Overview
Quadriceps strength supports knee stability and reduces pain.

Indications
Knee osteoarthritis, patellofemoral pain, or post-surgery rehab.

How it helps
Improves shock absorption and joint control.

Implementation
Closed-chain exercises, step-ups, and resistance training.

Expected timeline
4–12 weeks for significant gains.

When to seek care
Severe pain or swelling with exercise requires review.