Why Your Knees Hurt After Running (and How to Fix It)
You finish a run feeling good. Then you sit down, get back up an hour later, and your knees have other ideas. Does this sound familiar?
Knee pain after running is one of the most common complaints we see. It affects everyone from complete beginners to experienced athletes.
The pain might show up during a run. Or the next morning when you climb out of bed. Sometimes it’s a dull ache. Sometimes it’s sharp and stops you in your tracks.
Either way, it’s telling you something.
The good news is that most running-related knee pain isn’t a sign of serious damage. It usually comes down to a handful of identifiable causes.
Once you know what’s driving it, you can actually do something about it!
Knee Pain After Running — Why It Happens in the First Place
Before we get into fixes, let’s dive into what’s actually going on.
The knee is a complex joint. It’s not just bone on bone — there’s cartilage, tendons, ligaments, several bursae, and muscles from the hip all the way down to the calf. They all play a role in how it moves.
When one part of that system fails, the knee ends up compensating. And compensation, over time, becomes pain.
Running makes this worse. Every stride you take, your knee absorbs roughly three times your body weight in force. Do that a few thousand times over the course of a 5km run, and you start to understand why things flare up.
Here are the most common reasons your knee joint running is giving you grief.
Too Much, Too Soon — The Most Overlooked Cause of Knee Pain
This one gets people constantly.
They sign up for a fun run, get excited, jump from 10km a week to 30km a week in a fortnight, and wonder why their knees are screaming.
The body adapts, but it needs time to do it.
Muscles respond relatively quickly to a new load. But tendons and cartilage? Much slower. When you ramp up your running volume too fast, the soft tissue around the knee simply can’t keep up. That’s when things start to break down.
A general rule most physios and osteopaths follow is the 10% rule — don’t increase your weekly mileage by more than 10% from one week to the next. It’s a simple guardrail, but it prevents a lot of unnecessary pain.
If you’re part of one of the running clubs in Brisbane and you’re following a structured training program, this is usually built in.
But if you’re training solo, it’s easy to skip. Please don’t!
Weak Hips and Glutes — Your Knees Are Paying the Price
This surprises a lot of runners. Their knees hurt, but the real problem is further up.
Weak glutes and hip stabilisers mean the pelvis drops slightly with each stride. That subtle drop creates a chain reaction — the thigh rotates inward, the kneecap shifts out of its groove, and suddenly you’ve got friction, pressure, and irritation where there shouldn’t be any.
It’s one of the most common patterns we see in people dealing with what’s sometimes called runner’s knee. Or in technical terms, patellofemoral pain syndrome. The knee is sore after running, but the knee itself isn’t really the problem.
Strengthening the glutes and hips is often the single most effective thing a runner can do to protect their knees long-term.
Single-leg squats, lateral band walks, and hip bridges aren’t glamorous. But they work.
IT Band Syndrome — The Outside of the Knee
If your pain is on the outer side of the knee, this is likely what’s going on.
The iliotibial band is a thick strip of connective tissue running from the hip down to just below the knee. In runners, it can become tight and inflamed where it crosses the outside of the knee joint. Especially on downhill sections or longer runs.
IT band syndrome tends to creep up gradually. The first few kilometres feel fine. Then, somewhere around the 6 or 8km mark, a sharp pain appears on the outside of the knee that gets worse with every step.
Foam rolling the outer thigh helps. So do hip strengthening exercises. But if the pattern keeps repeating, it usually points to a biomechanical issue that needs a proper assessment — not just a foam roller.
Poor Running Form — Small Problems, Big Consequences
Running technique matters more than most people realise.
Overstriding, which means landing with your foot too far in front of your body, puts enormous stress on the knee with every step. A forward trunk lean, collapsing ankles, or poor arm drive can all create compensations that end up loading the knee joint unevenly.
The tricky part is that poor form often feels completely normal to the person running. You can’t feel your own running form the way someone watching you can.
A running assessment is something a sports osteopath can help with. It takes the guesswork out of this completely. It shows exactly what’s happening at each stage of your running cycle and gives you something concrete to work on.
Worn or Wrong Footwear
Shoes matter.
Running in worn-out shoes, or shoes that aren’t suited to your foot type, changes the way force travels through your lower limb with every step.
A shoe that’s lost its cushioning might look fine on the outside. But the midsole (the part that does most of the shock absorption) degrades long before the outer sole shows any obvious wear. Most running shoes have a lifespan of around 600–800km. After that, they’re not doing the job they’re supposed to.
If you’re not sure whether your shoes are the problem, take them into a proper running store and get assessed.
It’s a small investment that can prevent a lot of downtime.
Knees Hurt After Running? Here's What You Can Do
Let’s get practical. If your knees hurt after running, here’s where to start.
Rest — but not complete rest. Total rest isn’t usually necessary and often makes things worse by letting everything stiffen up. Active recovery, like walking, swimming, and cycling, keeps blood flowing to the area without the repetitive load of running.
Ice in the short term. If there’s acute swelling or heat in the knee, ice for 15–20 minutes can help calm things down. Don’t apply it directly to skin.
Look at your training load. Be honest about whether you’ve ramped up too quickly. Pull back your volume and rebuild more gradually.
Strengthen around the knee. Glutes, quads, hamstrings, and calves all support the knee. A targeted strengthening program makes a significant difference over time.
Get your footwear checked. If your shoes are old or wrong for your foot type, replace them.
Don’t ignore it. A knee that’s mildly sore after one run and fine the next day is different from a knee that’s progressively getting worse. If it’s escalating, get it looked at.
When to See a Professional About Knee Pain
Some knee pain resolves with rest and a bit of load management. But there are signs that warrant a proper assessment sooner rather than later.
See someone if:
- The pain doesn’t settle within a few days of rest
- You’re changing the way you walk to avoid pain
- There’s swelling, locking, or giving way in the knee
- The pain is getting worse despite backing off on training
- You’ve had the same issue come back multiple times
For runners specifically, seeing a sports osteopath is often the most direct route to getting a real answer. A sports osteopath doesn’t just look at the knee in isolation. They look at the whole kinetic chain — your hips, ankles, feet, pelvis, and how everything moves together. That full picture is usually where the actual cause of the problem sits.
At Prime Health Hub, we work with a lot of runners — from people dealing with their first bout of knee pain to competitive athletes managing recurring sports injuries in Brisbane. Whether it’s your first time seeing an osteopath or you’ve been dealing with this for a while, a thorough assessment gives you a diagnosis you can actually work with.
If you’re looking for a local osteopath in Brisbane who understands the demands of running, we’re here.
A Note for Brisbane Runners
Brisbane has a genuinely great running community.
The weather, the parks, the river loops — it’s the perfect city to run in. And the number of running clubs in Brisbane has grown significantly over the past few years, with options for every pace and fitness level.
But more runners means more running injuries. Knees, in particular.
If you’re training consistently, whether solo or with a group, it’s worth building a relationship with a health professional who understands sport.
Not just someone to see when things go wrong, but someone who can help you train smarter and stay on the road longer.
Conclusion
Knee pain after running is common. But common doesn’t mean normal — and it definitely doesn’t mean you just have to put up with it.
Most of the time, there’s a clear reason it’s happening. And a clear reason means a clear path to fixing it.
Start with your training load, your shoes, and your strength work. If that doesn’t move things in the right direction, come and see us.
We’ll work out what’s actually going on and get you back running without dread every time you stand up from the couch.