The Big Three Running Injuries, and How to Prevent Them
Three injuries account for a huge share of the running niggles I see: shin splints, runner’s knee and IT band syndrome. The good news is they share the same root cause, and largely the same fix.
Almost every running injury is a load problem. You asked your body to do more than it was prepared for, whether that is more distance, more speed, more hills, or more of all three at once. Understand that, and prevention stops being mysterious.
Let me walk you through the big three: what they are, why they happen, and the practical, evidence-based ways to keep them away. None of this replaces seeing a physio if you are hurt, but it will help you stay off their table in the first place. And here is the encouraging part. Because these injuries share a root cause, the same handful of habits protects you against all of them at once. You are not learning three separate prevention plans. You are learning one, and applying it.
Your tissues, your bones, tendons and muscles, can handle a certain amount of load. Training builds that capacity, but slowly. Injuries happen when the load you pile on outruns the capacity you have built.
So prevention is two things: manage the load sensibly, and build the capacity to handle more. Get those right and the big three rarely get a look in. Nearly everything below is a version of these two ideas.
Injury One: Shin Splints
That aching, tender pain down the inside of your shin, often in the early weeks of a training block or a comeback. The catch-all term is medial tibial stress syndrome.
- Cause: usually too much, too soon. A sudden jump in mileage or intensity, often on hard surfaces, before your legs have adapted.
- Prevent: build mileage gradually and take down weeks. This is the single biggest lever.
- Prevent: strengthen your calves and lower legs. Strong calves absorb impact your shins would otherwise take.
- Prevent: do not build big on dead shoes, and mix in softer surfaces where you can.
- Respect it: shin pain that lingers or sharpens needs assessing, because ignored, it can progress to a stress fracture. That is a red flag, not something to run through.
Injury Two: Runner’s Knee
Pain around or behind the kneecap, often worse going downhill, down stairs, or after sitting for a while. The technical name is patellofemoral pain syndrome, and it is especially common in women.
- Cause: a mix of load spikes and how force travels through your hip, knee and foot. Weakness in the hips and glutes often lets the knee track poorly under load.
- Prevent: build hip and glute strength. This is one of the most effective things a female runner can do for her knees.
- Prevent: single-leg strength work, because running is single-leg and that is where control matters.
- Prevent: progress downhill running and speed work gradually, since both load the knee more.
- Consider: a slightly quicker, shorter stride can reduce load through the knee for some runners.
A short, twice-a-week strength routine targeting the calves, hips and glutes that keep the big three away. The exact exercises I give my runners. PDF, straight to your inbox.
Send it →Injury Three: IT Band Syndrome
A sharp or burning pain on the outside of the knee, usually coming on partway into a run and easing when you stop. The iliotibial band runs down the outside of your thigh, and the pain is where it meets the knee.
- Cause: often a load and control issue at the hip. Weak hip stabilisers, sudden mileage jumps, lots of camber or downhill running, or always running the same direction on a track.
- Prevent: hip and glute strength again, especially the muscles on the side of your hip that stabilise your pelvis.
- Prevent: build load gradually and vary your routes so you are not always cambered the same way.
- Note: foam rolling the outside of the thigh can feel nice but does not lengthen the band. The lasting fix is strength and load management, not rolling.
The Prevention Toolkit
Pull it all together and injury prevention for the big three comes down to a handful of habits. Do these and you tilt the odds hugely in your favour.
- Build mileage and intensity gradually. Avoid sudden spikes. Take regular down weeks.
- Change one thing at a time, not distance and speed and hills all at once.
More in my guide to building mileage safely.
- Calves, hips, glutes and single-leg control are the priorities for runners.
- This is the highest-value injury-prevention tool there is.
My piece on strength training for female runners has the full case.
- Under-fuelling weakens bone and slows tissue repair, raising injury risk. Eat enough, with enough protein.
- Sleep is when your body rebuilds. Protect it.
- Low energy availability, especially with a missing period, is a serious bone-injury risk. Take it seriously.
- Catch problems at the whisper stage. A few easy days now beats months off later.
- Pain that worsens as you run, changes your gait, or lingers the next day means stop and get assessed.
When to See a Physio
Prevention is the goal, but if something has already flared, do not just rest and hope, and definitely do not push through sharp or worsening pain. A good physiotherapist will find why it happened, not just treat where it hurts, which is what stops it coming back. See one promptly for pain that worsens with running, changes how you move, lingers at rest, or does not settle within a week or two of sensible easing off. Shin pain that sharpens or localises deserves quick attention because of the stress-fracture risk.
Two More Worth Knowing
The big three cover most of what I see, but a couple of others come up often enough to mention, and they follow the same load-and-capacity logic.
- Pain or stiffness in the Achilles or calf, often worse first thing in the morning or at the start of a run.
- Usually a load spike, often from a jump in speed work or hill running, on calves that were not ready.
- Prevent with progressive calf strength and by building intensity gradually. Respect it early, as Achilles issues can become stubborn if ignored.
- Pain under the heel or arch, classically sharp with the first steps of the morning.
- Linked to load spikes, calf and foot weakness, and sometimes footwear changes.
- Prevent with foot and calf strength, gradual load, and not overhauling your shoes overnight.
Do Stretching and Foam Rolling Actually Help?
Honestly, less than the internet claims, and far less than strength and load management. Here is the balanced view. Foam rolling and stretching can feel good, ease short-term tightness and be a pleasant part of a warm-down, so if you enjoy them, carry on. What they do not do is fix the underlying cause of the big three, which is load outrunning capacity. If your foam roller is your entire injury-prevention plan, you are polishing the wrong thing. Spend the bulk of your prevention effort on building load sensibly and getting strong. Roll and stretch on top if you like them, not instead.
Coming Back After One of These
If you have had one of the big three, the return is where women so often re-injure, because the temptation is to jump straight back to where you were. Resist it. Come back below your previous level and build up gradually, ideally with a physio guiding the load. Keep up the strength work that should have been there in the first place. And treat the comeback as a chance to fix the cause, weak hips, too-fast progression, under-fuelling, rather than just waiting for the pain to fade and repeating the same pattern. An injury handled well makes you a more durable runner. Handled badly, it becomes a recurring visitor.
Cadence, Form and Footwear
These get a lot of attention, so here is a measured take on where they actually fit.
- Cadence. Many runners over-stride, landing with a long, braking step that loads the knee and shin. Gently increasing your step rate, so you take slightly quicker, shorter steps, can reduce impact for some runners. A small, gradual tweak, not a dramatic overhaul.
- Form. There is no single perfect form. Chasing a textbook style can cause more problems than it solves. Let strength and sensible load do the heavy lifting, and let your natural stride be mostly what it is.
- Footwear. The best shoe is the comfortable one that lets you run pain-free. Do not change your shoes drastically overnight, and replace worn-out ones. Beyond that, comfort beats theory.
Cross-Training While You Heal
If you are nursing a niggle or coming back from one of these, you do not have to sit still and lose all your fitness. Low-impact cross-training keeps your engine ticking over while your legs recover. Swimming, cycling, aqua-jogging and the cross-trainer all build aerobic fitness with little or no impact, so you can maintain a lot of your hard-won fitness through a running lay-off. This is genuinely reassuring news when an injury feels like it is undoing months of work. It usually is not, as long as you keep moving in ways that do not aggravate it. Always take the specifics from whoever is treating you, but the principle holds: staying active, gently and appropriately, beats total shutdown for both body and morale.
The Small Habits That Add Up
You do not need hours of prehab to stay healthy. A little, done consistently, beats a big rehab plan you follow for a week and drop. If you build just a handful of habits into your normal week, you tilt the odds strongly in your favour.
- Two short strength sessions a week, focused on calves, hips and glutes. Even 20 minutes counts.
- A gradual build, with a down week every three or four weeks.
- Enough food and protein to repair, and enough sleep to rebuild.
- A quick honest check-in on any niggle before each run, using the green-amber-red idea from my mileage guide.
None of this is glamorous, and none of it will fill your social feed. But it is exactly what keeps women running year after year while others cycle through the same injuries. Boring, consistent, injury-proof. That is the goal, and it is one anyone can reach with a bit of patience and the right habits.
The Short Version
Nearly all running injuries are load-versus-capacity problems: too much, too soon, on legs that were not ready.
Shin splints: build gradually, strengthen calves, mind your shoes and surfaces, and never run through sharpening shin pain.
Runner’s knee: build hip and glute strength, do single-leg work, progress downhills and speed slowly.
IT band syndrome: hip stability strength, gradual load, varied routes. Rolling soothes but does not fix it.
The toolkit: manage load, strength train twice a week, fuel and sleep, and catch niggles early.
See a physio promptly for pain that worsens, lingers or changes your gait.
Staying healthy is not luck. It is load managed well, strength done consistently, and a body fuelled enough to repair. Do that and you get to keep running. Brick by brick.
This article is general information, not medical advice. If you are in pain, see a physiotherapist or doctor for an individual assessment. Pain that is sharp, worsening, or present at rest needs prompt attention.
- You get fit, then one of the big three flares, then you are back to square one
- You know you should strength train but never quite do the right things
- You want to build towards a goal without the injury merry-go-round
- You want a coach who manages your load and builds the strength that keeps you healthy
If you ticked two or more, this is exactly what I help women with.
Apply to work with me →If you want to run consistently and stay off the physio table, that is what I build with the women I coach.
Female-specific run and endurance coaching with load management, strength and fuelling built in from day one. Structured enough to progress, sensible enough to keep you healthy.
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