
Therapeutic exercise
Controlled Step-Down
Eccentric closed-chain exercise with high specificity for patellofemoral syndrome. Trains control of dynamic knee valgus.
How to perform
- Starting position. Stand on a step with the affected foot next to the edge.
- Step 2. Slowly lower the unaffected foot until it nearly touches the ground (without transferring weight).
- Step 3. The supporting knee should stay aligned with the second toe — never collapsing inward.
- Return. Rise with control using the affected leg as the primary mover.
When not to perform
- Anterior knee pain that worsens with the movement
- Patellar instability
Medical disclaimer. These exercises are presented for informational purposes only. Always consult your physician before starting any exercise program, especially in case of acute pain, recent injury, or underlying clinical condition.
Related Exercises

Standing Quadriceps Stretch
Stretches the quadriceps and rectus femoris, frequently shortened in patients with chondromalacia. Reduces traction on the patella.

Mini Squat (0 to 45 Degrees)
Partial squat limited to the first 45 degrees of knee flexion, protecting the patellofemoral joint while recruiting quadriceps, glutes, and knee stabilizers. The exercise of choice in knee osteoarthritis and the early phase of meniscal or ligament rehab.

Low Step-Up
Functional closed-chain exercise with progressive load. Rehabilitates the ability to climb stairs, the main functional limitation in knee osteoarthritis.