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Runners can experience pain around the kneecap. Learn simple reasons it happens, easy steps to feel better and move pain-free, and how Ascend Physical Therapy helps runners in Hendersonville overcome knee pain.
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Knees should help you move—not make you wince. If your knee hurts during or after a run, it might not be “just getting older.” It could be Runner’s Knee, and the fix may be easier than you think.
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Runner’s Knee is a common name for pain around the kneecap. It shows up during running, walking downhill, or even just standing after sitting for a long time. If this sounds familiar, you’re not alone. Many clients that I treat in the clinic feel this type of pain and don’t know why. But don’t worry—understanding what’s going on is the first step to fixing it. Let’s look at what causes Runner’s Knee and the best ways to feel better.
What Is Runner’s Knee?
Runner’s Knee is a nickname for patellofemoral pain syndrome. That’s a big name for something pretty simple: the area where your kneecap meets your thigh bone is irritated. It doesn’t just happen to runners. It can happen to walkers, gym-goers, or even people who sit a lot. If your kneecap doesn’t move the way it should, it causes pain.

Why Does Runner’s Knee Happen?
1. Poor Alignment
When your kneecap isn’t moving in a straight line, it rubs against the wrong parts of your joint. This rubbing can cause swelling and soreness.
2. Muscle Weakness
Your thighs and hips help keep the kneecap in place. If they’re weak, your knee has to work harder. Over time, that can lead to pain.
3. Tight Muscles
If your leg muscles are too tight—especially your quads or hamstrings—they can pull on the knee in strange ways, causing discomfort.
4. Bad Form
Whether you’re running, squatting, or even just going up stairs, poor movement habits add up. Over time, these small issues become big problems.
Signs You Might Have Runner’s Knee
- A dull ache behind or around the kneecap
- Pain during stairs, especially going down
- Discomfort after sitting for a while
- Feeling like your knee is weak or wants to “give out”
If any of this sounds familiar, you’re likely dealing with Runner’s Knee.
How To Fix Runner’s Knee
1. Strengthen the Right Muscles
Focus on exercises for your hips, glutes, and quads. These muscles help guide your knee and keep things in line. I have linked some of my favorites down below:
- Spanish Wall Squats
- Step-ups
- Airplanes
Just a few minutes a day can make a big difference.
2. Stretch What’s Tight
Tight muscles pull on the knee and mess up its movement. I prescribe these stretches and mobilizations for my clients with Runner’s Knee and they see quick results:
- Hip flexors
- Quads (front of the thigh)
- Hamstrings (back of the thigh)
- Calves
- IT band
Hold each stretch for 20–30 seconds, and do it often.

3. Check Your Form
How you move matters. If your knees collapse inward during a squat or run, it’s time to adjust. Range of motion is key with this. Here are some of the major form checkpoints you can do at home:
- Knee Flexion | Can you bend your knees so your heel touches your buttocks?
- Knee Extension | Can you straighten your knees flat on a mat?
- Hip Flexion | Can you bring your knee to your chest?
- Hip extension | Can you stand in a staggered stance (one foot in front of your body and the other behind) without arching your low back?
- Hip Internal Rotation | Can you touch your heels together and point the toes out?
- Hip External Rotation | Can you touch your toes together and turn your heels out?
When To Get Help
If pain sticks around for more than a few weeks—or keeps coming back—it’s time to ask for help. A physical therapist can:
- Find the exact problem
- Guide you with the right exercises
- Help you move better long-term
Don’t wait until your knee “gives out” on a flight of stairs or during a golf swing. Fixing the problem early is the best move.
Conclusion: Get Ahead of Runner’s Knee
Runner’s Knee doesn’t mean you have to stop doing what you love. With simple changes and the right exercises, your knee can feel better fast. Don’t let a little pain become a big problem.
Not sure if your knee pain when running is runner’s knee or something else? Start with our quick 2-minute knee pain quiz to help point you in the right direction.






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