Team RunRun coach Kyle Fulmer goes Heel Counter to Popular Belief to tell how calf raises and holds might just heal your Haglund’s runner heel.
Joyful running can be easily taken for granted. The miles tick off, as the sun starts to lift above the horizon, and sweat starts to build on our backs. We run freely, and begin to think about the day ahead, or perhaps set plans for many days thereafter. Idyllic scenes like this are exactly that, idyllic. Often the act of running is more a labor of love, than a weightless foray in blissful escape. And the quickest way to suck all that bliss out of the daily running ritual is to battle stubbornly through injury.
Sometime in the summer of 2016 I developed a pain on the outside of my left foot while running. Being fairly new to the sport, I didn’t start running until late 2012 and ran my first ultra in late 2013, “injury” was a word that had little meaning to me. I was lucky to survive high school sports, college intramurals, and men’s league basketball with nary an Issue. I’ve since learned I have hyper mobility in my ankles, which sounds cool, but in actuality can cause major issues further up the kinetic chain.
I told one of my running mentors, who was 20+ years older than me, this might go away after a few months. He laughed and said, “try a few years”. Little did I know. In 2017 the first signs of calcium deposits and bone growth showed up on my left heel, with the accompanying pain. In 2021, the same bump developed on my right heel. Pain was ever-present, as were stories of our favorite ultra-runners going under the knife to scrape out the wicked Haglund’s Deformity calcium build-up which is what I later learned these pump-bumps were called.
What is Haglund’s Runner Heel?
Haglund’s well known to many high-profile, and not so high-profile, runners in our sport can affect upwards of 36% of the general population (3). The deformity was first discovered by Dr. Patrick Haglund in 1927. Wearing hard-heeled shoes, and repeated bouts of friction on the elongated heel bone created by the calcium deposits can contribute to the swollen tissue and pain when exercising. In many cases the situation gets so dire that the runner feels like surgical excision of the bone spur is the only viable course of action (5).
The cruelest aspect of Haglund’s is even once surgery has been deployed, the bumps will occasionally return (5). I have read that specific biomechanics also contribute to the affliction. There is some commentary that those with long levers, high arches, and elongated second toes might be more predisposed to Haglund’s – spoiler alert – I have all three! (1)

During Hardrock in 2022, I told my pacer I might have to quit running as the pain at times was too much and zapped all joy out of running. Despite brief interludes of relief, the swelling and accompanying pain would always come roaring back. Now, not being a quitter, there was no way I was going to stop running. Although to that point, I had tried everything under the sun to alleviate the pain: massage, acupuncture, eccentric calf raises, shoes with higher drop, cutting out the heels from my shoes, inserts and orthotics, and generally ignoring the pain. Not of these remedies had lasting effects (4).
Finding Heel Relief
It wasn’t until the winter of 2024 when my friend, physical therapy professional and ultra-runner Guy Love introduced me to the concept of isometric holds and heavy weight bearing exercises to “load” my heel and tendons, with the intention of re-introducing strength into my lower limbs and tendons. In short: my feet, ankles, achilles, and calves (primarily the soleus) had grown weak over time, and needed to be “turned on”. We would achieve this not by stretching the achilles, which is the commonly perceived antidote, but by loading it! We now had a strategy for targeting some Haglund’s runner heel relief.
Guy’s gym protocol was very intimidating at first. We started with 2-3 sets of calf raises with 135 lbs on the barbell rack. And, would follow this up with 30-45 second calf raise holds. We would perform these with straight legs, and then with bent legs to isolate the soleus. Within a few months we progressed up to 185 lbs on the barbell, and confidence was starting to return to my running stride in the mountains, and pain was generally starting to disappear on my daily runs.
In addition to the weight activity on the platform racks, we would also add in the usual suspects of runner strength routines: single leg deadlifts, single leg squats, split squats and posture reinforcing upper body work. The results from this gym work were quite astonishing and looking for confirmation bias (as one does), I found a video from the famous Squat University on YouTube focusing on the same issues with the Haglund’s and prescribing almost the same rehab routine (3)! They focused on single leg calf raises, holds and an excellent variation of combining the weighted calf raise with a wall sit, by placing a dumbbell across the knees with heels raised of course. Coach Eric Orton, of Born to Run fame, also prescribes a similar protocol involving single leg calf raises and holds (6). Where my foundation had grown weak from years of “collapsed” running, I was now introducing real strength and stability back into my running gait!
Fast forward a couple of years, I still have my Haglund’s runner heel bumps, and it still hurts like holy hell to smack my heels into a chair leg, BUT I am running pain free. Occasional pains still pop up, but those are just a reminder to get back in the gym, or find a doorjamb nearby to perform some heel raised isometric presses into. With a big slate of races on the calendar this year: Quad Rock, San Juan Solstice, and High Lonesome, I am so happy and relieved to finally be moving past the brunt of this chronic injury. I am also hoping this chronicle of scientific and anecdotal evidence will bring you some strength and relief if you have been dealing with the same nagging injury. Joy is returning to the run again, and I couldn’t be more thankful.
Sources:
(1) APMA, Conditions Affecting the Foot and Ankle, Haglund’s Deformity https://www.apma.org/patients-and-the-public/conditions-affecting-the-foot-and-ankle/haglunds-deformity/
(2) Medicine Journal, Prevalence of Haglund deformity in a hospital-based sample in Turkey
https://journals.lww.com/md-journal/fulltext/2025/10170/prevalence_of_haglund_deformity_in_a.47.aspx
(3) https://www.youtube.com/watch?v=zw43enZOyc8 – Squat University, How to Fix Achilles Tendonitis: Evidence-Based Methods to End Pain
(4) Treat My Achilles, Exercises for Haglund’s deformity – what works and what to avoid
https://www.treatmyachilles.com/post/exercises-for-haglund-s-deformity-what-works-and-what-to-avoid
(5) PubMed Central, Persistent Haglund’s disease after conventional treatments: the innovative role of radiotherapy https://pmc.ncbi.nlm.nih.gov/articles/PMC6180870/
(6) https://www.youtube.com/watch?v=KJts_ho03bQ -Coach Eric Orton, Run Strength – Foot Core Basics

Kyle Fulmer is a coach with Team RunRun. To learn more about him or to work with him, check out his coach profile.




























































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