown
I’ve seen this in hundreds of runners.
When they continue smart loading and progressive strength work, they not only resolve Achilles pain but they come back stronger.
The key is structure.
Not guessing.
Not emotional reactions.
Not total shutdown.
Structured progression.
The Bottom Line
If you’re asking:
Can I run with Achilles tendonitis?
Is it safe to run with Achilles pain?
Here’s your answer:
If you meet the safety criteria.
If you modify intelligently.
If you follow a progressive strengthening plan.
Yes.
Running may actually help.
Because tendons need controlled load to heal.
Want a Step-by-Step Plan?
If you want my exact framework for:
– Running with Achilles tendonitis
– Achilles tendinopathy exercises
– Structured return-to-run progressions
– Long-term injury prevention
Download my free Achilles guide here.
And if you want this mapped out week by week with stage-based strength plans and coaching support, that’s exactly what we do inside Healthy Runner Academy.
Stop guessing.
Stop avoiding.
Start progressing.
Get stronger.
Run faster.
Enjoy lifelong injury-free running.
If you are wondering if your running shoes are making your achilles injury worse…
Click here to learn the 4 key features that you want to look for when shopping for the right running shoes to run pain free with insertional achilles tendonitis!
Will I ever run again with achilles tendonitis?
Yes! You can as long as you load the tendon properly to stimulate healing with specific strengthening exercises.
Watch Achilles Loading Exercises to treat achilles tendonitis here!
These exercises have been a game changer for my athletes who have overcome achilles pain to get back to running and doing what they love.
He Conquered His Chronic Achilles Pain to Crush the Berlin Marathon
What do you do if you are at a crossroads with improving in the marathon? On one side is the obvious safe route with not training for a marathon due to chronic achilles pain…. OR there’s the ability to continue to run each and every week AND still heal from your achilles tendonitis. Which would you choose?
This is the exact problem Jason faced. On one side, he was training hard with speed work to get faster but kept getting frustrated because his achilles pain never went away…. On the other hand he had a desire to get faster to get a marathon PR. Then he discovered something that made everything click…
Watch what Jason had to say about working with Dr. Duane Scotti here!
🎯 Ready to Run Again — Without the Setbacks?
If you’ve been sidelined by achilles tendinitis, getting back out there can feel intimidating. The fear of re-injury is real… but it doesn’t have to be your reality.
That’s why I created the Spark Healthy Runner Signature Return to Run Program — a simple, step-by-step plan designed to guide you back to running safely and confidently.
Whether you’re a runner, coach, or healthcare provider, this plan will give you:
✅ Clear run/walk progressions
✅ Daily guidance for the first 6 weeks (BONUS printable calendar!)
✅ A proven roadmap to rebuild strength and mileage without setbacks
Download your FREE Return to Run Plan now and start moving forward the smart way — so you can enjoy every mile again, injury-free.
Click here to download your Return to Run Program
Watch how Katja went from achilles pain to Chicago marathon dream
These are just 2 examples from the hundreds and hundreds of runners who have implemented this Spark method of overcoming achilles pain to grow as a runner.
If you want to fast track your recovery and get clarity and focus like Jason or Katja, that is exactly what we do within our high touch point 1:1 Spark Healthy Runner coaching program where I am your running physical therapist and coach all in one or you work with one of the coaches on our team and I serve as your PT consultant guiding the process.
Learn more about the Spark Healthy Runner signature coaching program and schedule a call now by clicking this link!
Healthy Runner Academy is a membership for runners who want to feel stronger, more confident, and run pain-free all year long — without the overwhelm.
👉 Join the waitlist here and be the first to access our next enrollment and get exclusive bonuses!
Get my full personal running story here
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Thanks for reading!
Yours in health,
Duane
Connect with Dr. Duane:
Dr. Duane Scotti, DPT, PhD, OCS is a running physical therapist, run coach, host of the Healthy Runner podcast, and founder of Spark Healthy Runner and has been a leader in the rehab and running community for 20+ years.
Duane initially started running as an adult, wanting to add some cardio to his gym sessions. After having hip surgery, his doctor advised him to get off the treadmill and run outside. Without having fully recovered, Duane suffered his first running-related hamstring tendon injury and many others as a novice runner early on.
As a coach, he has guided thousands of athletes back to running, finishing their first marathon, crushing a personal best, and even the elusive Boston Marathon qualifying time.
After 19 years teaching in higher education, Duane decided to step away as a Clinical Associate Professor of Physical Therapy to pursue his passion educating the running community. Through his signature 1:1 coaching program, Healthy Runner Academy membership, weekly videos, and podcast episodes, he empowers runners to get stronger, run faster, and enjoy lifelong injury free running without having to stop running to get over an injury. Dr. Duane truly believes that anyone can run and that all runners should be treated differently when recovering from an injury. He is on a mission to change the traditional thinking that running causes “overuse injuries” or “your body is just not meant to run” and you must “take a break” to get better. Through strength and run specific training you can grow a strong mind, strong body, and just keep running!
Duane received his Bachelor of Health Science degree and Master of Physical Therapy degree from Quinnipiac University in 2001 and 2003. He then went on to receive a clinical Doctor of Physical Therapy and a Ph.D. in Physical Therapy from Nova Southeastern University in 2017. Duane is a board-certified Orthopaedic Clinical Specialist, RRCA Certified Running Coach, Certified Mulligan Practitioner, certified in dry needling and has advanced training in spinal manipulation and rehabilitation for runners.
As an athlete, Duane is an adult-onset runner, 6x marathoner, avid half marathoner, and enjoys challenging himself to learn and grow in his personal running journey!
A native New Yorker from Long Island, Duane currently lives in Cheshire, Connecticut with his wife Deb and his two teenage daughters who are competitive volleyball players. They all love to explore new beaches along the east coast.
Get weekly running tips on the Healthy Runner Podcast…available wherever you get your podcasts!
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“I don’t have enough words to express my gratitude towards Duane Scotti and the Spark Healthy Runner program. When I started working with Duane, I had been dealing with chronic shin splints/posterior tibialis tendinitis for almost a year.
I had worked with multiple other coaches and physical therapists with little success and was at the point of almost giving up on my love for running. Duane is so kind, thoughtful and knowledgeable as both a physical therapist and running coach. Our first virtual meeting lasted two hours because he was so meticulous in his assessment. His strength and running program is progressive and created so that you can continue to build strength and mileage as you heal. His strength program is unique, effective, and fun.
Additionally, his warm-up routine is awesome and includes drills that over time have made me a more efficient runner. His training platform is easy to use, and he is always readily available to chat when problems or questions arise.
Over four months of working with Duane, I have built back to five days a week of running and am almost back up to my pre-injury weekly mileage and long run distance. Whenever I have flare ups or setbacks, Duane reassures me and makes necessary adjustments so that I can continue to progress in my running journey. I have had so much success with him so far that I have signed on for four more months so that he can help me to continue getting stronger as I train for the Dopey challenge in Disney World.
If you are struggling with a running injury and are feeling hopeless, you have to reach out to Duane Scotti. Of course, you will have to put in a lot of hard work, but with Duane by your side, you will be able to achieve your goals and more. Thank you Spark Healthy Runner for bringing the spark back to my running!”
You can teach an old dog new tricks!!! I have never considered myself a runner and I knew I needed to be smart about it because I am no spring chicken. Spark preached getting strong and healthy to be injury free and they practice what they preach. I am soooo glad I made the investment in me! I finished my half marathon last weekend and couldn’t be any happier! The program fed me all the steps I needed to essentially learn how to run long distance, build strength, nutrition help, a forum of other runners and probably most important was the 1:1 coaching. I had no idea how to tackle training for a 1/2 marathon and this program broke all of it down, had it individualized for me and we tweaked as we went to make sure I was staying healthy and strong. I had so many questions the week prior to my race and Coach Cat was always there for me and answering all the questions and issues I had-and believe me there were a lot! The biggest benefit I think I got was the strength. I am strong and fit. But most important was what I gained emotionally. I built confidence and strength I didn’t know I had, even at my age. Honestly could not have done this without Spark Healthy Runners!
My Healthy Runner journey started after I had battled bilateral achilles pain for a few months and was frustrated how it affected my running. As soon as I talked to Duane I knew I had made the right decision. His positivity, enthusiasm and genuine care are infectious. The training plan that was tailored to me included specific exercises to rehab my injury and I was so excited that I didn’t have to stop running. It took patience to only run slow for a few weeks but I trusted the process and it got me me to where I am now: running pain free. We made adjustments to the plan throughout whenever needed having someone in your corner that is always there with guidance and support throughout the process was invaluable.
I just ran my second half marathon, both with Duane’s coaching, and PR’d by over 9 minutes! I got all choked up in the last mile when I realized that I felt strong and could still kick it up a notch.
I’m so thankful for the Healthy Runner program, community and the entire coaching team for all the support!