The Effect of Patellar Taping and Isometric Strength Training on Quadriceps Strength with Patellofemoral Pain Syndrome.

Inclusion Criteria

• •knee pain for at least eight weeks that was aggravated by activities such as descending and ascending stairs, squatting, and running.
• •knee pain with a positive J sign (lateral tilt of patella)
• •more symptomatic and mal align knee included in case of bilateral involvement and a sign of patellar malalignment on the radiograph.