Pain under kneecap with stairs
Also Known As: Patellofemoral pain syndrome, runner’s knee (anterior), chondromalacia patella, anterior knee pain
Aching or sharp pain behind or around the kneecap during stairs, squats, prolonged sitting, or running — especially downhill. Often bilateral. May include grinding sounds (crepitus). Typically worsens with loading and eases with rest, then returns when activity resumes.
Common Causes
Patellofemoral pain syndrome from poor patellar tracking due to quad weakness, hip weakness, or tight lateral structures
Increased training load on stairs, hills, or squatting movements without progressive adaptation
Poor hip abductor and external rotator control causing knee valgus and lateral patellar compression
Prolonged sitting with the knee flexed causing sustained patellofemoral compression
Running downhill concentrating force at the patellofemoral joint
Return from inactivity too quickly
Did You Know?
Patellofemoral pain is one of the most over-rested and under-loaded conditions in sports PT. The patella needs controlled compressive load to adapt. Complete avoidance of squatting and stairs typically makes the pattern worse, not better, by reducing the tissue’s capacity over time.
How Zenith Can Help
At Zenith in Eugene, we assess patellar tracking, quad and hip strength, foot mechanics, and movement quality under load. Manual therapy addresses lateral retinaculum tightness, hip mobility, and knee joint mobility. We build a progressive loading program around your actual movement demands — stairs, squats, lifting weights, running, cycling, and hiking — and modify what needs to be modified while keeping you active. Full-hour one-on-one sessions let us actually build tissue tolerance, not just manage symptoms.
Next Steps
Patellofemoral pain that’s been present more than 4–6 weeks without improvement warrants a proper evaluation. Book a PT session — the right loading approach can make a significant difference faster than most people expect.
Stair-heavy environments common in Eugene’s hilly neighborhoods, plus trail running with significant elevation gain, are both high patellofemoral load activities. If pain shows up after Ridgeline loops or Spencer Butte hikes, quad strength and hip control under load are the first two things to assess.