Runner's Knee (Patellofemoral Pain) in High School Athletes

Why high school runners Get Runner's Knee

Tracking issues at the kneecap, usually driven by weak glutes, quad imbalance, or training spikes.

In high school runners specifically, the risk is amplified by rapid training progressions, multi-sport schedules, growing tissues. Specific to 14-18 year-old athletes whose bones and tendons are still maturing.

Early Warning Signs

These are the signs to act on — before the injury becomes a multi-week problem.

• Dull ache around or behind the kneecap
• Discomfort going down stairs
• Stiffness after sitting

When to Stop and Get Checked

These signs mean you're past self-care territory — see a sports medicine provider.

• Pain that stops you mid-run
• Swelling
• Pain on every step

What to Do This Week

If you caught it early, here's the self-care protocol most high school runners respond to.

• Reduce mileage by 30-50%
• Quad and glute strength daily (split squats, bridges)
• Avoid downhill work
• Ice after sessions

Prevention: Stop the Cycle

Runner's Knee is rarely a one-time event — it returns when the underlying causes aren't addressed. Build these into your weekly routine.

• Glute and quad strength 2-3x/week
• Cap mileage jumps at 10%
• Address asymmetric weakness
• Audit shoe wear

The Bottom Line for High School Athletes

Runner's Knee in high school runners is preventable, treatable, and survivable — if caught early. The mistake most runners make is normalizing the early signs and pushing through. Don't. The cost of one week off now is far less than four weeks off later.