12/30/2025
Do you suffer from Knee Pain? How Quad Imbalances & the IT Band Affect Your Knees
Struggling with knee pain ? Learn how the vastus medialis, vastus lateralis, and IT band influence kneecap tracking—and what actually helps relieve knee pain long term.
The Vastus Lateralis (VL), Vastus Medialis (VMO), and the iliotibial (IT) band all influence how the kneecap (patella) tracks during movement. When their forces are unbalanced, knee pain- especially at the front or outer knee- can develop.
Vastus Lateralis (outer quad- VL)
• Pulls the kneecap outward in a (lateral direction)
• Often becomes overactive or tight with repetitive activities like running, cycling or squatting
• Excessive lateral pull can cause the patella to track too far outward, increasing joint stress
• Commonly linked to patellofemoral pain and lateral knee pain
Vastus Medialis (inner quad/VMO)
• Helps guide the kneecap inward and stabilize it during knee extension
• Delayed activation or weakness reduces control of patella tracking
• When underactive relative to the VL, the kneecap is more likely to drift laterally
• This imbalance increases compressive forces behind the kneecap
IT Band
• A thick band of connective tissue running from the hip to the outer knee
• Connects to the lateral retinaculum influencing patellar position
• Tightness or excessive tension increases lateral pull on the kneecap
• Also contributes to outer knee pain through friction and compression of the knee
How this leads to Knee Pain?
When the VL and IT band dominate and the VM lacks strength or timing, the kneecap doesn’t glide smoothly in its groove. Over time this causes:
• Irritation of the cartilage under the kneecap
• Inflammation of the surrounding tissues
• Pain with stairs, running, squatting, or prolonged sitting
Key Take away:
Knee pain is rarely about one muscle alone. It’s about balance, timing, and load tolerance across the entire system-including the hip and foot. Addressing quad imbalance, IT Band tension, and movement mechanics together is more effective than isolated stretching and strengthening
See the videos below for exercise demonstrations:
https://youtu.be/mF_7CzkPYpU?si=WpXCkxf00fyQ1m8a
https://youtu.be/XWB5PrJASZU?si=e-f0G9g8A1mkdyDG
https://youtu.be/B9pbRKnLTHY?si=wEI2o8rd3OgSPYdX