Does playing one sport increase risk?
Yes. Single-sport specialization increases PFP risk by 1.5x compared to playing multiple sports. The repeated, identical joint loading pattern is the issue, not the sport itself.
What is the biggest risk factor overall?
Weak quadriceps. Isometric knee extensor weakness is a primary predictive risk factor for developing PFP, ahead of any anatomical trait.
Is body type a risk factor?
No. Despite common assumptions, BMI, height, and weight do not predict who develops PFP.
FAQ
Are women really more at risk than men?
Yes. Physically active women are 2x more likely to develop PFP than active men.
Does playing multiple sports lower my risk?
Yes. Multi-sport athletes have a lower cumulative PFP risk than single-sport specialists, who face a 1.5x higher incidence rate.
