Patellofemoral Pain Syndrome: Why Your Knee Hurts (Especially with Stairs or Running)
If you feel pain in the front of your knee, especially when going up stairs, squatting, or running, you may be dealing with patellofemoral pain syndrome (PFPS)—commonly known as runner’s knee.
According to the American Academy of Orthopaedic Surgeons, this condition is one of the most common causes of knee pain in active individuals.
👉 https://orthoinfo.aaos.org/en/diseases–conditions/patellofemoral-pain-syndrome/
What Is Patellofemoral Pain Syndrome?
Patellofemoral pain syndrome refers to irritation where your:
👉 Kneecap (patella) meets your thigh bone (femur)
When the kneecap doesn’t track properly, it creates:
Pain in the front of the knee
Inflammation
Increased pressure with movement
The Cleveland Clinic provides a great breakdown of how this joint works and why irritation develops:
👉 https://my.clevelandclinic.org/health/diseases/14599-patellofemoral-pain-syndrome-pfps
Common Symptoms of PFPS
You might have patellofemoral pain syndrome if you notice:
Pain going up or down stairs
Discomfort with squatting or lunging
Pain after sitting for long periods (“movie theater sign”)
Clicking or grinding in the knee
Pain during or after running
What Causes Patellofemoral Pain Syndrome?
PFPS is usually not a single injury—it’s a movement problem over time.
🔹 1. Weak Glutes & Hips
This is the #1 cause. Poor hip control leads to poor knee tracking.
🔹 2. Poor Knee Alignment
Your knee collapsing inward (valgus) increases stress on the kneecap.
🔹 3. Overuse / Training Errors
Increasing mileage too quickly
Too many squats/lunges without recovery
🔹 4. Tight Muscles
Quads
Hip flexors
IT band
🔹 5. Foot Mechanics
Flat feet or poor footwear can change knee mechanics upstream.
For evidence-based rehab strategies, the Journal of Orthopaedic & Sports Physical Therapy outlines clinical practice guidelines for PFPS:
👉 https://www.jospt.org/doi/10.2519/jospt.2019.0302
What to Do If You Have Patellofemoral Pain Syndrome
✅ 1. Modify Activity (Not Stop Completely)
Avoid painful movements, but stay active with:
Walking
Low-impact cardio
Controlled strength work
The Mayo Clinic also supports staying active rather than complete rest:
✅ 2. Strengthen the Right Muscles
Focus on:
Glutes
Hip stabilizers
Core
👉 This is where most people go wrong—they only focus on the knee.
✅ 3. Improve Mobility
Target:
Hip flexors
Quads
Ankles
❌ What NOT to Do
Don’t push through sharp knee pain
Don’t rely only on rest
Don’t just use a knee brace without fixing the cause
How Long Does It Take to Heal?
With the right approach:
Mild cases → 2–4 weeks
Moderate cases → 4–8 weeks
Without proper treatment, it can become chronic and recurring.
How Physical Therapy Fixes Runner’s Knee
At a clinic like yours in Chicago, treatment focuses on the root cause, not just symptoms:
🔹 Movement Assessment
Identify why your kneecap isn’t tracking properly
🔹 Strength Program
Glutes
Hips
Core
🔹 Technique Correction
Running mechanics
Squat/lunge form
🔹 Hands-On Treatment
Reduce pain and improve mobility
Why Your Knee Pain Keeps Coming Back
Most people:
Rest
Feel better
Go back to activity
👉 But never fix the underlying mechanics
That’s why PFPS becomes a cycle.
Chicago-Specific Call to Action
Knee Pain Treatment in Chicago (Runner’s Knee Specialists)
If you’re dealing with patellofemoral pain syndrome, getting the right diagnosis early can save you months of frustration.
At Emerge Physical Therapy & Wellness in Lincoln Park, we specialize in:
1-on-1 care
Treating active adults and runners
Fixing the root cause of knee pain
👉 Book your evaluation today and get back to pain-free movement.
What is the fastest way to heal patellofemoral pain syndrome?
Targeted strengthening of the hips and glutes combined with activity modification is the fastest path to recovery.
Should I keep running with runner’s knee?
You can continue if pain is mild, but mileage and intensity should be reduced.
Is patellofemoral pain syndrome permanent?
No—most cases fully resolve with proper rehab.
Do knee braces help PFPS?
They may reduce symptoms temporarily but don’t fix the underlying issue.
