Which activity commonly provokes PFPS symptoms?

Which activity commonly provokes PFPS symptoms?

• A. Climbing stairs
• B. Sleeping
• C. Reading
• D. Driving

Answer: (A)

Pain from patellofemoral pain syndrome tends to show up with activities that put the patellofemoral joint under load when the knee is bent. Climbing stairs is the classic trigger because it requires substantial knee flexion and active quadriceps contraction to lift and control the body. This increases the contact pressure between the patella and the femur, causing irritation of the joint surfaces and surrounding soft tissues. Repeated stair climbing reinforces this loading, leading to anterior knee pain that many patients report with PFPS. Sleeping, reading, and driving don’t push the knee into the high‑flexion, high‑load positions that provoke PFPS, so they’re not typical triggers for this condition.

Pain from patellofemoral pain syndrome tends to show up with activities that put the patellofemoral joint under load when the knee is bent. Climbing stairs is the classic trigger because it requires substantial knee flexion and active quadriceps contraction to lift and control the body. This increases the contact pressure between the patella and the femur, causing irritation of the joint surfaces and surrounding soft tissues. Repeated stair climbing reinforces this loading, leading to anterior knee pain that many patients report with PFPS.

Sleeping, reading, and driving don’t push the knee into the high‑flexion, high‑load positions that provoke PFPS, so they’re not typical triggers for this condition.